Double Agent Celery: MI5's Crooked Hero

With Britain braced for a German invasion, MI5 recruited an ex RNAS officer, come confidence trickster, called Walter Dicketts as a double agent. Codenamed Celery, Dicketts was sent to Lisbon with the seemingly impossible mission of persuading the Germans he was a traitor and then extract crucial secrets. Once there, the Nazis spirited him off to Germany. With his life on the line, Dicketts had to outwit his interrogators in Hamburg and Berlin before returning to Britain as, in the Nazis’ e...