Ruta Sepetys, #1 New York Times bestselling author, and Steve Sheinkin, Newbery Honor-winning author, have co-written "The Bletchley Riddle."
"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."
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"The Bletchley Riddle" from Amazon.com: https://amzn.to/3Z1gb3x
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