Although it was illegal, secret and against the express commands of his famously mad father, King George IV of England married twice - once for duty and once for love. While Caroline of Brunswick eventually became his lawful queen, it was the beautiful Maria Fitzherbert, recognised as his wife by the Catholic Church but not by the laws of England, who claimed his heart. In the hands of author Diane Haeger, their relationship becomes a mesmerising love story, filled with intrigue and passion. The characters and drawing rooms of early 19th-century England come alive to create a portrait of the age that is colourful and resonant with historical detail.