One of the defining novels of the entire crime genre, Gaston Leroux’s The Mystery of the Yellow Room has inspired readers and writers including Agatha Christie and John Dickson Carr, and is now republished in hardback in the Detective Club series with a brand new introduction.Breaking down her door in response to the sounds of a violent attack and a gunshot, Mademoiselle Stangerson’s rescuers are appalled to find her dying on the floor, clubbed down by a large mutton bone. But in a room with a...