Poirot's Early Cases is a short story collection written by Agatha Christie and first published in the UK by Collins Crime Club in September 1974. The book retailed at £2.25. Although the stories contained within the volume had all appeared in previous US collections, the book also appeared there later in 1974 under the slightly different title of Hercule Poirot's Early Cases in an edition retailing at $6.95. In the collection, Christie charts some of the cases from Hercule Poirot's early career, before he was internationally renowned as a detective. All the stories had first been published in periodicals between 1923 and 1935. Plot summaries "The Affair at the Victory Ball" Chief Inspector Japp asks Poirot to assist Scotland Yard in the strange events which took place at a recent costumed Victory Ball. A group of six people, headed by the young Viscount Cronshaw, attended dressed in the costume of the Commedia dell'arte. Lord Cronshaw was Harlequin, his uncle, the honourable Eustace Beltane, was Punchinello and Mrs Mallaby, an American widow, was Punchinella. In the roles of Pierrot and Pierrette were Mr and Mrs Christopher Davidson (he being a stage actor) and finally, Miss "Coco" Courtenay, an actress rumoured to be engaged to Lord Cronshaw, was Columbine. The night went badly from the start when it was obvious to the party that Cronshaw and Miss Courtenay were not on speaking terms. The latter was crying and asked Chris Davidson to take her home to her flat in Chelsea. When they had gone, a friend of Cronshaw's spotted Harlequin in a box looking down on the ball and called up to him to join them on the main floor. Cronshaw left the box to join them but then disappeared. He was found ten minutes later on the floor of the supper room, stabbed through the heart with a table knife, his body strangely stiff. Coco Courtenay is found dead in her bed from an overdose of cocaine; at the inquest that followed, it was found that she was addicted to the drug. Poirot starts to investigate, finding out to everyone's puzzlement that Cronshaw was emphatically opposed to drugs, that Beltane's costume had a hump and a ruffle and that a curtained recess exists in the supper room. He arranges a get-together of the people involved at his flat where he puts on a shadowed presentation across a back-lit screen of the