The Secret of Chimneys is a work of detective fiction by Agatha Christie and first published in the UK by The Bodley Head in June 1925 and in the US by Dodd, Mead and Company later in the same year. It introduces the characters of, among others, Superintendent Battle and Lady Eileen "Bundle" Brent. The UK edition retailed at seven shillings and sixpence ,Christie later used the "Chimneys" mansion, along with the characters Bill Eversleigh, Bundle, Georgle Lomax, Tredwell and Lord Caterham from this book in the 1929 novel The Seven Dials Mystery.