Unbreakable: The Spies Who Cracked the Nazis' Secret Code

Unbreakable is the edge-of-your seat true story of the codebreakers, spies, and navy fighters who helped defeat the Nazis and turned the tide of World War II―perfect for fans of The Imitation Game, Alan Gratz, and Jennifer Nielsen.

"A thrilling adventure of intrigue and daring worthy of the best James Bond stories." ―James Ponti, New York Times best-selling author of City SpiesAs the Germans waged a brutal war across Europe, details of every Nazi plan, every attack, every troop movement were sent over radio.

But to the Allied troops listening in―and they were always listening―the crucial messages sounded like gibberish.

The communications were encoded with a powerful cipher, making all information utterly inaccessible .

.

unless you could unlock the key to the secret code behind the German’\s powerful Enigma machine.