This story is one of the four novels of Sherlock Holmes. This is the one story in which Holmes is absent for most part and most of the investigative work or the collection of data is done by Watson.
After the death of Sir Charles, his nephew, Sir Henry Baskerville comes to inherit his property—but there remains a danger as to his life if he goes to the Dartmoor. Local people of the place believe its the work of a supernatural hound-dog that kills anyone who tries to claim their right on the property.
Dr James Mortimer, Sir Charles' trustee consults Sherlock Holmes that should he let Sir Henry move to Devonshire or not.
The novel is widely regarded among some of the most famous Sherlock Holmes stories.