The Clue Against the Locked Door
Good Morning, Midnight (Reginald Hill Edition)Forensic details progressively dismantle the apparent impossibility of the study and redirect suspicion toward the staging itself.
increasing
Bearing strength in each event
decreasing
A Locked and Bolted Room

A Locked and Bolted Room
The initial puzzle
Police find the study door locked and bolted, with the key on the inside. The windows and shutters appear secured, supporting an apparent suicide.
A misleading certainty
The room seems to define what could have happened. Pascoe recognizes that the physical arrangement may be evidence of staging rather than proof of isolation.
The Prints Below the Keyhole

The Prints Below the Keyhole
Unusual contact
Pascoe and Novello find a palm print low on the damaged door and notice the absence of the dead man’s expected prints on the knob and key.
A changed question
The marks may belong to someone kneeling outside the door. The investigation shifts from how the victim escaped the room to how another person could make it appear locked.
A Mechanism Reconstructed

A Mechanism Reconstructed
The laboratory account
Arnold Gentry describes thread attached to the gramophone spindle and passed through the keyhole. The record player could pull the key around from outside.
The illusion explained
Burning the thread could remove part of the mechanism and preserve the appearance of a locked study. A technical solution turns the room from an impossibility into an engineered scene.
The Matching Palm Print

The Matching Palm Print
A new connection
Gentry matches the palm print at the door to a print Pascoe left on a sheet of paper. A partial print on the key appears to match as well.
Suspicion redirected
The evidence points toward someone who had been inside the house and knew how to set the mechanism. It supports staging but does not by itself prove a killing.
The Room Cleared

The Room Cleared
A search interrupted
Kay Kafka returns and opens the concealed compartment after Pascoe has removed the room’s contents. Edgar Wield encounters her before the team can question her further.
A clue that turns inward
The search suggests she knew about the hidden space, but the later forensic results show no prints of hers on the recovered material. The apparent clue does not provide a simple verdict.
March 20, 2002, night
March 22, 2002, morning
March 22, 2002, afternoon
March 22, 2002, late afternoon
March 22, 2002, night