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
Agatha Christie their mother insisted that Agatha receive a home education. As a result, her parents were responsible for teaching her to read and write and to master basic arithmetic, a subject she particularly enjoyed. They also taught her music, and she learned to play both the piano and the mandolin. According to biographer Laura Thomson, Clara believed that Agatha should not learn to read until she was eight. However, thanks to her own curiosity, Agatha taught herself to read much earlier. One of the earliest known photographs of Christie depicts her as a little girl with her first dog, whom she