Hercule Poirot available to solve mysteries at an English country house. At the time of Christie's writing, it was considered patriotic to express sympathy towards the Belgians, since the invasion of their country had constituted Britain's "casus belli" for entering World War I, and British wartime propaganda emphasised the "Rape of Belgium". Poirot first appeared in "The Mysterious Affair at Styles" (published in 1920) and exited in "Curtain" (published in 1975). Following the latter, Poirot was the only fictional character to receive an obituary on the front page of "The New York Times". By 1930, Agatha Christie found Poirot "insufferable", and, by
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