Gabriel Allon, the legendary chief of Israeli intelligence, has spent most of his life fighting terrorists, including the murderous jihadists financed by Saudi Arabia. Prince Khalid --- or KBM, as he is known --- has pledged to finally break the bond between the Kingdom and radical Islam. For that reason alone, Gabriel regards him as a valuable if flawed partner. Together they will become unlikely allies in a deadly secret war for control of the Middle East. The life of a child, and the throne of Saudi Arabia, hang in the balance. Both men have made their share of enemies. And both have everything to lose.