An Officer and a Spy by Robert Harris - An Officer and a Spy by Robert Harris. Georges Picquart, recently promoted head of the agency that helped convict Dreyfus of treason. Picquart believes in Dreyfus's guilt. But gradually Picquart comes to suspect that a spy remains at large in the military. With evidence mounting, pointing to deceit at the highest levels of government, Picquart has nowhere to turn and is compelled to question his most deeply held beliefs about his country and himself.
Enigma (novel) - Wikipedia, the free encyclopedia "Enigma is a novel by Robert Harris about Tom Jericho, a young mathematician trying to break the Germans' "Enigma" ciphers during World War II. It was adapted to film in 2001. He is stationed in Bletchley Park, the British cryptologist central office, and is worked to the point of exhaustion."