Depth charge

By M. Zachary Sherman

Subjects: Spies, fiction, United States, Juvenile fiction, Fiction, World War, 1939-1945, United states, fiction, War stories, Spy stories, Ciphers, Children's fiction, United States. Office of Strategic Services, World War (1939-1945) fast (OCoLC)fst01180924, Enigma cipher system, World war, 1939-1945, fiction, Spies

Description: Lieutenant Aaron Donovan of the Office of Strategic Services embarks on a dangerous mission to get aboard a damaged German submarine and obtain the newest codebooks for the German Enigma cipher machine--will the mission be successful or end in disaster?