Hitler was obsessed by this English opera singer who was working for MI6 and hiding escaped British airmen in her Berlin apartment. She sang to British PoWs, worked with MI6 spy John Brown and eventually gave evidence at war crimes trials.

Margery was with Hitler on his birthday when he was presented with the Tiger Tank. As a singer she was able to remember some critical technical data as a song which was sent back to Bletchley Park for decoding via her controller Hardy Amies and to the delight of Churchill who then ordered the capture of one. She had a narrow escape whilst hiding British airmen and was eventually caught by the Gestapo on the personal orders of Goering after being constantly shadowed by SS thug von Müller who eventually tortured her.—Frank Tuscany