Peter Houston wanted to find the grave of the war-hero father he never knew—a yearning that drew him thousands of miles from home to a military cemetery in France. He never dreamed that his private pilgrimage would unearth a decades-long secret and plunge him into a deadly labyrinth of intrigue and murder. As ruthless assassins hunt him through the cities of Europe, he struggles to stay alive, but when they murder the woman he loves, he turns from hunter to hunted—and swears a blood oath of vengeance.