Hercule Poirot in literature Chocolate Box" but for some reason this reference was removed from the later editions. The Poirot books are still under copyright. "The Mysterious Affair at Styles" is now public domain in the US but will not become public domain in the UK until 2046 (70 years after Christie's death). Christie's grandson, Matthew Prichard, now owns the copyright to his grandmother's works. In 2014, the Christie estate authorised author Sophie Hannah to write a new Poirot book, "The Monogram Murders". "Short story collections listed as "ss"" Poirot settles down in London and opens a private detective agency. These are the short
Agatha Christie: Murder on the Orient Express detective Hercule Poirot. "Murder on the Orient Express" retains the main plot elements of Agatha Christie's novel of the same name. An additional ending is presented in the game which differs from the conclusion of Christie's novel. As with "And Then There Were None", Christie's novel is bundled with the game. Some reviewers of "Murder on the Orient Express" criticized the game because of the repetitive nature of tasks the player must complete, and also complained about the inefficient and cumbersome inventory system. Others have praised it for improved graphics compared to "And Then There Were None", as well as