Sleeping Murder: Miss Marple's Last Case is a work of detective fiction by Agatha Christie and first published in the UK by the Collins Crime Club in October 1976 and in the US by Dodd, Mead and Company later in the same year. The UK edition retailed for £3.50 and the US edition for $7.95.

Nemesis is a work of detective fiction by Agatha Christie (1890–1976) and first published in the UK by the Collins Crime Club in November 1971 and in the US by Dodd, Mead and Company later in the same year. The UK edition retailed at £1.50 and the US edition at $6.95. It was the last Miss Marple novel the author wrote, although Sleeping Murder was the last Miss Marple novel to be published.