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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.The book features Miss Marple. Released posthumously, it was the last published Christie novel, although not the last Miss Marple novel in order of writing. The story is explicitly set in 1944 but the first draft of the novel had been written even earlier than this during the Second World War. She aids a young couple who choose to uncover events in the wife's past life, and not let sleeping murder lie.