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: And Then There Were None Adventure Company chose the novel "And Then There Were None" as the first game, instead of other Christie novels involving famous detectives Hercule Poirot and Miss Marple, for several reasons. Among them was the popularity of the novel, which would help with marketing; and the island nature of the story which would provide a natural barrier, while allowing more freedom of movement for the players within that confined area. One major obstacle in the development of "And Then There Were None" was gaining the approval of aspects of the game from Chorion, the company which owns the rights to Agatha