The new DCI Henry Christie novel - Fourteen-year-old Mark Carter is plunged into a world of crime following his sisters drug overdose. He agrees to become an informer for DCI Christie in order to avenge Beths death and redeem himself. But if it all goes wrong, Mark stands to lose everything including his life. Marks obsession for revenge leads him to a dangerous mixture of teenage street gangs, brutal murder, drug turf wars and betrayal . . .