The Mysterious Affair at Styles is a detective novel by Agatha Christie.
It introduced Hercule Poirot, Inspector (later, Chief Inspec.
Styles was Christie\'s first published novel.
The US edition retailed at US$2.00 and the UK edition at seven shillings and sixpence (7/6).
It was written in the middle of World War I, in 1916, and first published by John Lane in the United States in October 1920 and in the United Kingdom by The Bodley Head (John Lane\'s UK company) on 21 January 1921.
The Mysterious Affair at Styles is a detective novel by Agatha Christie