The Secret of Chimneys Agatha Christie - The Secret of Chimneys is a work of detective fiction by British writer Agatha Christie, 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 Superintendent Battle and Lady Eileen "Bundle" Brent. Agatha Christies The Secret of Chimneys, starring her occasional sleuths Superintendent Battle and Lady Eileen Bundle Brent, is a murder mystery-treasure hunt crossover, considered to be one of her best early novels. The plot should be delightful to traditionalists: there are a bunch of people staying at a mansion when one of the guests is murdered! (Apparently, theres a chance it might also be a bit racist, so just a heads up on that front.) It also features the fun-sounding fake-country name Herzoslovakia, which I think is one of the better sounding fake country names in fiction.