商品簡介
England 1943, much of the infamous Nazi Enigma code has been cracked. But Shark, the impenetrable cipher used by Nazi U-boats, has masked the Germans' movements, allowing them to destroy Allied vessels. Now a top-secret team of British cryptographers works feverishly around the clock to break Shark. And when brilliant mathematician Tom Jericho succeeds, it is the stuff of legend.
Until the unthinkable happens: the Germans change the code. As an Allied convoy crosses the U-boat-infested North Atlantic....as Jericho's ex-lover disappears amid accusations that she is a Nazi collaborator.......as Jericho strains his last resources to break Shark again, he cannot escape the ultimate truth: There is a traitor among them.
作者簡介
Harris is the author of five nonfiction books, three of which have been published in the United States: A Higher Form of Killing (1982), a history of chemical and biological warfare; Gotcha! (1983), a study of how the media covered the Falklands War; and Selling Hitler (1986), the s
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