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
Poirot Investigates for the purposes of fiction, had been almost exhausted. Miss Agatha Christie, however, has invested the type with a new vitality in her Hercule Poirot, and in "Poirot Investigates" she relates some more of his adventures. Poirot is most things that the conventional sleuth is not. He is gay, gallant, transparently vain, and the adroitness with which he solves a mystery has more of the manner of the prestidigitator than of the cold-blooded, relentless tracker-down of crime of most detective stories. He has a Gallic taste for the dramatic, and in "The Tragedy of Marsdon Manor" he perhaps gives it