At an exclusive private school in Switzerland, mystery surrounds the identity of the beautiful girl who arrives each morning and leaves each afternoon in a heavily protected motorcade fit for a head of state. She is said to be the daughter of a wealthy international businessman. She is not. And when she is brutally kidnapped across the border in the Haute-Savoie region of France, Gabriel Allon, the legendary chief of Israeli intelligence, is thrust...

Gabriel Allon, the art restorer, spy, and assassin is poised to become the chief of Israel's secret intelligence service. But on the eve of his promotion, events conspire to lure him into the field for one final operation. ISIS has detonated a massive bomb in the Marais district of Paris, and a desperate French government wants Gabriel to eliminate the man responsible before he can strike again.