Agatha Christie Before marrying and starting a family in London, she had served in a Devon hospital during the First World War, tending to troops coming back from the trenches. She was initially an unsuccessful writer with six consecutive rejections, but this changed when "The Mysterious Affair at Styles", featuring Hercule Poirot, was published in 1920. During the Second World War, she worked as a pharmacy assistant at University College Hospital, London, acquiring a good knowledge of poisons which feature in many of her novels. "Guinness World Records" lists Christie as the best-selling novelist of all time. Her novels have sold roughly
Death in the Clouds doors of a library, but the combination of poisoned dart and plane is probably unique. Not that such minor matters are of the slightest consequence to the reader; the main thing is that this is an Agatha Christie story, featuring Hercule Poirot, who is, by his own admission, the world's greatest detective." He concluded, "This is a crime puzzle of the first quality, and a mighty entertaining story besides." In "The Observer"'s issue of 30 June 1935, "Torquemada" (Edward Powys Mathers) started his review, "My admiration for Mrs. Christie is such that with each new book of hers I strain