He has also stated that one characters code name of Wolf in an early draft of the book was a coincidence .
The name came from Wolf 's lawnmower and Wolf he renamed the character after being told that there was an actual Wolf in East German intelligence .
He has also stated that one characters code name of Wolf in an early draft of the book was a coincidence and the name came from his lawnmower and that he renamed the character after being told that there was an actual Wolf in East German intelligence .