"Morton takes us through the cacophonous Jazz Age, a period of casual sex, cocaine, and screeching trombones; Wallis's romantic adventures in Washington and friendship with Eleanor Roosevelt; her exploits in China and beyond; to her entrance into the strange wonderland that is London Society. During her journey, we meet an extraordinary array of characters, many of whom smoothed the way for her dalliance with the king of England, Edward VIII, and...