John Kelly, an ordinary man, crosses the lines of justice and morality and becomes the legendary Mr. Clark of the CIA, a man of ruthless and brilliant cunning, whose merciless work during an all-out war game is done with complete human detachment. Reprint SOON TO BE A MAJOR MOTION PICTURE STARRING MICHAEL B. JORDAN!From Tom Clancy, the celebrated author of the Jack Ryan series, comes the #1 New York Times bestseller that puts CIA operative John Clark front and center....His code name is Mr. Clark. His work for the CIA is brilliant, cold-blooded and efficient...But who is he really?In a harrowing tour de force, Tom Clancy shows how an ordinary man named John Kelly crossed the lines of justice and morality to become the CIA legend, Mr. Clark.It is an unforgettable journey into the heart of darkness. Without mercy. Without guilt. Without remorse.