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
Hercule Poirot Nevertheless, he regards the 1893 case in "The Chocolate Box", as his only actual failure of detection. Again, Poirot is not reliable as a narrator of his personal history and there is no evidence that Christie sketched it out in any depth. During his police career Poirot shot a man who was firing from a roof into the public below. In "Lord Edgware Dies", Poirot reveals that he learned to read writing upside down during his police career. Around that time he met Xavier Bouc, director of the Compagnie Internationale des Wagons-Lits. Poirot also became a uniformed director, working on