Six months after the blood-soaked conclusion of Moscow Rules, Allon is in Umbria, trying to resume his honeymoon with his new wife, Chiara, when a colleague pays him a shocking visit. The man who saved Allon's life in Moscow and was then resettled in England has vanished without a trace. British intelligence is sure he was a double agent all along, and they blame Allon for planting him. To discover the truth and clear his name, Allon must go immediately to London - a decision that will prove to be the most fateful of his career. In the British capital, he finds himself once more on the front lines of the secret war between East and West, where Russian spies and dissidents engage in the old game of cat and mouse. There, Allon uncovers a much greater conspiracy, a plot by an old enemy to resurrect a network of death, to bring the world to the precipice of a new confrontation, and in order to stop it, he must risk everything: his ties to an organization he has served since his youth, his new marriage . . . even his life.