Dr James Mortimer asks Sherlock Holmes to investigate the death of his friend, Sir Charles Baskerville. Sir Charles was found dead on the grounds of his Devonshire estate, Baskerville Hall, and Mortimer now fears for Sir Charless nephew and sole heir, Sir Henry Baskerville, who is the new master of Baskerville Hall. The death was attributed to a heart attack, but Mortimer is suspicious, because Sir Charles died with an expression of horror on his face, and Mortimer noticed the footprints of a gigantic hound nearby. The Baskerville family has supposedly been under a curse since the era of the English Civil War when ancestor Hugo Baskerville allegedly offered his soul to the devil for help in abducting a woman and was reportedly killed by a giant spectral hound. Sir Charles believed in the curse and was apparently fleeing from something in fright when he died. Intrigued, Holmes meets with Sir Henry, newly arrived from Canada. Sir Henry has received an anonymous note, cut and pasted from newsprint, warning him away from the Baskerville moors, and one of his new boots is inexplicably missing from his London hotel room. The Baskerville family is discussed: Sir Charles was the eldest of three brothers; the youngest, black sheep Rodger, is believed to have died childless in South America, while Sir Henry is the only child of the middle brother. Sir Henry plans to move into Baskerville Hall, despite the ominous warning message. Holmes and Dr Watson follow him from Holmess Baker Street apartment back to his hotel and notice a bearded man following him in a cab; they pursue the man, but he escapes. Mortimer tells them that Mr Barrymore, the butler at Baskerville Hall, has a beard like the one on the stranger. Sir Henrys boot reappears, but an older one vanishes. The Hound of the Baskervilles is the third of the crime novels written by Sir Arthur Conan Doyle featuring the detective Sherlock Holmes. Originally serialised in The Strand Magazine from August 191 to April 192, it is set largely on Dartmoor in Devon in Englands West Country and tells the story of an attempted murder inspired by the legend of a fearsome, diabolical hound of supernatural origin. Sherlock Holmes and his companion Dr. Watson investigate the case. This was the first appearance of Holmes since his apparent death in The Final Problem, and the success of The Hound of the Baskervilles led to the characters eventual revival.