The A.B.C. Murders is a work of detective fiction by Agatha Christie and first published in the UK by the Collins Crime Club on January 6, 1936 and in the US by Dodd, Mead and Company on February 14 of the same year. The UK edition retailed at seven shillings and sixpence (7/6) and the US edition at $2.00. The book features the characters of Hercule Poirot, Arthur Hastings and Chief Inspector Japp. The form of the novel is unusual, combining first and third-person narrative.