Frankland’s Telescope
The Hound of the BaskervillesThis subplot follows Frankland’s legal obsessions and accidental surveillance as his telescope helps Watson locate Holmes’s hidden refuge.
increasing
Bearing strength in each event
decreasing
A Litigious Neighbor

A Litigious Neighbor
Law as recreation
Frankland spends his fortune pursuing lawsuits over public paths and property rights.
Comic local power
His quarrels make him a disruptive but socially visible neighbor.
Watson records him as an eccentric factor in the case.
Watching the Moor

Watching the Moor
An amateur search
Frankland scans the moor with a telescope in hopes of spotting Selden.
An unintended discovery
He sees a boy carrying food toward a remote hill and believes the errand concerns the fugitive.
His attention has found Holmes’s courier instead.
A Boy on the Hill

A Boy on the Hill
The bundle observed
Frankland shows Watson the boy crossing the stony ground with a concealed-looking package.
Watson redirects his search
Recognizing the clue from Barrymore, Watson follows the route rather than correcting Frankland’s theory.
The neighbor’s hobby creates a break in the investigation.
The Hidden Hut

The Hidden Hut
A refuge uncovered
Watson finds Holmes’s hut, its supplies, and a note recording Watson’s visit to Laura Lyons.
Surveillance revealed
The note shows that Holmes’s network has been tracking Watson as well as the suspects.
Frankland’s telescope has exposed the detective’s hiding place.
A Useful Accident

A Useful Accident
The clue reinterpreted
Holmes identifies Frankland as the observer who noticed the supply boy and unknowingly helped Watson find him.
Eccentricity becomes evidence
The neighbor’s self-importance masks a practical contribution to the case.
A comic subplot becomes part of the detective’s network.
During Watson’s first report from the moor
After the convict escapes
The afternoon Watson visits Frankland
That evening on the moor
After Holmes explains his undercover work