
The Bletchley Riddle
Penguin Young Readers Group · Paperback · October 28, 2025
NEW YORK TIMES BESTSELLER • This thrilling WWII mystery—a collaboration between award-winning and bestselling authors Ruta Sepetys and Steve Sheinkin—is now in paperback!
We earn from qualifying purchases.
- Who it’s for
- Codebreaking intrigue and a family mystery meet in a layered World War II adventure.
- Genres
- Wars & Military History, Mysteries & Detective Stories, Spy Stories
- Published
- Penguin Young Readers Group, October 28, 2025
Nearest books
Matched by what the books are about, then ordered by what their readers also loved.
Golden GateJames Ponti56% matchShares Mysteries & Detective Stories
WestfallenAnn Brashares, Ben Brashares61% matchShares Wars & Military History
Into the FireAnn Brashares, Ben Brashares59% matchShares Wars & Military History
Safiyyah's WarHiba Noor Khan54% match
The Night WarKimberly Brubaker Bradley56% match
When Hitler Stole Pink RabbitJudith Kerr54% match
Resistance (scholastic Gold)Jennifer A. Nielsen58% match
The War That Saved My LifeKimberly Brubaker Bradley57% matchShares Wars & Military History
For older readers: Darkly, The Berlin Letters, Bluebird
Start with three books, and this one can be the first.
Members get a new edition every morning: a route out from their books to essays, research and talks, with the reason for each.
Start with this bookAbout this book
NEW YORK TIMES BESTSELLER • This thrilling WWII mystery—a collaboration between award-winning and bestselling authors Ruta Sepetys and Steve Sheinkin—is now in paperback! "Break out your Enigma machines!
Continue reading
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 Five starred reviews • ALA Notable Book 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 amid 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 that unravel a shocking puzzle that presents the ultimate challenge: How long must a secret be kept?
Secrets in Code
Codebreaking intrigue and a family mystery meet in a layered World War II adventure.
Come here for
- Cipher puzzles and wartime secrets
- A mystery that pairs codebreaking with a family disappearance
Expect
- Riddles, spies, and Bletchley Park
- A tense race to decipher clues
Where it sits
| Spy Stories | 74% |
|---|---|
| Mysteries & Detective Stories | 57% |
| Wars & Military History | 40% |
Percentages are BookFrontier’s reading of the book.
Publisher categories
- Wars & Military History
- Mysteries & Detective Stories
- Spy Stories
- Authors
- Ruta Sepetys, Steve Sheinkin
- Publisher
- Penguin Young Readers Group
- Published
- October 28, 2025
- Format
- Paperback
- Reading lane
- Wars & Military History