Double Agent : From the bestselling author of Secret Service

The first rocket will take five minutes to hit London. You have six minutes to stop the second. Rudi Graf used to dream of sending a rocket to the moon. Instead, he has helped create the world's most sophisticated weapon: the V2 ballistic missile, capable of delivering a one-ton warhead at three times the speed of sound. In a desperate gamble to avoid defeat in the winter of 1944, Hitler orders ten thousand to be built. Haunted and disillusioned, Graf - who understands the volatile, deadly machine better than anyone - is tasked with firing these lethal 'vengeance weapons' at London.