The Murer of Roger Ackroyd is a work of detective fiction by Agatha Christie and first published in the UK by William Collins & Sons in June 1926 and in the US by Dodd, Mead and Company on the 19th of the same month. It features Hercule Poirot as the lead detective. The UK edition retailed at seven shillings and sixpence (7/6) and the US edition at $2.00.