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Audio book description
After helping to crack the supposedly unbreakable Nazi Enigma Code, a future filled with honors and public recognition seemed assured for mathematical genius Alan Turing. But his country's obsession with national security, as well as his open homosexuality, at a time when it was still a crime in Britain, created problems with his family, friends, and colleagues.

Audio book description
When a close colleague is brutally attacked, DI John Rebus is drawn into a case involving an unidentified body and murder. Pursued by dangerous ghosts and tormented by the coded secrets of his colleague's notebook, Rebus must piece together a jigsaw no one wants completed.

Audio book description
In six minutes, one of us would be dead. None of us knew it was coming. So says Wes Holloway, a once-cocky and ambitious presidential aide, about the day that changed his life forever. On that Fourth of July, Wes put Ron Boyle, the chief executive's oldes…

Audio book description
In six minutes, one of us would be dead. None of us knew it was coming. So says Wes Holloway, a once-cocky and ambitious presidential aide, about the day that changed his life forever. On that Fourth of July, Wes put Ron Boyle, the chief executive's oldes…

Audio book description
When the NSA's invincible code-breaking machine encounters a mysterious code it cannot break, the agency calls its head cryptographer, Susan Fletcher, a brilliant, beautiful mathematician. What she uncovers sends shock waves through the corridors of power. The NSA is being held hostage, not by guns or bombs, but by a code so complex that if released it would cripple U.S. intelligence. Caught in an accelerating tempest of secrecy and lies, Fletcher battles to save the agency she believes in. Betrayed on all sides, she finds herself fighting not only for her country but for her life, and in the end, for the life of the man she loves.