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
Ariadne Oliver Discontented Soldier", she was portrayed by Lally Bowers. A 1986 adaptation of "Dead Man's Folly" starred Jean Stapleton as Ariadne Oliver, opposite Peter Ustinov as Poirot. Zoë Wanamaker has played Ariadne Oliver in six television episodes of the series "Agatha Christie's Poirot", starring David Suchet as Hercule Poirot. In the last shot episode of the series (but not the finale), Mrs Oliver—a combination of Agatha Christie/Miss Marple—is helpful to Poirot in an adaptation of "Dead Man's Folly", which was filmed on the Christie Estate. In the BBC Radio 4 plays, Ariadne Oliver has been played by Stephanie Cole ("Cards on