Diana Mosley (nee Mitford) had brains, beauty and charm, wealth and social position: she risked everything to follow the dark new creed of fascism when, at twenty-two, she fell in love with Oswald Mosley, the British fascist leader, and committed her life to his ideas. In Germany she became a friend of Hitler and Goebbels; by 1940, she was in a damp cell in Holloway prison. Jan Dalley's fascinating and undeceived biography cuts through the mythology that has been built up around the Mitford sisters and around the Mosleys and reveals the truth about both an extraordinary life and the web of anti-semitism that stretched through the English aristocracy between the wars.