The Mystery of the Blue Train

The Mystery of the Blue Train is a work of detective fiction by British writer Agatha Christie, first published in the United Kingdom by William Collins & Sons on 29 March 1928 and in the United States by Dodd, Mead and Company later in the same year. The UK edition retailed at seven shillings and sixpence and the US edition at $2.00. The book features her detective Hercule Poirot. The novel concerns the murder of an American heiress on Le Train Bleu, the titular "Blue Train".