The Thirteen Problems is a short story collection written by Agatha Christie and first published in the UK by Collins Crime Club in June 1932 and in the US by Dodd, Mead and Company in 1933 under the title The Tuesday Club Murders. The UK edition retailed at seven shillings and sixpence (7/6) and the US edition at $2.00. The thirteen stories feature the amateur detective Miss Marple, her nephew Raymond West, and her friend Sir Henry Clithering. They are the earliest stories Christie wrote about Miss Marple.