On going to leave the hotel, Patrick pays by cheque, signing the "R" in "Redfern" in a distinctive way that Poirot recognises as being the same way "Felix Ruber", husband of the Yorkshire moor victim, signed his name. The hiker who found the body had been Christine, establishing Patrick's alibi. Poirot knows photos from the British police will show Patrick and Felix to be the same person. Patrick puts a pipe in his mouth that has never been lit during his stay; Poirot empties the pipe bowl to reveal the genuine diamond. Patrick punches Poirot unconscious. The closing scene shows Daphne feeding the now conscious Poirot and informing him that the king is awarding him the Order of St Goodwin The Inquisitive, First Class, as Kenneth and Linda look on smiling. Meanwhile, several members of Daphne's staff are shown holding the Redferns prisoner on the island's shuttle boat on the way to the mainland while Blatt, Brewster, and the Gardners gleefully taunt the murderous couple with a champagne toast from Blatt's yacht.
