Agatha Christie: Murder on the Orient Express stay as faithful to Christie's work and time era as possible. A major difference between "And Then There Were None" and "Murder on the Orient Express" that Sheldon pointed out was that in the former, the premise of the novel was that no one solved the murder. This forced Sheldon to desperately try to find a way to integrate clues into the story so that the player could actually discover the murderer, although the game remained quite uninteractive. In "Murder on the Orient Express", the actual novel follows an investigation, so Sheldon could more easily integrate clues to lead to
The Gate of Calais Finchley", which he painted in 1749/50, provides a companion theme to "The Gate of Calais": it depicts a fictional gathering of robust English guardsman who are to march north to defend London against the invasion of Bonnie Prince Charlie's Jacobites in 1745. Further anti-French sentiment is apparent in his two "Invasion" engravings, published in 1756, and in "Beer Street", where Rev. James Townley's accompanying verses stress the superiority of the English. "The Gate of Calais" secondary title, "O, the Roast Beef of Old England", is a reference to the popular patriotic ballad 'The Roast Beef of Old England' from Henry