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A high-ranking scientist has been kidnapped. A secret British intelligence agency must find out why. But as the quarry is pursued from grimy Soho to the other side of the world, what seemed a straightforward mission turns into something far more sinister. With its sardonic, cool, working-class hero, Len Deighton's sensational debut The Ipcress File rewrote the spy thriller and became the defining novel of 1960's London.