The Hounds of Baskerville order to test his theory. He also points out Sherlock was wrong for once; he believed the drug was in Henry's sugar and put it in John's coffee. In the closing scenes, Mycroft oversees the release of Jim Moriarty (Andrew Scott) from a holding cell in which he has written Sherlock's name all over the walls. The story is based on Arthur Conan Doyle's novel "The Hound of the Baskervilles", and also contains plot devices and lines from other Doyle stories: In June 2011, it was announced that Russell Tovey would appear in "Sherlock" series two in its second episode.
The Hound of the Baskervilles (1959 film) Mire. Cecille seems to act strangely around both Sir Henry and Watson. At night, Watson sees a light shining upon the moor. He and Sir Henry investigate the mysterious light. While they are out on the moor, a strange man rushes by them. Watson and Sir Henry pursue him, but he gets away from them. The Baskerville hound howls, causing Sir Henry to suffer a minor heart problem. A figure is silhouetted on a hill in the distance. Watson helps Sir Henry back to Baskerville Hall. Soon, Watson discovers that the silhouetted figure was Holmes; Holmes had arrived hours after