To unmask a CIA mole, John Wells must resume his old undercover identity as an al Qaeda jihadi--and hope he can survive it--in this cutting-edge novel from #1 New York Times-bestselling author Alex Berenson. It is the most dangerous mission of John Wells´s career... Evidence is mounting that someone high up in the CIA is doing the unthinkable--passing messages to ISIS, alerting them to planned operations. Finding out the mole´s identity without alerting him, however, will be very hard, and to accomplish it, Wells will have to do something he thought he´d left behind forever. He will have to reassume his former identity as an al Qaeda jihadi, get captured, and go undercover to befriend an ISIS prisoner in a secret Bulgarian prison. Many years before, Wells was the only American agent ever to penetrate al Qaeda, but times have changed drastically. The terrorist organizations have multiplied: gotten bigger, crueler, more ambitious and powerful. Wells knows it may well be his death sentence. But there is no one else.