Unbreakable / Barone, Rebecca E. F.

"A nonfiction manuscript for young readers about a group of Allied spies and codebreakers that cracked the Nazis's infamous cypher, allowing them to read secret military messages and turn the tide of World War II"--Provided by publisher.

Recounts the true story of how a team of Allied codebreakers, spies, and Navy soldiers broke the Nazi code and helped tip the scales in favor of the Allies during World War II. Profiles the different individuals involved and their contributions. Includes an epilogue, photographs, and a timeline.