Enigma
Cryptography
Secret service
Fiction, thrillers, espionage
World war, 1939-1945, fiction
Fiction, war & military
Great britain, fiction
Fiction, mystery & detective, general
World War, 1939-1945
Fiction
England 1943. Much of the infamous Nazi Enigma code has been cracked. But Shark, the impenetrable operational cipher used by Nazi U-boats, has masked the Germans' movements, allowing them to destroy a record number of Allied vessels. Feeling that the lives of Allied sailors are in their hands, a top…
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