The Hidden Identity
The Hound of the BaskervillesThis conflict thread traces the gradual exposure of Stapleton as a disguised Baskerville claimant who has concealed his marriage and criminal past.
increasing
Bearing strength in each event
decreasing
The Naturalist’s Mask

The Naturalist’s Mask
A plausible neighbor
Stapleton presents himself as an educated naturalist who studies Dartmoor’s plants, butterflies, and ancient sites.
A watchful manner
His curiosity about Watson’s purpose exceeds ordinary hospitality.
The harmless public identity conceals an active strategist.
Beryl’s Unease

Beryl’s Unease
A strained household
Beryl’s words sound unconvincing when she describes life with her brother as happy.
Control glimpsed
She watches Jack carefully, while his greeting and questions carry a possessive edge.
The supposed sibling relationship begins to feel false.
A Portrait Resemblance

A Portrait Resemblance
Hugo’s face reconsidered
Holmes uses the old portrait’s costume to isolate a face that resembles Stapleton.
A family link
The visual comparison suggests he is a Baskerville rather than an unrelated naturalist.
Identity supplies a possible inheritance motive.
The Wife Revealed

The Wife Revealed
A secret marriage
Holmes establishes that the woman introduced as Beryl’s sister is actually Stapleton’s wife.
Deception exposed
Laura understands that Stapleton’s marriage promise to her was false.
His control over both women begins to break.
A Claim Without a Future

A Claim Without a Future
Flight through the bog
After the hound is killed and Beryl rescued, Stapleton escapes toward his hidden refuge.
No public inheritance
He vanishes into Grimpen Mire, leaving no safe route to claim the estate.
The concealed identity ends in disappearance rather than succession.
Watson’s first meeting with Stapleton
During Watson’s first visit to Merripit House
After Holmes reaches Baskerville Hall
During Holmes’s conversation with Laura Lyons
After Stapleton flees toward Grimpen Mire