Murder in Chelsea

Murder in Chelsea is a 1934 detective novel by E.C.R. Lorac, the pen name of the British writer Edith Caroline Rivett. It is the seventh book featuring Chief Inspector MacDonald of Scotland Yard who appeared in a lengthy series of novels during the Golden Age of Detective Fiction.

Synopsis
A young woman, a keen bibliophile and co-owner of a bookshop, is found gassed to death in the bed of her Chelsea home.