After adapting all of Agatha Christie's major literary works in Agatha Christie's Poirot, the ITV show said goodbye to Hercule Poirot in the same way that the novel series did - with the detective deciding to end his own life after committing a murder of his own. So how did he die? Find out here...
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Poirot dies from heart condition complications after refusing to take his amyl nitrite pills. By the final novel, Poirot is already older and weaker, but pretends to use a wheelchair to trick people into thinking he was more infirm. In the 1975 novel, Agatha wrote: "Crippled with arthritis, he propelled himself about in a wheelchair.
"His once plump frame had fallen in. He was a thin little man now. His face was lined and wrinkled. His moustache and hair, and hair, it is true, were still of a jet black colour, but candidly, though I would not for the world have hurt his feelings by saying so to him, this was a mistake. There comes a moment when hair dye is only too painfully obvious."
While already ill, Hercule makes the conscious decision to stop taking his pills after he becomes a murderer himself. He kills Norton, a master manipulator who had convinced other people for doing his murders for him, and as such would never have been charged with any crime, and would have struck again.
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He then decides to end his own life afterwards to ensure it would be the final time he ever decided to take a life for the greater good. In the novel, his final words are: "Cher Ami!" to his good friend, Captain Hastings, whereas in the TV show, he murmurs to be forgiven in his final moments.