Amy Cahill is cracking open the Cahill vault to reveal the family’s most shocking secrets. Introducing The Cahill Files, a series of print and digital adventures from the world of The 39 Clues.
Each Cahill Files story unlocks an exclusive card and medal!
Available in hardcover
Available for the first time in print, Spymasters contains three Cahill Files shorts originally published as e-books: The Submarine Job, The Redcoat Chase, and The Houdini Escape. Flee alongside a young Cahill as Washington burns, unlock Harry Houdini's magic, and stow away with young Fiske Cahill on a desperate mission that could cost his life. Venture into the vault if you dare but don't say we didn't warn you.
Operation Trinity is the story of the most coveted work of art in the world, a masterpiece that has been the target of a record seven theft attempts. The adventure jumps from the first attack on the masterpiece to WWII and young Grace Cahill's desperate bid to save it from the Nazis. The final story tracks Ian and Natalie Kabra's first solo mission - and the searing betrayal that nearly costs them everything.
The year is 1914 and war is raging in Europe. Eager to win glory for the Lucian branch, sixteen-year-old Rupert Davenport (Ian Kabra's ancestor) sneaks off to France to join the fighting. But the reality of battle is unlike anything Rupert imagined. Even if he survives the bullets and explosions, he'll have to face an even deadlier threat: the Vespers—the Cahill family's rivals who are plotting a dangerous scheme behind enemy lines.
Yet just when Rupert's about to lose hope, Christmas Eve arrives and Rupert witnesses something that changes everything he thought he knew about war . . . and his own family. Is it a holiday miracle? Or a twisted game designed to destroy the Cahills?
Bonus Content!
- An excerpt from Infinity Ring Book One: A Mutiny in Time, a new time travel adventure series from the creators of The 39 Clues.

