The Bletchley Riddle (Hardcover)

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A stunning collaboration between award-winning and bestselling authors Ruta Sepetys and Steve Sheinkin, this middle grade historical adventure follows two siblings at Bletchley Park, the home of WWII codebreakers, as they try to unravel a mystery surrounding their mother’s disappearance.

Remember, you are bound by the Official Secrets Act…

Summer, 1940. Nineteen-year-old Jakob Novis and his quirky younger sister Lizzie share a love of riddles and puzzles. And now they’re living inside of one. The quarrelsome siblings find themselves amidst one of the greatest secrets of World War II—Britain’s eccentric codebreaking factory at Bletchley Park. As Jakob joins Bletchley’s top minds to crack the Nazi's Enigma cipher, fourteen-year-old Lizzie embarks on a mission to solve the mysterious disappearance of their mother.

The Battle of Britain rages and Hitler’s invasion creeps closer. And at the same time, baffling messages and codes arrive on their doorstep while a menacing inspector lurks outside the gates of the Bletchley mansion. Are the messages truly for them, or are they a trap? Could the riddles of Enigma and their mother's disappearance be somehow connected? Jakob and Lizzie must find a way to work together as they race to decipher clues which unravel a shocking puzzle that presents the ultimate challenge: How long must a secret be kept?

About the Author

Ruta Sepetys ( is an internationally acclaimed, #1 New York Times bestselling author of historical fiction published in over sixty countries and forty languages. Her novels Between Shades of Gray, Out of the Easy, Salt to the Sea, The Fountains of Silence, and I Must Betray You have won or been shortlisted for more than forty book prizes, and are included on more than sixty state award lists. Between Shades of Gray was adapted into a graphic novel, and the film Ashes in the Snow, and her other novels are currently in development for TV and film. She is also the author of You: The Story. A Winner of the Carnegie Medal, Ruta is passionate about the power of history and literature to foster global awareness and connectivity. She has presented to NATO, to the European Parliament, in the United States Capitol, and at embassies worldwide. Ruta was born and raised in Michigan and now lives with her family in Nashville, Tennessee. Follow her on Twitter and Instagram @RutaSepetys, and on Facebook at

Steve Sheinkin is the acclaimed author of fast-paced, cinematic nonfiction histories, including Impossible Escape, Fallout, Undefeated, Born to Fly, The Port Chicago 50, and Bomb. His accolades include a Newbery Honor, three Boston Globe–Horn Book Awards, a Sibert Medal and Honor, and three National Book Award finalist honors. He lives in Saratoga Springs, New York, with his wife and two children. He can be found online at Follow him on Twitter @SteveSheinkin and on Facebook at

Praise For…

"Break out your Enigma machines! Sepetys and Sheinkin have written a thrilling World War II code-breaking adventure filled with ciphers, secrets, and spies."—Alan Gratz, New York Times bestselling author of Refugee

"Brilliant! A seamless collaboration produces a genius tale with incredible historical twists! I loved reading this book."—Kimberly Brubaker Bradley, author of The Night War

“I loved every single page of this book. The Bletchley Riddle is exquisite historical storytelling! I only wish I could read it again for the very first time.”—Jennifer A. Nielsen, #1 New York Times Bestselling Author

“Such a unique and amazing book! Sheinkin and Sepetys have layered impeccable research into a very readable, engaging story. I'm so happy that we will have this amazing adventure historical available for young readers. They clamor for books like this!"—Rae Ann Parker, Director of Books for Young Readers, Parnassus Books in Nashville

Product Details
ISBN: 9780593527542
ISBN-10: 0593527542
Publisher: Viking Books for Young Readers
Publication Date: October 8th, 2024
Pages: 400
Language: English