In an isolated village, a Frenchwoman begins work on a memoir. It is the story of a man she once loved, and a child taken from her. She the keeper of the Kremlin's most closely guarded secret. Long ago, the KGB inserted a mole into the heart of the West who stands on the doorstep of ultimate power. Only one man can unravel the conspiracy: Gabriel Allon. Gabriel has battled the dark forces of the new Russia before. Now he and the Russians will engage in a final epic showdown.