Enigma by Robert Harris

Robert Harris was a reporter on the BBC's Panorama and Newsnight programmes before becoming Political Editor of the Observer in 1987, and then a columnist on the Sunday Times. His five non-fiction books include Selling Hitler (1986), an account of the forging of Hitler's diaries.Fatherland (1992) was shortlist for the Whitbread First Novel prize, and was followed by Enigma (1995). His novels have sold six million copies worldwise and have been translated into 30 languages. He lives in Berkshire with his wife, Gill Hornby, and their three young children.

From the author of the smash bestseller Fatherland comes an extraordinary thriller of World War II's clandestine soldiers--the codebreakers. The desperate attempt to crack the Germans' secret messaging--played out in the unlikely British railway town of Bletchley--is a race waged for the highest stakes. Failure could lead to thousands of American casualties.