What was the title of the first story featuring Miss Marple?

The first story featuring Miss Marple was “The Tuesday Night Club.”

The story was first published in The Royal Magazine in December 1927, introducing Christie’s elderly amateur detective from the fictional village of St Mary Mead. In it, a group gathers at Miss Marple’s house to discuss an apparently unsolvable poisoning case, and she solves the mystery by applying her sharp knowledge of village behaviour and human motives.

“The Tuesday Night Club” later became the opening story of The Thirteen Problems, a collection published in 1932. The collection presents a series of mysteries discussed by the Tuesday Night Club, with Miss Marple repeatedly seeing connections that the more confident investigators overlook. The US edition was published under the title The Tuesday Club Murders.

A common mix-up is to name The Thirteen Problems itself as the first story. That is the first collection of Marple stories, not the original story title. Another distinction matters too: Miss Marple’s first full-length novel appearance came later, in The Murder at the Vicarage, published in 1930.