Enid Blyton a collection of papers belonging to Blyton's daughter Gillian, purchased by Seven Stories in 2010 following her death. It was initially thought to belong to a comic strip collection of the same name published in 1949, but it appears to be unrelated and is believed to be something written in the 1930s, which had been rejected by a publisher. In a 1982 survey of 10,000 eleven-year-old children Blyton was voted their most popular writer. She is the world's fourth most-translated author, behind Agatha Christie, Jules Verne and William Shakespeare with her books being translated into 90 languages. From 2000 to
Agatha Christie's fictional universe after Agatha Christie died, are included in the lists. Her novels under the pen name Mary Westmacott and her nonfiction books are not covered in this article. One notable example of characters from one novel appearing in another is the novel "The Pale Horse", which features Ariadne Oliver, Major Despard and his wife Rhoda (all had previously appeared on "Cards on the Table") and Mrs Dane Calthrop (from "The Moving Finger"). Outside of stories by Christie herself, adaptations of her works have also featured crossovers: Agatha Christie's fictional universe In Agatha Christie's mystery novels, several characters cross over different sagas,