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 good reception, Coules proposed further radio adaptations, which eventually led to an entire dramatisation of the canon for radio, starring Clive Merrison as Holmes and Michael Williams as Watson. The second adaptation of "The Hound of the Baskervilles", featuring this pairing, was broadcast in 1998, and also featured Judi Dench as Mrs Hudson and Donald Sinden as Sir Charles Baskerville. In 2007, Peepolykus Theatre Company premiered a new adaptation of "The Hound of the Baskervilles" at West Yorkshire Playhouse in Leeds. Adapted by John Nicholson and Steven Canny, the production involves only three actors and was praised by critics for