#1 New York Times bestselling detective Billy Harney of The Black Book is chasing down a billionaire crime boss and a prison escape artist while a young girl´s life hangs in the balance. As Chicago PD´s special-ops leader, Detective Billy Harney knows well that money is not the only valuable currency. The filthy rich man he´s investigating is down to his last twenty million. He´s also being held in jail. For now. Billy´s unit is called in when an escape plan results in officers down and inmates vanished. In an empty lot, Billy spots two Kevlar vests. Two helmets. Two assault rifles. And a handwritten note: Hi, Billy Are you having fun yet?