On 10 May 1941, Rudolf Hess - Deputy Fuhrer of the Third Reich - embarked on his astonishing flight from Augsburg to Scotland. At dusk the same day, he parachuted on to a Scottish moor and was taken into custody. His arrival provoked widespread curiosity and speculation, which has continued to this day. Why did Hess fly to Scotland? Had Hitler authorized him to attempt to negotiate peace? Was Brit...