Agatha Christie a long-running character in Christie's works, appearing in 33 novels and 54 short stories. Miss Jane Marple, introduced in the short-story collection "The Thirteen Problems" in 1927, was based on Christie's grandmother and her "Ealing cronies". Both Jane and Gran "always expected the worst of everyone and everything, and were, with almost frightening accuracy, usually proved right." Marple appeared in 12 novels and 20 stories. During the Second World War, Christie wrote two novels, "Curtain" and "Sleeping Murder", intended as the last cases of these two great detectives, Hercule Poirot and Miss Marple. Both books were sealed in a bank
Julia McKenzie was announced as the replacement for Geraldine McEwan as ITV's Miss Marple. She noted: "It’s difficult because Agatha Christie wrote her in two ways ... First, very much what Geraldine McEwan played: a slight, rather Victorian creature. Then, a little sturdier and tweedier. I chose the latter. A lot of people say they don’t like the tweedier version. But they’re both genuine." Also, she said: "Just about everybody in the world knows about Miss Marple and has an opinion of what she should be like, so I’m under no illusions about the size of the task ahead." McKenzie's first series