Agatha Christie her service in September 1918. After the war, Agatha and Archie Christie settled in a flat at 5 Northwick Terrace in St. John's Wood, northwest London. Christie had long been a fan of detective novels, having enjoyed Wilkie Collins's "The Woman in White" and "The Moonstone", as well as Sir Arthur Conan Doyle's early Sherlock Holmes stories. She wrote her own detective novel, "The Mysterious Affair at Styles", featuring Hercule Poirot, a former Belgian police officer noted for his twirly large "magnificent moustaches" and egg-shaped head. Poirot had taken refuge in Britain after Germany invaded Belgium. Christie's inspiration for the
Agatha Christie's Poirot documentary (2013) in which David Suchet attempts to unravel the mysterious appeal of Hercule Poirot and how he portrayed him. It was broadcast in the United Kingdom on the same evening as the final episode "Curtain". Suchet visited Greenway, Agatha Christie's summer home, recollecting how he met her daughter Rosalind and her husband Anthony Hicks for their approval before he began filming. He now meets Christie's grandson Matthew Pritchard who recounts how his grandmother found the character amongst Belgian refugees in Torquay. A visit to the permanent Poirot exhibition at Torquay Museum to which he presented the cane he used