Recalled to service in Israel after terrorists steal secrets about his past, art restorer and sometime spy Gabriel Allon finds himself stalking an elusive master terrorist in a deadly cat-and-mouse game.

At an exclusive private school in Switzerland, mystery surrounds the identity of the beautiful raven-haired girl who arrives each morning in a motorcade fit for a head of state. She is said to be the daughter of a wealthy international businessman. In truth, her father is Khalid bin Mohammed, the much-maligned crown prince of Saudi Arabia. Once celebrated for his daring social and religious reforms, he is now reviled for his role in the murder of...