Agatha Christie 2 billion copies, and her estate claims that her works come third in the rankings of the world's most-widely published books, behind only Shakespeare's works and the Bible. According to Index Translationum, she remains the most-translated individual author, having been translated into at least 103 languages. "And Then There Were None" is Christie's best-selling novel, with 100 million sales to date, making it the world's best-selling mystery ever, and one of the best-selling books of all time. Christie's stage play "The Mousetrap" holds the world record for longest initial run. It opened at the Ambassadors Theatre in the West End
Agatha Christie as the End", set in ancient Egypt, the culprit is killed by one of the few surviving characters before he can claim another victim. In some stories, the question remains unresolved of whether formal justice will ever be delivered, such as "Five Little Pigs" and "Endless Night". According to P. D. James, Christie often, but not always, made the unlikeliest character the guilty party. Savvy readers could sometimes identify the culprit by simply identifying the least likely suspect. On an edition of "Desert Island Discs" in 2007, Brian Aldiss claimed that Christie had told him that she wrote her books