The Last Account of the Murder
Towards ZeroBattle’s final reconstruction connects the misleading alibis, planted objects, hidden weapon, and physical route into one intelligible account.
increasing
Bearing strength in each event
decreasing
The Night’s Public Timeline

A Departure Seen
Quarrels and preparation
After dinner, Nevile argues with Lady Tressilian and later leaves Gull’s Point, ostensibly bound for Easterhead Bay. Kay has already gone to bed after a dispute with him.
The public timeline contains real events chosen to make a later attack seem explainable. The quarrel is genuine, but its apparent significance is manipulated.
A witness supplied
Nevile causes the bell to ring from outside the bedroom. Barrett sees him leaving and finds Lady Tressilian alive, creating a witness to a departure that will be misread as an alibi.
The Cross-River Return

An Unseen Route
The ferry is missed
Nevile says he misses the last ferry and returns by car with Latimer. The account seems ordinary, but no one can place Latimer continuously with him during the critical earlier period.
Battle and MacWhirter infer that Nevile could have crossed the water by swimming. The rope and damp floor in the house make an approach by the cliff physically possible.
An athletic advantage
Nevile’s sporting abilities, previously associated with charm and success, become tools for moving between shores unseen. The route explains how the apparent absence could be manufactured.
The Bedroom Attack

A Hidden Weapon
The blow delivered
Nevile attacks Lady Tressilian with the heavy fender knob, not the golf club that appears beside her. The prepared weapon allows him to strike without relying on an object carrying his obvious fingerprints.
He makes the blow appear left-handed, while using his strong backhand. The physical ambiguity helps direct suspicion toward Audrey, who is left-handed.
A death used as cover
Lady Tressilian is killed not for the money but to create the circumstances for Audrey’s accusation. The attack is a means to an intended judicial killing.
The Evidence Planted

Two Trails Left Behind
A first accusation
Nevile puts the golf club into the scene and uses its prints and blood to make himself look guilty. He expects the police to recognize the obvious frame and dismiss the first trail.
He also arranges evidence against Audrey, including the glove, the racket, and traces on his coat. The two trails are meant to control how each discovery is interpreted.
A plan disrupted
His preparations do not account for every accident or witness. The wrong suit reaches MacWhirter, and Battle sees contradictions the scheme cannot conceal.
The Motive Confessed

The Intended Execution
Revenge made explicit
Battle confronts Nevile with the crossing route and the failure of his planted evidence. Nevile breaks down and says that he wants Audrey to die, revealing the plan’s true purpose.
The confession explains why the crime was so elaborate despite Nevile’s financial security. His goal was to make legal punishment complete what his own attack could not achieve.
The account closes
The murder of Lady Tressilian, Treves’s death, the false bell, and the fabricated trails become parts of one plan. Audrey’s survival depends on a final chain of events that the planner did not control.
September 12, from dinner to 10:30 p.m.
September 12, late night, before 2:30 a.m.
September 12, late night, before midnight
After the attack, during Nevile’s return
Near the ending, after Battle stages the launch test