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 (1939 film) Sir Henry's uncle. Although he was found dead in his garden without any trace of physical damage, Sir Charles's face was distorted as if he died in utter terror, from heart failure. He alone had noticed footprints at some distance from the body when it was found; they were the paw marks of a gigantic hound. Holmes decides to send Watson to Baskerville Hall along with Sir Henry, claiming that he is too busy to accompany them himself. Sir Henry quickly develops a romantic interest in Beryl Stapleton (Wendy Barrie), the step-sister of his neighbour Jack Stapleton (Morton Lowry), a