The Locked Room Mystery: While not a literal locked room, the moor is presented as an isolated environment, with limited access and suspicious circumstances. The seemingly supernatural killings create an aura of mystery, forcing the detective to unravel the truth behind the impossible.
The Red Herring: The story is riddled with red herrings, misdirection, and false leads, including the legends of the spectral hound, the initial suspicion of the local villagers, and even the character of Selden, who initially appears to be the culprit.
The Mysterious Stranger: The introduction of the enigmatic Stapleton adds to the mystery, with his peculiar behaviour, knowledge of the legends, and unsettling connection to the Baskerville family. He becomes a prime suspect, keeping the readers guessing about his true motives.
The Hidden Clues: Throughout the story, Doyle strategically scatters clues that Holmes uses to piece together the truth. These clues range from the footprints of a large dog to the peculiar behaviour of Stapleton and the discovery of the real hound.
The Suspicious Family: The Baskerville family is steeped in intrigue and suspicion, with a history of violence and secrets. The family's past, particularly the death of Sir Charles, fuels the narrative and creates a sense of foreboding.
The Detective's Deductive Reasoning: Holmes, as always, employs his remarkable powers of observation and deduction to unravel the puzzle. He meticulously analyzes evidence, connects the dots, and unravels the complex web of deceit surrounding the Baskerville curse.
The Dramatic Showdown: The climax sees Holmes confronting the true villain, Stapleton, in a tense and exciting confrontation. The suspense builds as the reader anticipates the outcome of the battle between good and evil.
The Resolution of the Mystery: The mystery is ultimately resolved, with the true culprit revealed, their motives explained, and the hound's true nature exposed. The narrative emphasizes the importance of logic and reason in overcoming superstition and fear.
The Moral Dilemma: The story explores the complexities of human nature, highlighting the destructive nature of revenge, the power of fear, and the importance of confronting our prejudices.
These conventions, combined with Doyle's masterful storytelling, make Hound of the Baskervilles a captivating and enduring classic of crime fiction.