Dr.Mortimer then shares a newspaper article about the death of Sir Charles Baskerville, a well-liked philanthropist. The article states that he was found dead of an apparent heart attack while walking in Yew Alley on his estate.Though Sir Charles walked Yew Alley every night before bedtime, Dr. Mortimer states that night he lingered at a gate opening upon the moor. He could tell because of the amount of cigar ash found by the gate.
Intrigued, Holmes asks for more details. Dr. Mortimer explains that the footprints were at a distance from the body, which suggests that the hound never approached. He further explains that the locals have seen and heard a hound roaming the moor.
Sherlock Holmes and Dr. Watson arriveat Henry's hotel for lunch. Holmes glances at the register under a pretense andquestions the receptionist about the other guests. He concludes that the personwho sent the warning to Sir Henry is not staying at his hotel.
When Watson sent a description of the neighbors, he suspected the Stapletons right away because the warning to Sir Henry had smelled of perfume. His own investigation yielded the necessary clue and revealed that they were married. Out of fear Beryl Stapleton was trapped in an abusive marriage, yet she could no longer support her husband when she saw the houndand realized that he was going to kill Sir Henry.
A scream interrupts their conversation. They run out into the darkness and moment slater find a dead body at the bottom of a cliff. At first they think it is Sir Henry, but as they turn him over they realize that it is Selden, who was wearing the tweed suit Barrymore had given him. It seems that he had been running from something, fell off the cliff, and broke his neck.
One question remains: If successful in getting rid of Sir Henry, how wouldStapleton have claimed the fortune without giving his identity away and thuscausing suspicion? Holmes declares that it is impossible to speculate what aman might have done in the future.