Margery Booth: The Opera Singer Who Spied on Hitler From Inside Berlin

Adolf Hitler once sent Margery Booth 200 red roses wrapped in a sash printed with a swastika. He'd just watched her sing at Bayreuth and told her she was perfectly charming. What he didn't know was that the same woman was smuggling British intelligence out of Nazi Germany hidden in her underwear, hiding a Jewish woman in her Berlin flat, and burying stolen documents in the grounds of a royal palace. She got away with it for years, moving through Hitler's inner circle as one of the most...