No. 1 New York Times bestselling author Daniel Silva delivers another stunning thriller in his latest action-packed tale of high stakes international intrigue featuring the inimitable Gabriel Allon. She is an iconic member of the British Royal Family, beloved for her beauty and charitable works, resented by her former husband and his mother, the Queen of England. When a bomb explodes aboard her holiday yacht, British intelligence turns to one man to track down her killer: Legendary spy and assassin Gabriel Allon.