His work for the CIA is brilliant, cold-blooded and efficient, but who is he? In a harrowing tour de force, phenomenally bestselling author Tom Clancy shows how an ordinary man named John Kelly crossed the lines of justice and morality to become the CIA legend known as Mr. Clark. It is an unforgetta...

His work for the CIA is brilliant, cold-blooded and efficient, but who is he? In a harrowing tour de force, phenomenally bestselling author Tom Clancy shows how an ordinary man named John Kelly crossed the lines of justice and morality to become the CIA legend known as Mr. Clark. It is an unforgettable journey into the heart of darkness, without mercy--without remorse.

SOON TO BE A MAJOR MOTION PICTURE STARRING MICHAEL B. JORDANFrom 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.