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: Murder on the Orient Express noises coming from the Orient Express itself, and other environmental noises such as howling wind. IGN, in contrast, heavily criticized the game for a lack of background music, and simplistic and monotonous sound effects. "Murder on the Orient Express" was used as a learning tool during a study on learner autonomy in video games. This study took Greek high school students and had them involved in several tests and evaluations at several different points of the study. Agatha Christie: Murder on the Orient Express Agatha Christie: Murder on the Orient Express is a 2006 adventure game developed by AWE Productions