Whose Body? is a 1923 mystery novel by Dorothy L. Sayers first published in the UK by T. Fisher Unwin and in the US by Boni & Liveright. It was her debut novel, and the book in which she introduced the character of Lord Peter Wimsey. Clouds of Witness (1926) would be the next novel in which the character reappears. An architect, finds a dead body wearing nothing but a pair of pince-nez in the bath of his London flat. Lord Peter Wimsey—a nobleman who has recently developed an interest in criminal investigation as a hobby—resolves to investigate the matter privately. Initial reviews of the novel were largely positive, and later critics have continued to express admiration. Initial reviews of the novel in 1923 were largely positive. The New York Times said that “there seems to be no reason why the discerning, but by no means infallible, Lord Peter should not become one of the best-known and best-liked among the many amateur detectives of fiction”, while the New York Herald called the book "The best detective story we have read since we stopped regarding books purely as amusements”.