The 39 Clues - Photo Credits

All images not listed below created by SJI Associates for Scholastic.

Online Mission 2 - India

Node 1: postage stamp: © Ken Brown/Shutterstock, Red Fort: © Galina Mikhalishina/Shutterstock, henna tattoo on hands: © Archana Bhartia/Shutterstock, water lily: © Neale Cousland/Shutterstock, golden monkey: © ErickN/Shutterstock, Buddha statue: © aliciahh/Shutterstock.

Node 2: peacock: © sjgh/Shutterstock, golden ornament: © chen/Shutterstock, wax seal: © Jackie Carvey/Shutterstock, stamp: © Albert Campbell/Shutterstock.

Node 3: Taj Mahal: © Boris Stroujko/Shutterstock.

Node 4: boy: © PhotosIndia (RF)/Getty Images, Taj Mahal: © Martin Allinger/Shutterstock.

Node 5: Taj Mahal: © Mark Weiss/istockphoto.com.

Node 6: Taj Mahal side wall: © Kharidehal Abhirama Ashwin/Shutterstock.

Node 7: Holts: James Levin/© Scholastic 2009, Taj Mahal: © John Woodworth/istockphoto.com.

Node 8: Red Fort: © Ed Freeman/Getty Images.

Node 9: girl: © James Hardy (RF)/age fotostock, Red Fort: © Blaine Harrington III/Alamy.

Node 10: train station: © Kumar Sriskandan/Alamy.

Node 11: Red Fort: © Luciano Mortula/Shutterstock.

Node 12: wall of Red Fort, detail: © Ladi Kirn/Alamy.

Node 13: Diwan-i-Khas, Red Fort: © Angelo Hornak/Alamy.

Node 14: Diwan-i-Khas Red Fort, detail: © Angelo Hornak/Alamy.

Node 16: temple: © iCEO/Shutterstock, painting of face: © Guillermo Garcia/Shutterstock, turbans: © John Moore/Getty Images, snake: © Ryan McVay/Getty Images, wax seal: © Jackie Carvey/Shutterstock, basket of marigold flowers: © Peter Adams (RF)/Getty Images, postmark: © Sergey Lazarev/Shutterstock, postage stamp: © Ragnarock/Shutterstock.

Online Mission 1: Lochness

Dossier: iceberg: © Vera Bogaerts/Shutterstock, Titanic postcard: © Lake County Museum/Corbis, oil painting: © Margaret Johnson/SuperStock, Titanic poster: © The Granger Collection, early 20th century map: © Archives Charmet/The Bridgeman Art Library, Urquhart castle Loch Ness: © Stephen Finn/Shutterstock, Titanic plaque under water: © AP Photo, girl: © S.M. Jones/Minnesota Historical Society, bow railing of Titanic: © Emory Kristof/Getty Images.

Node 01: rusty old sign: © Gyula Matics/Shutterstock, Drumnadrochit. Highlands, Scotland: © age fotostock/SuperStock.

Node 02: businessman: © Steve Prezant/Corbis.

Node 03: red bag in grass: © Peiling/Shutterstock.

Node 04: mill in Scotland: © Susan Mackenzie/Shutterstock, businessman © Steve Prezant/Corbis.

Node 05: briefcase lock: © Pablo Eder, open briefcase: © Siede Preis/Getty Images, briefcase: © Siede Preis/Getty Images, bench at park: © Hakki Arslan/Shutterstock.

Node 07: MacQuairie Masoleum: © Chris Mattison/Alamy.

Node 08: One way sign: © Dan Moore/istockphoto.com.

Node 09: boy smirking: © Stock 4B, boy smiles and looks: © Stock 4B, graveyard at church: © Lenice Harms/Shutterstock.

Node 10: sale sign outside cottage: © Windsor & Wiehahn/Getty Images, Isle of Mull, Scotland: © Stephen Beaumont/Shutterstock. souvenir shop: © Stockbyte (RF)/Getty Images, wooden sign: © Edgars Dubrovskis/Shutterstock, blank sign on wooden pole: © Soca/Shutterstock, notice board: © Margo Harrison/Shutterstock, yellow flag in sky: © Luminouslens/Shutterstock.

Janus: two napkins: © Mark Poprocki/Shutterstock.

Agent: radar screen: © Argus/Shutterstock, radar screen on black: © zphoto/Shutterstock, ship leads marine parade: © Bettmann/Corbis, map of Bermuda Triangle: © Bettmann/Corbis.

Online Mission Training

green radar screen: © Argus/Shutterstock; green radar screen on black: © zphoto/Shutterstock; Ship leads Marine Parade: © Bettmann/Corbis; Map of Bermuda Triangle: © Bettmann/Corbis.

Clue Reveals

Gold: samurai helmet: © snowkoala/istockphoto.com, golden chalice: © KCline Photography/istockphoto.com, golden coins: © FMNG/istockphoto.com, treasure chest: © All-Kind-ZA Photography/istockphoto.com, jewelry treasure: © Jolin/istockphoto.com, gold: © angelo elefante/istockphoto.com, money: © Maksim Shmeljov/istockphoto.com, gold bar: © Tonchik1981/istockphoto.com, treasure: © Boris Yankov/istockphoto.com, golden stairs: © apcuk/istockphoto.com.

Hydrogen: blueprints b19: © Branko Miokovic/istockphoto.com, HVAC Blueprint: © Stanislav Fadyukhin/istockphoto.com, blueprint texture: © nicholas belton/istockphoto.com, periodic table: © David Freund/istockphoto.com, blueprint texture: © nicholas belton/istockphoto.com.

King Cobra Snake Venom: India Delhi Red Fort: © Tibor Bognar/Alamy; Red Fort second angle: © John Peter Photography/Alamy, Delhi Red Fort third angle: © Vladimir Piskunov/istockphoto.com.

Rosemary: pipes: © Hogne Botnen Totland/istockphoto.com.

Wave 1 Digital Rewards

1. Surveillance Camera: graveyard in fog: © Arlene Jean Gee/Shutterstock, alley: © John Foxx/Getty Images, alley 2: © Jeff Spielman/Getty Images, graveyard in night mist: © Don Farrall/Photodisc (RF)/Getty Images, Piazza del Duomo: © Scala/Art Resource, Piazza del Campo: © Angelo Cavalli/Getty Images, Church of Sainte Marie Madeleine: © Maremagnum/Photographer's Choice/Getty images, church and plaza: © Michael Trevillion/Trevillion Images, engraved armor of Henry VIII: © The Board of Trustees of the Armouries/Heritage Image Partnership, F-22 Raptor aircraft: © Tech. Sgt. Mikal Canfield/U.S. Air Force photo.

2. Dan Cahill: Beacon Hill, Boston: © Liz Leyden/istockphoto.com, entrance to Louvre Museum: © Lazar Mihai-Bogdan/Shutterstock, City Hall, Philadelphia: © Nancy Louie/Shutterstock.

3. Catacombs: Paris Catacombs: © Matthew Whittle/istockphoto.com, prehistoric man: © Sedar Yagci/istockhoto.com, skulls and bones: © Sebastien Windal/istockphoto.com, skulls and bones: © GA Photography/Jupiter Images, skulls: © GA Photography/Jupiter Images.

4. Titanic: Titanic wreckage: © Emory Kristof/National Geographic Image Collection, clothesline: © Kenneth Zirkel/istockphoto.com.

6. Thomas Jefferson: cathedral: © Bildarchiv Monheim GmbH/Alamy.

7. Maria Marapao: beach: © javarman/Shutterstock, denim and backdrops: © Photodisc (RF/CD) via SJI Associates, stomach and hands: © Rubberball (RF/CD) via SJI Associates, wall texture: © naphtalina/istockphoto.com, books: © Rob Melnychuk/Digital Vision (RF)/Getty Images.

8. Ophir Dhupam: Indian man: © PhotosIndia (RF)/Getty Images.

9. Harry Houdini: Houdini images (both): © The Granger Collection.

10. Flying Ace: book: © Roger Kirby/Stock.xchng.

11. Rembrandt' Secret: illustration: Kirk Caldwell/© Scholastic 2009, wood background: © Salva Barbera/Stock.xchng.

12. Taj Mahal: mosque entryway: © Jason Edwards/Getty Images, Taj Mahal: © Travel Ink/Getty Images, Taj Mahal side view: © Joanna McCarthy/Getty Images, Taj Mahal Exterior details: © Walter Bibikow/Getty Images.

13. Frankenstein: Paper: © Gregory John Zamets/Stock.xchng.

14. Marie Antoinette: illustration: Craig Spearing/© Scholastic 2009, wallpaper: © Digital Textures (RF/CD) via SJI Associates.

16. Eagle Eye: illustration: Patty Harris/© Scholastic 2009.

15. Telegram: old paper: © Marija/Stock.xchng

19. Monument Valley: ball of twine: © Franck Fotos, Inc., Golden Gate Bridge: © Celso Diniz/Shutterstock.

24. Lilya Chernova: girl wearing hat: © Image Source Photography (RF)/Veer, girl wearing pink shoes: © Digital Vision Photography (RF)/Veer, lockers: © Digital Vision (RF)/Getty Images, © girl sitting on stairs: © Luxe Party (RF)/Getty Images, girl wearing fur: © Image Source (RF)/Getty Images.

25. Astronomer Royal: pen & ink: © alxm/stockxpert.

26. Marie Curie: Pierre Curie: © Ullstein Bild/The Granger Collection.

27. Loch Ness: underwater view: © Nahimoff/Shutterstock, Nessie Lives illustration: Angela Martini/© Scholastic 2009.

28. CERN: aerial view of CERN: © CERN/Photo Researchers.

29. Bermuda Triangle: Bermuda Triangle: © NASA.

30. The Hypnotist: hypnotist poster: © Mary Evans Picture Library, hypnotist and client: © Newscom, papers: © Sophie/Stock.xchng.

31. HALO: experiment diagrams: SJI Associates/© Scholastic 2009.

32. Mechanical Sense: illustration: Drew Morrison/© Scholastic 2009.

33. Samuri Saladin: Tokyo subway: © Andrew Holt/Alamy, William McIntrye: James Levin/© Scholastic 2009, surveillance illustration: © Scholastic 2009.

34. Alistair Oh: breakfast travel: © Barbro Wickstrom/Shutterstock, drawings: © Scholastic 2009, paper: SJI Associates/© Scholastic 2009.

35. Hope Diamond: paper: © Cris DeRaud/stock.xchng, table: © Kriss Szkurlatowski/stock.xchng, seal: © Scholastic 2009, wax seal: SJI Associates/© Scholastic 2009, crest: © Scholastic 2009, diamond drawings: © Scholastic 2009.

36. Grace's Passport: background of airport: © Roger Fischlin/Stock.xchng, brochure stand: SJI Associates/© Scholastic 2009, metal plate with screws: © AlexMax/istockphoto.com.

37. Jean-Baptiste Tavernier: placard: /© Scholastic 2009, old book: © DigitalBuild/istockphoto.com, diamond drawings: Scott Sucher/© Scholastic 2009, paper texture: © Renato Guerra/Stockxchng, old paper: © alex dehnel/Stockxchng.

39. Gordon Klose: world map: © Chen Ping Hung/Shutterstock.

40. Alana Flores: woman (3 angles): © Tom LeGoff, the Louvre: © Jozef Sedmak/Shutterstock, Cathedral of Notre Dame: © Elena Elisseeva/Shutterstock, church: © Kokhanchikov/Shutterstock, Red Square: © Maxim Urievich Lysenko/Shutterstock, Russian temple: © Alexey Khromushin/Shutterstock, Hong Kong pavilion: © Li Wa/Shutterstock, Hong Kong tram: © Christine Gonsalves/Shutterstock, eye-glasses: © Zaichenko Olga/Shutterstock.

41. Ace of Spies: handbell: © Doug Nelson/istockphoto.com, metal: © Cekuro/Shutterstock.

43. Bletchley Park: Tommy Flowers: GNU Free Documentation License, Miriam Rothschild: © Carl Mydans/Time Life Pictures/Getty Images, Alan Turing: © Time Life Pictures/Getty Images, file folder (re-use): © Feng Yu/Shutterstock.

44. Salem Witches: wax seals: © Matt Knannlein/istockphoto.com, background: © Photodisc (RF/CD) via SJI associates, paper: © andreyutzu/Stock.xchng.

45. Listening Device: metal (re-use): © Digital Textures (RF/CD) via SJI Associates, background: © Photodisc (RF/CD) via SJI associates.

46. Poison Ring: metal texture (re-use): © Digital Textures (RF/CD) via SJI Associates, poison ring: SJI Associates/© Scholastic 2009.

47. Snake Charmer: paper (re-use): © Gregory Zamets/Stock.xchng, snake charmer: SJI Associates/© Scholastic 2009.

48. Magic Box: Burial Place of Paul Revere: © John A. Rizzo (RF)/Getty Images.

50. Heinrich Heinrichson: illustration: Cindy Salans Rosenheim/© Scholastic 2009.

51. Gertrude Ederle: Gertrude Ederle: © Ullstein Bild/The Granger Collection.

52. Annie Oakley: Annie Oakley letter to William McKinley: U.S. National Archives and Research Administration.

53. Alcatraz: Alcatraz: © John Foxx (RF)/Getty Images.

54. The Northern Race: husky: © Sergey Skleznev/istockphoto.com, Siberian husky: © Sabrina Dei Nobili/istockphoto.com, Alaskan malamute dog: © Erik Lam/istockphoto.com, Siberian husky in snow: © Debra Feinman/istockphoto.com, snow: © Sergey Chushkin/Shutterstock.

55. The Golden Fleece: Philip the Good with necklace: © Society of Antiquaries of London/Bridgeman Art Library.

56. Ghurka: illustration: Bill Sienkiewicz/© Scholastic 2009.

57. Parkour: laptop: © Louis Hall/Stock.xchng, top-secret text: © bsk/Stock.xchng, note, paper clips and tabletop: © PhotoObjects.net.

58. Navigation Sense: illustration: Ron Carboni/© Scholastic 2009, leaves: © Beata Becla/Shutterstock, ropes: © Khafizov Ivan Harisovich/Shutterstock.

59. Grace Cahill: illustration: Patty Harris/© Scholastic 2009.

61. Carnival: William Clark's Elkskin bound journal: © Cary Horton/Clark Family Collection, William Clark Papers, Missouri Historical Society Archives, background: © javarman/Shutterstock.

62. Klose's Notes: Flinders Street Station: © Lee Torrens/Shutterstock, Urquhart castle: © Stephen Finn/Shutterstock, tourist tram: © Oksana Perkins/Shutterstock, Pyramids and camel rider: © Brian Lawrence/Getty Images.

63. Ghost Ship: abstract of a stormy night sky: © Marilyn Barbone/Shutterstock, Yeti footprint: © Topical Press Agency/Getty Images, hand and dagger: © Troy Newell/Stock.xchng, Brussels sprouts: © Debbie Schiel/Stock.xchng, ghost ship (re-use): © Elizabeth Porter/Stock.xchng.

64. Mt. Rushmore: illustration: Bruce Hutchinson/© Scholastic 2009.

65. Brothers Grimm: illustration: Kent Barton/© Scholastic 2009.

67. New York Subway: illustration: Kirk Caldwell/© Scholastic 2009.

68. Grace's Hideaway: old wall corner: © Andrey Zyk/Shutterstock, burial plaque of Paul Revere: © John A. Rizzo (RF)/Getty Images, wood texture: © andreyutzu/Stock.xchng, blueprint: © Sanja Gjenero/Stock.xchng, tools, hammer, blueprints and wood shavings: © PhotoObjects.net.

70. Money: golf hole: © sculpies/Shutterstock, businessman near Learjet: © Felbert+Eickenberg/Getty Images, butler with tray of tea: © Juice Images Limited (RF)/Alamy, hand and falling money: © Tatiana Popova/Shutterstock.

71. Money: Hoover Dam: © Celso Diniz/Shutterstock, man on moon: © NASA.

403. Clue Hunter's Best Friend: alley: © kenny1/Shutterstock.

404: Walmart Card: Postmarks: © Valerie Loiseleux/istockphoto.com

407. The Underdogs: Boston skyline: © Stephen Orsillo/Shutterstock, Cathedral of Notre Dame: © Elena Elisseeva/Shutterstock.

408. The Spaz: young female: © Michael Helms via Sandy Dell.

Wave 1 Cahill Web

I Like Useless Facts: Ace of Spies: man: Public Domain.

Lucian Archives: Alana Flores report: woman: © Tom LeGoff.

I Like Useless Facts: Alcatraz: Alcatraz Island (both): © Chee-Onn Leong/Shutterstock.

CliqueMe: Amy Cahill: Back Bay, Boston: © Jorge Salcedo/istockphoto.com.

Know It All: Amy Cahill' Book Review: book: © Cherreshenka/Shutterstock, foot of statue: Adisa/Shutterstock, leather bound book: © Dorling Kindersley/Getty Images.

Adams Middle School Bulletin: Dan Cahill Ruins School Play: boy watching movie: © Jupiter Images/Photos.com (RF)/Alamy.

Mysterious Fire Kills Married Couple: apartment house in flames: © Margit Notter/AP Photo.

I Like Useless Facts: Annie Oakley: Annie Oakley letterhead: © U.S. National Archives and Research Administration, Annie Oakley: Library of Congress.

MIT Compass: Beloved Professor Dies in Fire: blackboard: © Peter Fisher/Veer, funeral wreath: © xyno6/istockphoto.com.

Krafty Kitty Collector Profile: kittens with bows: © Douglas Sherman/Shutterstock, grey kittens: © Heather Wenzel/Shutterstock, tall kittens: © Kenneth Sponsler/Shutterstock.

Lucian Archives: Benjamin Franklin' letter to the Lucian leadership: Benjamin Franklin: © Library of Congress.

The Truth Is Out There: Bermuda Triangle: Masonic seal: © Private Collection/Ken Welsh/The Bridgeman Art Library, Bermuda Triangle: NASA, Battleship USS Missouri: © U.S. Navy/Getty Images.

I Like Useless Facts: Bletchley Park: Bletchley Park: © The Francis Frith Collection/SuperStock.

I Like Useless Facts: Paris Catacombs: skulls and bones: © GA Photography/Jupiter Images.

Large Hadron Collider May Destroy the Earth: CERN exterior: © Gemma Day/Alamy.

Thompson Falls Middle School adds three new PE classes: Public Garden, Boston: © Chee-Onn Leong/Shutterstock.

Crazee Collectors Online: Samurai Swords: Japanese sword (katana): © Elena Zidkova/Shutterstock.

CliqueMe: Dan Cahill: Public Garden, Boston: © Chee-Onn Leong/Shutterstock.

Bunbury Bugle: Strongm - Flop: weightlifter: © Matthias Tunger/Stone/Getty Images.

The Truth Is Out There - Ekaterina: UFO (re-use): © Mike Agliolo/Photo Researchers, hayfield: © George Olsson/Shutterstock.

Ekataerina Archives, Howard Carter Report: Hatshepsut: © Scala/Art Resource.

I Like Useless Facts: Eskrima: men fighting with bow staffs: © Jupiter Images/Brand X (RF)/Alamy.

Cahill Son Mysteriously Disappears: teenage boy: © James Woodson/Getty Images.

I Like Useless Facts: Gertrude Ederle: Gertrude Ederle: © Library of Congress.

I Like Useless Facts: Gervais Raoul Lufbery: Lufbery with lion: © National Aviation Hall of Fame.

I Like Useless Facts: Ghurka: knife: © Henri Faure/istockphoto.com.

Gordon Klose' Blog: man (re-use): © Photodisc (RF)/ Getty Images

I Like Useless Facts: HALO: skydivers: © Darryl Leniuk/Getty Images.

Agra Times: Sky Diving Gone Wrong: panoramic view of Taj Mahal: © Luciano Mortula/Shutterstock.

CliqueMe: Hamilton Holt: football field: © corbis/Superstock.

I Like Useless Facts: Harry Houdini: Harry Houdini: © The Granger Collection.

Janus Archives: Top secret memo from Harry Houdini: Harry Houdini (re-use): © The Granger Collection.

Prominent Archaeologist and Humanitarian Dies in Tragic Fire: Teddy bear: ©cen/Shutterstock, bouquet of flowers: ©Jonathan Heger/Shutterstock, cemetery headstone: ©iofoto/Shutterstock.

CliqueMe: Ian Kabra: Oxfordshire Henley River: © Alan Copson City Pictures/Alamy.

Polo Chaos: polo: © Lynne Siler Photography/Alamy, two men running: © Peter Beavis/Getty Images.

I Like Useless Facts: Iditarod: dog team: © Pete Ryan/Getty Images.

I Like Useless Facts: Iditarod: running terrier, dog, and puppy running: © Image Source (RF)/Getty Images.

Janus Archives: Surveillance photos of Irina Spasky: President Bush: © Jonathan Ernst/Getty Images, entry gate: © John Stark/Alamy, Queen Elizabeth the II: © Angel Terry/Alamy.

Janus Archives: Surveillance photos of the Kabras: Trafalgar Square, England: © Shane Williams/istockphoto.com, docks and sailboats: © Stephen Orsillo/Shutterstock, bridge and pedestrians: © Zaporozhchenko Yury/Shutterstock, Arc de Triomphe: © James Steidl/Shutterstock.

Jonah Wizard' Blog: necklace: © stillfx/Shutterstock.

CliqueMe: Lilya Chernova: teenage girl (re-use): © Purestock(RF)/Getty Images.

Fashion and Fractions: woman wearing a mesh hat (re-use): © Image Source (RF)/Veer.

I Like Useless Facts: Loch Ness: Urquhart castle: © Stephen Finn/Shutterstock (re-use).

The Truth Is Out There: Loch Ness Monster: Urquhart castle (re-use): © Stephen Finn/Shutterstock, Loch Ness Monster: © Hulton Archive/Getty Images.

The Truth Is Out There: The Lucians: UFO (re-use): © Mike Agliolo/Photo Researchers, shadow of men: © Julian Hibbard/Getty Images.

CliqueMe: Madison Holt: Trees Nonsuch Park: Bob Turner/Alamy.

Lucian Archives: Madrigal sightings: pedestrians: © Nordicphotos/Alamy, tank and troops: © Three Lions/Getty Images.

Ekaterina Archives: Evidence of Madrigals: Angkor Wat, Cambodia: © Colman Lerner Gerardo/Shutterstock, Karnak, Egypt: © Adam Jones/Photo Researchers, Palmyra, Syria: © Georg Gerster/Photo Researchers.

I Like Useless Facts: Marie Curie: Marie Curie: © Ullstein Bild/The Granger Collection.

Mary-Todd Holt and Her Herculean Household: brownies: © Kathy Burns-Millyard/Shutterstock.

CliqueMe: Natalie Kabra: gardens: © Terry Harris/just Greece photo library (RF)/Alamy.

Guest Paralysed at Kabra Ball: Poison Involved?: ballroom: © Image Source Black (RF)/Alamy.

Blog: Natalie Kabra' Guide to the Universe: entrance to home: © ImagesEurope (RF)/Alamy.

CliqueMe: Ned Starling: teenage boy: © Image Source/Veer, beach: © Cheryl Casey/Shutterstock.

I Like Useless Facts: New York Subway: City Hall Subway station: © The New York Public Library/Art Resource.

CliqueMe: Paul Addison: boy (re-use): © Stock4B (RF)/Getty Images.

I Like Useless Facts: Poison Ring: poison ring (re-use): © Malina/Stock.xchng.

CliqueMe: Reagan Holt: Running track: © Michael Wells (RF)/Getty Images.

CliqueMe: Saladin: grass: © osvaldru/Shutterstock.

The Truth Is Out There: The Titanic: UFO (re-use): © Mike Agliolo/Photo Researchers.

Tomas Archives: Alistair Oh surveillance photos: St. Sophia in Istanbul: © Kevin H. Knuth/Shutterstock, Ankara Turkey: © Bikem Ekberzade/Alamy.

McIntyre, MacArthur, Muligan and Smood: business concept: © digitalife/Shutterstock.

I Like Useless Facts: Parkour: man doing back flip: © Ian Coble (RF)/Getty Images.

I Like Useless Facts: CERN: metal spheres: © Leo Blanchette/Shutterstock, supernova exploding: © NASA Goddard Space Flight Center (NASA-GSFC).

I Like Useless Facts: Ching Shih: body: © Candela Foto Art/Kreuziger/Getty Images, face: © Alex Mares-Manton/Getty Images paper: © Effinity Stock Photography/istockphoto.com, sword: © Candela Foto Art/Kreuziger/Getty Images.

I like Useless Facts: Famous Diamonds: Dresden Green Diamond: © ddp, Germany.

I like Useless Facts: Koh-l-noor: Koh-l-noor diamond replica: © Scott Sucher.

The Truth is out there: Hope Diamond: Hope Diamond: © Boltin Picture Library/Bridgeman Art Library.

Wave 1 Cards

Card 1: Front: surveillance camera illustration: Headcase Design/© Scholastic 2009; Back: template.

Card 2: Front: boy: James Levin/© Scholastic 2009, leather: © Digital Textures (RF/CD) via SJI Associates; Back: school line art: © Jyothi N Joshi/Big Stock Photo, hanging folders: © Christine Balderas/istockphoto.com.

Card 3: Front: catacombs drawing: SJI Associates/© Scholastic 2009; Back: template.

Card 4: Front: paper: © Slavomir Ulicny/Stock.xchng, wood background: © Oliver Gruener/Stock.xchng, paper clip: © Josep Altarriba/Stock.xchng; Back: boy: James Levin/© Scholastic 2009, leather: © Digital Textures (RF/CD) via SJI Associates.

Card 5: Front: man in glasses: © Steve Prezant/Corbis, granite texture: © Manoel Silva/Stock.xchng, wallpaper: © Digital Textures (RF/CD) via SJI Associates; Back: newspaper: © Sophie/Stock.xchng, coffee mug: © Judi Seiber/Stock.xchng, marble texture: © Photodisc (RF/CD) via SJI Associates.

Card 6: Front: Monticello drawing: Special Collections, University of Virginia Library, compass: © Sandra Caldwell/Shutterstock, pen: © Bonnie Jacobs/istockphoto.com, paper: © Max Triet/Stock.xchng; Back: graveyard illustration: Kyle Hotz/© Scholastic 2009;

Card 7: Front: Maria Marapao illustration: Kanako Damerum and Yuzuru Takasaki/© Scholastic 2009; Back: locker and books: © Rob Melnychuk/Digital Vision (RF)/Getty Images, open notebook: © Cris DeRaud/Stock.xchng, notebook: © Jeanell Norvell/istockphoto.com, books: © Volkan Ersoy/istockphoto.com, sword: © Hemera Technologies/PhotoObjects.net (RF)/Jupiter Images, ninja picture: © AJH Designs/Stockxpert, all eskrima sticks: © Gerville Hall/istockphoto.com, bolo dagger: © Allen Johnson/istockphoto.com.

Card 8: Front: man: © PhotosIndia (RF)/Getty Images, Bollywood dancers: © DreamPictures/Taxi/Getty Images, Taj Mahal: Courtesy David O'Hanlon/SJI Associates; Back: computer desktop: SJI Associates/© Scholastic 2009, man (re-use): © PhotosIndia (RF)/Getty Images.

Card 9: Front: Harry Houdini: Library of Congress via Scholastic Library; Back: line art of scale: © Stephen Stacey/Stock.xchng, notebook: © Sophie/Stock.xchng, wood: © Zsuzsanna Kili?!n/Stock.xchng.

Card 10: Front: Lufbery: National Aviation Hall of Fame, lion cub: © LMR Group (RF)/Alamy, goggles: © Titelio/Shutterstock; Back: paper & logo: SJI Associates/© Scholastic 2009.

Card 11: Front: paper: © Niels Timmer/Stock.xchng, oboe: © Stockbyte (RF)/Getty Images, piano: © jjm/Morguefile; Back: window reflection: © Samuel Rosa/Stock.xchng, oboe (re-use): © Stockbyte (RF)/Getty Images, violin: © LastClick/Stock.xchng, both horns: © Damian Searles/Stock.xchng, CDs: © Thomas Lobker/Stock.xchng, gondola: © Daniela Lenarcic/Stock.xchng.

Card 12: Front: Taj Mahal aerial view: © Yann Arthus-Bertrand/Corbis; Back: template.

Card 13: Front: Frankenstein illustration: Kent Barton/© Scholastic 2009; book: © Mikhail Lavrenov/Stockxpert, wood table: © alxm/Stockxpert; Back: template.

Card 14: Front: Marie Antoinette illustration: Craig Spearing/© Scholastic 2009, frame: © Sanja Gjenero/Stock.xchng, handmade paper: © Mátyás Huszár/Stock.xchng, easel: © Jared Tolla/Morguefile, board & paint: © Stephen Eastop/Stock.xchng, skull: © avtg/istockphoto.com; Back: template.

Card 15: Front: gray paper & telegraph paper: © Marija/Stock.xchng, Morse code paper: © Gregory Zamets/Stock.xchng, leather: © Digital Textures (RF/CD) via SJI Associates; Back: hand sending Morse code: © North Wind Picture Archives, book paper: © Roger Kirby/Stock.xchng, leather: © Digital Textures (RF/CD) via SJI Associates, wood: © Salva Barbera/Stock.xchng.

Card 16: Front: dot pattern: SJI Associates/© Scholastic 2009; Back: template.

Card 17: Front: woman: © Stockbyte (RF/CD) via SJI associates, school bus: © Sam Levan / Stock.xchng, computer desktop illustration: © Scholastic 2009; Back: template.

Card 18: Front: girl: James Levin/ © Scholastic 2009; Back: table setting: © Photodisc (RF/CD) via SJI Associates, lined-paper illustration: SJI Associates/© Scholastic 2009.

Card 19: Front: rock formation: © John Foxx /Stockbyte(RF)/Getty Images, tent: © Ali Halit Diker/Stock.xchng, three kids: James Levin/ © Scholastic 2009; Back: line illustration: Kyle Hotz/© Scholastic 2009.

Card 20: Front: boy on skateboard: © JupiterImages/Polka Dot (RF) / Alamy, rocket parts © Terry Eaton/Stock.xchng, rocket parts: © Terry Eaton/Stock.xchng; Back: template.

Card 21: Front: teen: © James Hardy/PhotoAlto (RF)/age fotostock, graffiti background: © xbauerx/Stock.xchng; Back: stack of paper: © Photodisc (RF/CD) via SJI Associates, letter and envelope: SJI Associates/© Scholastic 2009, splotches: © khz/Shutterstock, woodgrain: © Leszek Maziarz/Shutterstock.

Card 22: Front: mansion: © Wojtek Boss/Agefotostock; Back: paper & background: © Ali Farid/Stock.xchng, paper: © Sophie/Stock.xchng.

Card 23: Front: lab technician: © Jupiter Images/Creatas (RF)/Alamy, petri dish: © ImageDJ(RF)/Index Stock/photolibary.com, Clostridium tetani: © Melba Photo Agency(RF)/Index Stock/photolibary.com; Back: cell phone: © scorpion26/istockphoto.com, sticky note paper: © Sanja Gjenero/Stock.xchng.

Card 24: Front: girl: © Purestock (RF)/Getty Images, party kids: © Odilion Dimier/PhotoAlto (RF)/Getty Images, purse: © Ahmed Aboul-Seoud/Shutterstock, diamond: © Photodisc(RF)/Veer, disco: © Kathryn McCallum/Stock.xchng; Back: PDA: © Gaston Thauvin/Stock.xchng, keyboard: © Tom van Beveren/Stock.xchng, rhinestones: © Kia Abell/Stock.xchng, dress texture: © Digital Textures (RF/CD) via SJI Associates.

Card 25: Front: astronomer royal illustration: Doug Solomon/© Scholastic 2009; apple: © Photodisc (RF/CD) via SJI Associates; Back: star chart: © Nikolay Staykov/istockphoto.com, map: © Visual Language (RF/CD) via SJI Associates.

Card 26: Front & Back: bamboo texture: © Mateusz Atroszko/Stock.xchng, book: © Niels Timmer/Stock.xchng; Front: Marie Curie illustration: Kanako Damerum and Yuzuru Takasaki/© Scholastic 2009; Back: Marie Curie: The Granger Collection, lab glassware: © Zern Liew/Stock.xchng, retro thermometer: © Ula Kapala/Stock.xchng, chemistry flasks: © Jean Scheijen/Stock.xchng.

Card 27: Front: monster: © Hemera Technologies(RF)/Jupiter Images, Lochness Castle: © Diane Macdonald/Photographer's Choice(RF)/Getty Images; Back: template.

Card 28: Front: building: © Monty Rakusen/Digital Vision (RF)/Veer, mountains: © Martial Colomb/Photographer's Choice (RF)/Getty Images, flag: © Dan Shirley/Stock.xchng, French flag: © Gaston Thauvin/Stock.xchng, chewing gum: © Jason Smith/Stock.xchng, metal surface: © Deon Staffelbach/Stock.xchng; Back: template.

Card 29: Front: ship: © Gary Scott/Stock.xchng, explosion: © Jerry Pank/Stock.xchng, flags: SJI Associates/© Scholastic 2009; Back: old book: © Huan Liu/Stock.xchng, flags: SJI Associates/© Scholastic 2009, metal texture: © Craig Jewell/Stock.xchng.

Card 30: Front: man's face: © Focus Stock Fotografico/UpperCut Images (RF)/GettyImages, turban: © Jupiter Images/Brand X (RF)/Alamy, wood: © Photodisc (RF/CD) via SJI Associates; Back: template.

Card 31: Front: HALO drawing: SJI Associates/© Scholastic 2009; Back: template.

Card 32: Front: mechanical sense illustration: Drew Morrison/© Scholastic 2009; Back: template.

Card 33: Front: cat: James Levin/© Scholastic 2009, headband: SJI Associates/© Scholastic 2009, paper wall © Kiriko Shirobayashi/Taxi Japan/Getty Images, large sushi in back: © Robson Oliveira/Stock.xchng, pieces of sushi in front: © Erik Araujo/Stock.xchng, platter: © PhotoObjects/Jupiter via SJI, tabletop: © Salva Barbera/Stock.xchng, bonsai tree on right: © homero chapa/Stock.xchng, bonsai tree on left: © Claudia Meyer/Stock.xchng, bamboo: © Robson Oliveira/Stock.xchng, border: © Veer Design Essentials (RF/CD) via SJI Associates, fabric background: © Digital Textures (RF/CD) via SJI Associates; Back: inferno illustration: Kyle Hotz/© Scholastic 2009.

Card 34: Front: face: © Royalty-Free/Rubberball, body & hair: © Brand X (RF)/Veer, Harvard building: © James Lemass/Index Stock/photolibrary.com, car: © Brad Wieland/istockphoto.com, diploma: © Cheryl Graham/istockphoto.com; Back: letter and envelope: SJI Associates/© Scholastic 2009, mail stack: © Photodisc (RF/CD) via SJI Associates, Harvard logo: Harvard website via SJI Associates, leather background: © Photodisc (RF/CD) via SJI Associates.

Card 35: Front: Hope diamond: © Bolton Picture Library/Bridgeman Art Library; Back: wood tabletop: © Salva Barbera/Stock.xchng, Section 7 logo: SJI Associates/© Scholastic 2009.

Card 36: Front: passport: © Scholastic 2009; Back: passport stamp: © John Sigler/istockphoto.com, other passport stamps: SJI Associates/© Scholastic 2009.

Card 37: Front: Tavernier illustration: Douglas Smith/© Scholastic 2009, scroll: © Davide Guglielmo/Stock.xchng; Back: diamond: © Norbert Millauer/ddp, file folder: © Feng Yu/Shutterstock, ballpoint pen: © Antonio Jiménez Alonso/Stock.xchng, woodgrain: © Elvis Santana/Stock.xchng, paper clip: © Al Johnson/Stock.xchng.

Card 38: Front: tattoo illustration: Regine Gonzalez/© Scholastic 2009, man's back: © DAJ (RF)/Getty Images, alley: © Thorsten Rust/Shutterstock; Back: template

Card 39: Front: man: © Photodisc (RF)/Getty Images; Back: passport contents: SJI Associates/© Scholastic 2009; Front & Back: Section 7 logo: SJI Associates/© Scholastic 2009.

Card 40: Front: woman: © Tom Legoff/Digital Vision (RF)/Veer, trophy: © Tomasz Szkopiski/Stock.xchng, horizontal plaque (both uses): © Kenn Kiser/Morguefile, vertical plaque (both uses): © Ben Turner/Morguefile; Back: girl crying: © Steven Puetzer/Iconica/Getty Images, newspaper: © Kathryn McCallum/Stock.xchng, chess piece: © Emanuele Vezzaro/Stock.xchng.

Card 41: Front: man: © Stewart Charles Cohen/Photodisc (RF)/Getty Images, fire: © Photodisc (RF/CD) via SJI Associates, paper: © Roger Kirby/Stock.xchng, St. Basil's: © Dean Conger/Corbis; Back: paper & bulletin board: SJI Associates/© Scholastic 2009.

Card 42: Front & Back: body: © Candela Foto Art/Kreuziger/Getty Images, paper: © Effinity Stock Photography/istockphoto.com, sword: © Candela Foto Art/Kreuziger/Getty Images, wood: © Photodisc (RF/CD) via SJI Associates; Front: face: © Alex Mares-Manton/Getty Images.

Card 43: Front: Enigma machine: © LittleJoe/openstockphotography.org, paper: SJI Associates/© Scholastic 2009; Back: Bletchley Park: courtesy Matt Crypto/openstockphotography.org, foreground car: © Stefan K./Stock.xchng, car and motorcycle: © Art Explosion(RF/CD) via SJI Associates.

Card 44: Front: Salem witches illustration: Craig Spearing/© Scholastic 2009; Back: template.

Card 45: Front: pen: © Dale Eurenius/Stock.xchng, radio: © Klaus Post/Stock.xchng; Back: men in alley: © ckdj/zefa (RF)/Corbis.

Card 46: Front: fist: © Michael Schwab/Digital Vision (RF)/Getty Images, ring: © Malina/Stock.xchng; Back: rings: © Malina/Stock.xchng, vial: Index Stock (RF)/photolibrary.com, skull & crossbones: © excape25/istockphoto.com, black powder: © Daniele Musella/Morguefile, red & green powder: © Trine de Florie/Stock.xchng.

Card 47: Front: snake charmer illustration: Craig Spearing/© Scholastic 2009; Back: template.

Card 48: Front: newspaper: © Rob Byron/Shutterstock, magic box illustration: SJI Associates/© Scholastic 2009; Back: template.

Card 49: Front: boy: © Stock4B (RF)/Getty Images, fence: © Carlos Butler/Stock.xchng, Lochness countryside: © Photodisc (RF/CD) via SJI Associates; Back: computer: © Emre Nacigil/Stock.xchng, computer desktop screen: SJI Associates/© Scholastic 2009, marker: © Judi Seiber/Stock.xchng, monster (re-use): © Hemera Technologies/ PhotoObjects (RF)/Jupiter Images, castle (re-use): © Diane Macdonald/Photographer's Choice (RF)/Getty Images.

Card 50: Front: man: © Rob Lewine/Image Source (RF)/Getty Images, hands: Photodisc (RF/CD) via SJI Associates; Back: Eiffel Tower: © Alexander Hafemann/istockphoto.com, monster (re-use): © Hemera Technologies(RF)/Jupiter Images, castle (re-use): © Diane Macdonald/Photographer's Choice (RF)/Getty Images, metal texture: © Photodisc (RF/CD) via SJI Associates, receipt & graph paper: © Sophie/Stock.xchng, sticky note: © Sanja Gjenero/Stock.xchng, list paper: © Gregory Zamets/Stock.xchng.

Card 51: Front: Ederle: © AP/Wideworld, swimming cap: © Royalty-Free/Masterfile, towel: © Royalty-Free/Masterfile; Back: Ederle illustration: Doug Solomon/© Scholastic 2009, newspaper: © Greg Paris/Morguefile, teacup: © Kay Pat/Stock.xchng.

Card 52: Front: Annie Oakley: The Granger Collection, target: © Photodisc (RF/CD) via SJI Associates; Back: Kaiser: The Granger Collection, target: © Photodisc (RF/CD) via SJI Associates.

Card 53: Front: three kids: James Levin/© Scholastic 2009, Alcatraz: © John Foxx/Stockbyte (RF)/Getty Images, wood pier: © Terraxplorer/istockphoto.com, leather texture: Photodisc (RF/CD) via SJI Associates; Back: template.

Card 54: Front: map: courtesy University of Texas, mountains: © Rita Mezzela/Stock.xchng, front & left dog sled: © Visions of America (RF)/Alamy; middle dog sled: © Ingram/Superstock (RF)/Alamy; Back: template.

Card 55: Front: guy left: © Suzanne Tucker/Shutterstock, guy center, guy right, & all jackets: © Vova Pomortzeff/Shutterstock, jewelry: © Erich Lessing/Art Resource, web browser illustration: SJI Associates/© Scholastic 2009; Back: template.

Card 56: Front: comic book illustration: Bill Sienkiewicz/© Scholastic 2009; fabric texture: Digital Textures (RF/CD) via SJI Associates; Back: guard: © Blue Jean Images (RF)/Getty Images, embassy: © Hola Images (RF).

Card 57: Front: building: © Michael Mohr/PhotoAlto (RF)/Getty Images; Back: chalk board & chalk: © Piotr Lewandowski/Stock.xchng, slate: © Sophie/Stock.xchng, brick wall: © Lars Sundstrum/Stock.xchng.

Card 58: Front: main stars: © Stocktrek Images (RF)/Getty Images, background stars: © Shaun Lowe/istockphoto.com, Milky Way: © Stephan Hoerold/istockphoto.com, iceberg, ocean, & sky: © Photodisc (RF/CD) via SJI Associates; Back: brown background: Digital Textures (RF/CD) via SJI Associates constellations illustration: SJI Associates/© Scholastic 2009.

Card 59: Front: plane and landscape: © Morocco Flowers/Index Stock/photolibrary.com, young Grace: courtesy Private Collection, flight jumpsuit: © Colin Anderson/Blend Images (RF)/Getty Images, map: © Visual Language (RF/CD) via SJI Associates; Back: bedroom: SJI Associates/© Scholastic 2009, plane and landscape (re-use): © Morocco Flowers/Index Stock/photolibrary.com, young Grace (re-use): courtesy Private Collection, flight jumpsuit (re-use): © Colin Anderson/Blend Images (RF)/Getty Images.

Card 60: Front: X-ray: © Photodisc (RF/CD) via SJI Associates, chip: © Sam Radion/Stock.xchng; Back: template.

Card 61: Front: carnival illustration: Robert Hunt/© Scholastic 2009; frame: © Antique Frames Collection (RF/CD) via SJI Associates; Back: template.

Card 62: Front: dashboard & trees: © Garann Rose Means/Stock.xchng, clouds: © Photodisc (RF/CD) via SJI Associates, road sign: © Elvis Santana/Stock.xchng, cow: © Gary Scott/Stock.xchng, scattered papers: SJI Associates/© Scholastic 2009; Back: paper: SJI Associates/© Scholastic 2009.

Card 63: Front: ghost ship: © Elizabeth Porter/Stock.xchng, stormy sky: © Simona Dumitru/Stock.xchng, sail: © Waylett21/Stock.xchng, stormy water: © Dani Simmonds/Morguefile; Back: template.

Card 64: Front: Mt. Rushmore: © Visions of America/Joe Sohm (RF)/Getty Images, letters: © Nauris Mozolevs/Stock.xchng, postcard: © Cecilia Picco/Stock.xchng; Back: stamp: US Postal Service, postcard: © Cecilia Picco/Stock.xchng.

Card 65: Front: Rumpelstiltskin illustration: Kent Barton/© Scholastic 2009; book: © Sophie/Stock.xchng, lined paper: SJI Associates/© Scholastic 2009, wood table: © Oksana Struk/istockphoto.com; Back: brown paper: © Roger Kirby/Stock.xchng, alchemist symbols: Public Domain.

Card 66: Front: brush: © Judi Seiber/Stock.xchng, file folder: © Feng Yu/Shutterstock, PDA: SJI Associates/© Scholastic 2009; Back: template.

Card 67: Front: subway map: 1939 New York City Subway Map courtesy of New York Transit Museum and used with permission; Back: template.

Card 68: Front: hideaway illustration: Sophie Kittredge/© Scholastic 2009; wood: © Dani Simmonds/Stock.xchng; Back: template.

Card 69: Front: coin edge: © Duncan Walker/istockphoto.com, Roman face: © Leah-Anne Thompson/istockphoto.com; Back: template.

Card 70: Front: stack of bills: © Christine Balderas/istockphoto.com; Back: template.

Card 71: Front: gold bar: © Sebastian Kaulitzki/istockphoto.com; Back: template.

Card 72: Front: family crests: SJI Associates/© Scholastic 2009, sphere: © Mahmoud Hafez/istockphoto.com; Back: template.

Card 73: Front: blue energy: © Duncan Walker/istockphoto.com, blue grid: SJI Associates/© Scholastic 2009; Back: template.

Card 400: Bookworm with attitude: Front: Times Square, New York: © Alan Schein Photography/Corbis; Back: template.

Card 401: The Wannabe Ninja: Front: Red Fort and Palace, India: © John Henry Claude Wilson/Robert Harding World Imagery/Corbis; Back: template.

Card 402: The Pint-Sized Assassin: Front: Sydney Opera House, Australia: © R. Wallace/Stock Photos /zefa/Corbis; Back: template.

Card 403: Clue Hunter's Best Friend: Front: Westminster Bridge, England: © John Miller/Robert Harding World Imagery/Corbis; Back: template.

Card 404: Spy Kit: London reflection in Thames River: © Ant Clausen/Shutterstock, Back: template.

Card 405: Surveillance: Gare De Lyon train station: © Comstock(RF)/Jupiter Images, Back: template.

Card 406: Agent Training: Big Ben, London: © photogl/Shutterstock, Back: template.

Card 407: The Underdogs: Independence Hall, Philadelphia: © Racheal Grazias/Shutterstock, Back: template.

Card 408: The Spaz: © Scholastic 2009, Back: template.

Card 409: Spy Training: London reflection in Thames River: © Ant Clausen/Shutterstock, Back: template.

Card 413: Ninja Boy: Red Fort and Palace, India: © John Henry Claude Wilson/Robert Harding World Imagery/Corbis, Back: template.

Card 414: The Pup: Westminster Bridge, England: © John Miller/Robert Harding World Imagery/Corbis, Back: template.

Card 415: The Smallest Assassin: Sydney Opera House, Australia: © R. Wallace/Stock Photos /zefa/Corbis, Back: template.

Branch Home Pages

Ekaterina Branch: King Tut funeral mask: © Egyptian National Museum/the Bridgeman Art Library, liquid in beaker: © Photos.com (RF)/Jupiter Images, blue calculator: © Babusi Octavian Florentin/Shutterstock.

Janus Branch: Leonardo da Vinci's Vitruvian Man: © Galleria dell' Accademia/The Bridgeman Art Library, painting of peasants on boat: © Christie's Images/Corbis, drawing of wedding bells: © Jennifer Johnson/Shutterstock, two white napkins: © Mark Poprocki/Shutterstock.

Lucian Branch: blackbird aircraft: © Purestock (RF)/Getty Images, painting of Napoleon: © The Granger Collection, motorbike and sidecar: © Library of Congress.

Tomas Branch: astronaut and space shuttle: © Pam Francis/Getty Images, motorbike and sidecar: © Olivier Renck/Getty Images.

Cahill Branch: Leonardo da Vinci's Vitruvian Man (re-use): © Galleria dell' Accademia/The Bridgeman Art Library, painting of Napoleon Bonaparte on horse (re-use): © The Granger Collection, New York, astronaut in front of space shuttle (re-use): © Pam Francis/Getty Images, astronaut in front of space shuttle (re-use): © Pam Francis/Getty Images, Annie Oakley (re-use): © Library of Congress.

Family Letterheads

Cahill 1600s: leather background: © Digital Textures (RF/CD) via SJI Associates, leather background 2: © Photodisc (RF/CD) via SJI Associates, paper: © Jan Flaska/Stock.xchng.

Lucian 1600s: wax seal: © Matthew Knannlein/istockphoto.com, inked backgrounds: © Photodisc (RF/CD) via SJI Associates, paper: © andreyutzu/Stock.xchng.

Lucian 1800s: leather background: © Digital Textures (RF/CD) via SJI Associates, paper: © Julian Leandro Irusta/Stock.xchng.

Ekaterina 1800s: wood background: © Salva Barbera/Stock.xchng, wood background 2: © Photodisc (RF/CD) via SJI Associates, paper: © Robert Aichinger/Stock.xchng, letter graphic: "Machinery and Mechanical Devices", by William Rowe, Dover Books, page 45.

Ekaterina Contemporary: metal backgrounds: © Photodisc (RF/CD) via SJI Associates, paper: © Digital Textures (RF/CD) via SJI Associates.

Janus 1600s: marble background: © Photodisc (RF/CD) via SJI Associates, marble background 2: © Ali Farid/Stock.xchng, paper: © Sophie/Stock.xchng.

Wave 2 Cards:

Card 74: Front: woman: James Levin/© Scholastic 2009, paper: © spekulator/stock.xchng, corkboard: © Cris DeRaud/stock.xchng, thumb tacks: © Hannah Boettcher/stock.xchng; Back: picture of child: © Andrew Zimmerman, Red Square: © Lukyanov Mikhail/Shutterstock, photo paper: © Slavomir Ulicny/stock.xchng, dart: © Veer, lipstick: © Veer, poison vials: © PhotoObjects/Jupiter via SJI Associates, apple: © Photodisc (RF/CD) vis SJI Associates, glasses: © Photodisc (RF/CD) via SJI Associates, ant: © Photodisc (RF/CD) vis SJI Associates, KGB Medal: © dmitry poliansky/stock.xchng, lens: © PhotoObjects/Jupiter via SJI Associates, shutter release: © PhotoObjects/Jupiter via SJI Associates, metal case: © PhotoObjects/Jupiter via SJI Associates, needle: © PhotoObjects/Jupiter via SJI Associates, globe: © PhotoObjects/Jupiter via SJI Associates.

Card 75: Front: book: SJI Associates/© Scholastic 2009, desert dune: © Alessio Ponti/Shutterstock, Cairo: © Daryl Benson/Getty Images, camel: © irabel8/Shutterstock, pattern: © Yali Shi/stock.xchng, postcard: sand: © Silvia Cosimini/stock.xchng; © Slavomir Ulicny/stock.xchng; Back: book: SJI Associates/© Scholastic 2009, scenic of boats: © National Geographic Society, sand: © Silvia Cosimini/stock.xchng.

Card 78: Front: Sakhet statue: © Erich Lessing/Art Resource, room: © Matin Dadfar/stock.xchng; Back: woman running illustration: Kyle Hotz/© Scholastic 2009.

Card 79: Front: David Livingstone illustration: Bruce Hutchinson/© Scholastic 2009, paper: SJI Associates/© Scholastic 2009, globe: © PhotoObjects/Jupiter via SJI Associates, Front: hat: © PhotoObjects/Jupiter via SJI Associates; Back: David Livingstone illustration (re-use): Bruce Hutchinson/© Scholastic 2009, bottle: © PhotoObjects/Jupiter via SJI Associates, Victoria Falls: © Sara Correia/Stock.xchng.

Card 80: Front: billboard: © Judith Collins (RF) /Alamy, teen: James Levin/© Scholastic 2009, lettering: © Scholastic 2009; Back: letter: © Scholastic 2009.

Card 81: Front: director: © Joshua Ets-Hokin (RF) /Getty Images, clapboard: SJI Associates/© Scholastic 2009; Back: storyboard illustration: Andres Vera Martinez/© Scholastic 2009, corkboard: SJI Associates/© Scholastic 2009.

Card 82: Front: woman with harp illustration: Anna and Elena Balbusso/ © Scholastic 2009; Back: paper & inkwell: © akva/Shutterstock, music sheet: © Scholastic 2009.

Card 83: Front: Henry Morton Stanley: © Hulton Archive/Getty Images, binoculars: © PhotoObjects/Jupiter via SJI Associates, case: © PhotoObjects/Jupiter via SJI Associates, wood: © Craig Jewell/stock.xchng; Back: owl & border: © Art Explosion (RF/CD) via SJI Associates.

Card 84: Front: Neuschwanstein Castle: © Robert Harding/Digital Vision (RF) / Getty Images; Back: clipboard: © Photodisc (RF/CD) via SJI Associates, crown: courtesy Dover Publications, woodgrain: © Oksana Struk / istockphoto.com.

Card 86: Front: bookcase: © Image Source (RF)/Jupiter Images, brass plaque: © Stockxpert, globe: © PhotoDisc (CD/RF) via SJI Associates; Back: template.

Card 87: Front: lake: © Andrew Lincolne/Stock.xchng, spy pigeon: © Deutsches Museum, goggles, SJI Associates/ © Scholastic 2009; Back: template.

Card 88: Front: wood: © Oliver Gruener/Stock.xchng, abandoned house: © Paul Edmonton/Getty Images; Back: abandoned house: © Paul Edmonton/Getty Images.

Card 89: Front: red backgroud: © Andrew Beierle/stock.xchng, ink spills: © despo P./stock.xchng, paper: © Jan Flaska/stock.xchng; Back: red background (re-use): © Andrew Beierle/stock.xchng.

Card 90: Front: ID badge: © Scholastic 2009, man: James Levin/© Scholastic 2009; Back: boardroom: © Abdulhamid Fadhly/Stock.xchng, laptop: © ArchMan/Shutterstock.

Card 92: Front: Simon Bolivar: © Hulton Archive/Getty Images, plaque: © Marc Dietrich/Shutterstock; Back: Pantheon: © Marion Kaplan/Alamy.

Card 94: Front: Grand Duchess Anastasia: Library of Congress; Back: paper: © Effinity Stock Photography / istockphoto.com, bird crest: public domain, fingerprints blood: © Scholastic 2009, paper strip with message: © Marija/Stock.xchng.

Card 96: Front: freezer with box: © Hisham Ibrahim (RF)/Alamy, package burrito: © Iwona Grodzka/Shutterstock, man: James Levin/© Scholastic 2009; Back: children: courtesy David Jacobs Photography, wood: © Salva Barbera/Stock.xchng.

Card 97: Front: girl: © Grapheast (RF)/Alamy, robot head: © PhotoObjects/Jupiter via SJI Associates, wires from robot head: © PhotoObjects/Jupiter via SJI Associates, wires and details of robot body: © PhotoObjects/Jupiter via SJI Associates, needlenose pliers: © PhotoObjects/Jupiter via SJI Associates, spools of wire and solder: © PhotoObjects/Jupiter via SJI Associates, cables 1 & 2: © PhotoObjects/Jupiter via SJI Associates, broken electronics on bench: © PhotoObjects/Jupiter via SJI Associates, circuit board nameplate: © PhotoObjects/Jupiter via SJI Associates, robot body: © Michal Zacharzewski/stock.xchng, wires and details of robot body: © Jonathan Beauchamp/stock.xchng, wires and details of robot body: © Gerla Brakkee/stock.xchng, wires and details of robot body: © Maciej Michal Mikolaj Satchowiak/stock.xchng, wires and details of robot body: © lily rosen/stock.xchng, screwdriver: © owais khan/stock.xchng, bench: © Laser/stock.xchng, background board with hanging tools: © Thom W/stock.xchng; Back: robot dog illustration: Headcase Design / © Scholastic 2009.

Card 98: Front: Edison Illustration: Kanako Damerum and Yuzuru Takasaki/© Scholastic 2009, background: © Mateusz Atroszko/stock.xchng, book: © Niels Timmer/stock.xchng; Back: background: © Mateusz Atroszko/stock.xchng, book: © Niels Timmer/stock.xchng, Edison (Figure 1) & lightbulb: U.S. Department of the Interior, National Park Service, Edison National Historic Site via Scholastic Library, illustration (Figure 2): © Eric Westbrook/Stock Illustration (RF)/Getty Images.

Card 99: Front: woman with sundial illustration: Anna and Elena Balbusso/© Scholastic 2009; Back: candlestick holder & letter opener: © PhotoObjects /Jupiter via SJI Associates, tabletop: © Kriss Szkurlatowski/stock.xchng, paper: © Cris DeRaud/stock.xchng.

Card 101: Front: helicopter: © Stephen Power (RF)/Alamy, Cairo: © Comstock Images (RF) /Jupiter Images; Back: template.

Card 102: Front: boat illustration: Bill Graham/© Scholastic 2009, room: © weatherbox/stock.xchng, inside computer: © Wayne C./stock.xchng, technical drawing: © sanja gjenero/stock.xchng, Victoria Falls: © Sara Correia/stock.xchng, gears: © Jan Roger Johannesen/stock.xchng; Back: template.

Card 106: Front: Tesla illustration: Kanako Damerum and Yuzuru Takasaki / © Scholastic 2009, circuit board: © iOfoto/Cutcaster, lighbulb: © PhotoDisc (CD/RF) via Scholastic Library, book: © Niels Timmer / Stock.xchng, bamboo texture: © Mateusz Atroszko / Stock.xchng, Back: dagger: © Olemac/Shutterstock, paper: © Igor Bliznyuk/Shutterstock.

Card 107: Front: woman: © Oleksiy Maksymenko (RF)/Alamy, passport stamp: © Scholastic 2009; Back: pole vaulter stamp: © raclro/istockphoto.com, athlete silhouette: © Nebojsa I/Shutterstock, award: © Glen Jones/Shutterstock, medal and color ribbon: © akva/Shutterstock, marble: © PhotoDisc (CD/RF) via SJI Associates.

Card 108: Front: paper: © Stephen Rees/Cutcaster, starfish: © Desislava Dimitrova/Cutcaster, beach: © SV Lumagraphica/Cutcaster; Back: template.

Card 109: Front: airplanes: © Alloy Photography (RF) /Veer, lemur logo: Charice Silverman/© Scholastic 2009; Back: template.

Card 111: Front: Anak Krakatau volcano: © Ed Wray/AP Photo; Back: inferno illustration: Kyle Hotz / © Scholastic 2009.

Card 112: Front: badge: © Marc Dietrich/Shutterstock, girl: James Levin/© Scholastic 2009, spoon: © Alexander Kalina/Shutterstock, crown: © Art Explosion (CD/RF)/via Scholastic; Back: PDA (re-use): © Gaston Thauvin/Stock.xchng, keyboard (re-use): © Tom van Beveren/Stock.xchng.

Card 113: Front: cheerleader: © Photodisc (RF)/Veer, football players: © Digital Vision (RF)/Veer, football field: © Darrin Klimek (RF) / Getty Images, crowd: © Cezar Perelles/Stock.xchng, megaphone: © Photodisc (CD/RF) via SJI, pompoms: © Photodisc (CD/RF) via SJI; Back: cheerleader: © Photodisc (RF) /Veer, building: © Idea 22/Stock.xchng.

Card 114: Front: stamp background: © Flavia Morlachetti/Shutterstock, illustration: Laszlo Kubinyi/ © Scholastic 2009; Back: wood: © Oksana Struk / istockphoto.com, letterhead: SJI Associates/© Scholastic 2009, paper: © Julian Leandro Irusta/stock.xchng, check: SJI Associates/© Scholastic 2009, borders on check: © Graphic frames.

Card 115: Front: illustration: Anna and Elena Balbusso/© Scholastic 2009; Back: red satin background: © Alexpi/Shutterstock, dagger: © The Board of trustees of Armouries/Heritage-Images/Image Works.

Card 116: Front: landscape: © slowfish/Shutterstock, jet: © Neil Gould/stock.xchng, sign: © PhotoObjects/Jupiter via SJI Associates, jackrabbit: © Don Schaeffer/stock.xchng, bolt: © Digital Textures (CD/RF) via SJI Associates; Back: template.

Card 117: Front: Eiffel tower: © AbleStock.com (RF) /Jupiter Images; Back: Statue of Liberty: © Tetra Images (RF) / Jupiter Images.

Card 118: Front: gold bars: © Image Source (RF)/PunchStock, eye: © Craig Jewell/stock.xchng, metal texture: © elvis santana/stock.xchng, microphone: © PhotoObjects/Jupiter via SJI Associates, camera: © PhotoObjects/Jupiter via SJI Associates, door: © PhotoObjects/Jupiter via SJI Associates, gate: © PhotoObjects/Jupiter via SJI Associates, 3 device panels: © PhotoObjects/Jupiter via SJI Associates, bank vault: © Radius Images (RF)/Alamy; Back: metal (re-use): © elvis santana/stock.xchng.

Card 119: Front: hand & PDA: © Kit Sen Chin/istockphoto.com, PDA keypad: © John evans/Stock.xchng, airport board: © Blade Kostas/istockphoto.com, interior airport: © altrendo images/Getty Images; Back: template.

Card 121: Front: Napoleon's map: © Bridgeman Art Library, wax seal: SJI Associates / © Scholastic 2009; Back: template.

Card 122: Front: man kicking ball: © RubberBall (RF) /Alamy, soccer ball: © PhotoObjects/Jupiter via SJI Associates, stadium crowd: © Cezar Perelles/stock.xchng, camouflage background: © Digital Textures (CD/RF) via SJI Associates; Back: soccer ball (re-use): © PhotoObjects/Jupiter via SJI Associates, shoe: © Corbis Photography (RF)/Veer.

Card 123: Front: girl: James Levin/© Scholastic 2009, medallion: © PhotoObjects/Jupiter via SJI Associates, snow scene: © jede hoog/Stock.xchng; Back: weights: © PhotoObjects/Jupiter via SJI Associates, ballet shoes: © esilenna/stock.xchng, hand gripper: © takis kolokotronis/stock.xchng.

Card 124: Front: man with sword illustration: Anna and Elena Balbusso / © Scholastic 2009; Back: compass: Musee National de la Renaissance, Ecouen, France/Giraudon/The Bridgeman Art Library International.

Card 125: Front: comic book illustration: Miracle Brothers/ © Scholastic 2009, comic book background: SJI Associates / © Scholastic 2009, leather background: © Perkus/Shutterstock; Back: paper & wood: © magicinfoto/Shutterstock, stagecoach: © art explosion clip art.

Card 127: Front: Mt Fuji: © Jon Arnold Images Ltd/Alamy, isolated sign: © XAOC/Shutterstock, ice pavilion: © syagci/istockphoto.com; Back: template.

Card 129: Front: wall art: © Art Explosion & © Illustrator CS3 clip art, man: © Elena Slastnova/istockphoto.com, tattooing: © Dmitriy Kalinin/istockphoto.com; Back: Victoria Falls: © James Scully/istockphoto.com, woman: © Trinette Reed (RF) /Getty Images.

Card 130: Front: building: © Frederic Cirou (RF)/Getty Images, climber: © Image Source (RF)/Getty Images, streets and building tops: © Bertrand Demee/Getty Images; Back: template.

Card 132: Front: portrait of Abigail Adams: © Stock Montage /Getty Images, bronze plate: © David Stern/stock.xchng, flashlight: © Andrzej Pobiedzinski/stock.xchng, hand: © PhotoObjects/Jupiter via SJI Associates; Back: letter opener: © Pattie Steib/istockphoto.com, paper: © digitalife/Shutterstock, wood: © Gord Horne/istockphoto.com.

Card 133: Front: woman: James Levin / © Scholastic 2009, stone wall:© Stefan Vasilev/Stock.xchng, paper: © Jamie Woods/Stock.xchng, ivy: © PhotoDisc (CD/RF) via SJI Associates; Back: checks: SJI Associates / © Scholastic 2009, wood: © Oliver Gruener/Stock.xchng.

Card 135: Front: ghost town: © VisionsofAmerica (RF) /Getty Images, figurine, phone, fish bowl, & tv set © Photodisc (CD/RF) via SJI Associates; Back: figurine, phone, fish bowl, tv set & jacks: © Photodisc (CD/RF) via SJI Associates.

Card 136: Front: ground: © Photodisc (CD/RF) via SJI Associates, goggles: SJI Associates / © Scholastic 2009; Back: men: © Image Source/Getty Images & © James Lauritz /Getty Images.

Card 137: Front: paper: © marija/Stock.xchng, footprint: © Angela Farley/Shutterstock, Massachusetts seal: SJI Associates / © Scholastic 2009, border: © Photodisc (RF/CD) via SJI Associates, sticky note: © Sanja Gjenero/Stock.xchng; Back: template.

Card 138: Front: nail polish: © Liz Bogus/Stock.xchng, shelves & nail polish © PhotoObjects/Jupiter via SJI Associates, hand: © George Doyle (RF) /Getty Images, shelves: © PhotoObjects/Jupiter via SJI Associates; Back: template.

Card 140: Front: cat: James Levin/© Scholastic 2009, room interior: © Photodisc (CD/RF) via SJI Associates, metal texture: © Digital Textures (CD/RF) via SJI Associates, fan: © Hugo Humberto Plácido da Silva/Stock.xchng, screw: © sanja gjenero/Stock.xchng, grate, booties, belt, lens & headset: © PhotoObjects/Jupiter via SJI Associates; Back: template.

Card 417: The Shadow: Front: boy and girl: James Levin/© Scholastic 2009,Venice: © Aliona Bloshchynska/Shutterstock, Back: template.

Card 419: Librarian in Training: Front: girl: James Levin/© Scholastic 2009, Tokyo (section 1): © Iain Masterson/Alamy; Back: template.

Card 420: Tokyo Dan: Front: boy: James Levin/© Scholastic 2009, office Tokyo (section 2): © Iain Masterson/Alamy; Back: template.

Card 421: The Unreliable Uncle: Front: man: James Levin/© Scholastic 2009, Tokyo (section 3): © Iain Masterson/Alamy; Back: template.

Card 422: Arctic Holt: Front: boy: James Levin/© Scholastic 2009, hat: © Karkas/Shutterstock, polar bears: © Tom Brakefield (RF) /Getty Images.

Card 424: Ninja Dweeb: Front: boy: James Levin/© Scholastic 2009, Red Fort: © John Henry Claude Wilson/Corbis; Back: template.

Card 425: The Secret Weapon: Front: girl: James Levin/© Scholastic 2009, Times Square: © Alan Schein Photography/Corbis; Back: template.