Special thanks go to my friends Shirley and Kenny Allan for lifting the lid on the beautiful city of Dresden and keeping me straight on my German, and to fellow writer Gabriele Campbell for helping me negotiate my way through the Harz mountains. Heinz Hohne’s masterful book The Order of The Death’s Head gave me the fine detail I needed on the world of the SS and Matthew Sinclair’s diary probably owes more to With the Jocks by Peter White, one of the best memoirs of the Second World War by a fighting soldier, than any other history I read. Finally to Simon my editor and his fantastic team at Transworld, and to Stan, my agent at Jenny Brown in Edinburgh.