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"Rejacketed reissue. It is March 1943 and inside Britain's codebreaking centre, Bletchley Park, the cryptanalysts are facing their worst nightmare- Nazi Germany's U-boats have unexpectedly changed their Enigma cipher and the Battle of the Atlantic suddenly hangs in the balance. In a desperate attempt to save the situation, the authorities turn to Tom Jericho, a brilliant young mathematician and codebreaker, presently on sick-leave in Cambridge. What follows is a frantic race to crack the U-boat code. But, unknown to his colleagues, Jericho also has another equally baffling enigma of his own to unravel- the woman he loves has disappeared and he suspects there may a spy at Bletchley... Steeped in the atmosphere of wartime England, based around an actual event, Enigma is a thriller of genius- a compelling mystery of codes and codebreaking, love and betrayal set inside the birthplace of the secret state."
