Agatha Christie her service in September 1918. After the war, Agatha and Archie Christie settled in a flat at 5 Northwick Terrace in St. John's Wood, northwest London. Christie had long been a fan of detective novels, having enjoyed Wilkie Collins's "The Woman in White" and "The Moonstone", as well as Sir Arthur Conan Doyle's early Sherlock Holmes stories. She wrote her own detective novel, "The Mysterious Affair at Styles", featuring Hercule Poirot, a former Belgian police officer noted for his twirly large "magnificent moustaches" and egg-shaped head. Poirot had taken refuge in Britain after Germany invaded Belgium. Christie's inspiration for the
Agatha Christie: Murder on the Orient Express has been hidden in the baggage compartment of the train during the journey, having boarded at Belgrade disguised as an attendant. Daisy then comes out to meet the people who thought she was dead. Poirot, Dr. Constantine, and Marceau decide to tell the police officials the first solution – that an unknown assassin came aboard the train, killed Rachett, and left. The passengers are overjoyed that Daisy is alive and Poirot concludes that it is "a most satisfactory solution indeed." "Murder on the Orient Express" was announced in May 2006, as the second installment in The Adventure Company's "Agatha Christie