Hitlers Secret by Rory Clements

In this bestselling thriller set in 1941 Tom Wilde is assigned to his deadliest mission yet – to smuggle a package out of Germany that will ensure the fall of the Third Reich. Deep behind enemy lines he discovers the truth about the task. As the enemy pursue him across Europe he becomes convinced that the secret he has risked his life for should remain hidden, even if that means betraying his country.