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 hidden in the house; he agrees to look. Poirot and Hastings travel to Devon, where they are looked after by Mr and Mrs Baker, Marsh's housekeepers. They tell Poirot that they signed and witnessed two wills, as Marsh said he had made a mistake with the first, although they did not see its contents. Immediately afterwards, Marsh left the house to settle tradesmen's accounts. Looking round the house, Poirot is pleased with the dead man's order and method, except for one particular: the key to a roll top desk has been affixed, not to a neat label, but instead to