The Eleventh Commandment by Jeffrey Archer

Connor Fitzgerald has an impressive resume. Military hero. Devoted family man. Servant of his country—as an assassin. Just as he’s about to put his twenty-eight-year career at the CIA behind him, he comes up against the most dangerous enemy he’s ever faced: His own boss, Helen Dexter.

As Director of the CIA, Dexter has always been the one to hold the strings. But when her status is threatened by a greater power, her only hope for survival is to destroy Fitzgerald. Meanwhile, the country braces itself as tensions with a new Russian leader reach the boiling point…and it’s up to Fitzgerald to pull off his most daring mission yet: To save the world. Even if that means risking everything—including his own life—in the process.