The real history of MI5. 'PO Box 500, London W2'; the nondescript address from behind which one of the world's most famous Secret Services hid: MI5. This book, based on previously secret sources, lifts the lid on Britain's Security Service in its battle against German espionage. During the Second World War, the Security Service, through brilliant officers such as Guy Liddell, Dick White and the fearsome spy-breaker, 'Tin-eye' Stephens, commandant...