Mr. Leyland

Mr. Brinkman

Mr. Brinkman and Mr. Leyland are colleagues or business associates, with frequent interactions suggesting close professional ties.

Miles Bredon

Miles Bredon and Mr. Leyland interact frequently in a professional capacity, likely as investigator and subject or colleague.

Simmonds

Mr. Leyland and Simmonds have a professional relationship, likely as employer and employee or colleagues.

Mr. Mottram

Mr. Leyland and Mr. Mottram are professional associates, possibly working together in the same firm or case.

Angela Bredon

Angela Bredon and Mr. Leyland have a professional relationship, likely as investigator and subject or colleague.

Mr. Brinkman

Mr. Brinkman and Mr. Leyland are colleagues or business associates, with frequent interactions suggesting close professional ties.

Mr. Mottram

Mr. Leyland and Mr. Mottram are professional associates, possibly working together in the same firm or case.

Angela Bredon

Angela Bredon and Mr. Leyland have a professional relationship, likely as investigator and subject or colleague.

Miles Bredon

Miles Bredon and Mr. Leyland interact frequently in a professional capacity, likely as investigator and subject or colleague.

Miles Bredon

Miles Bredon and Mr. Leyland interact frequently in a professional capacity, likely as investigator and subject or colleague.

Simmonds

Mr. Leyland and Simmonds have a professional relationship, likely as employer and employee or colleagues.

Mr. Brinkman

Mr. Brinkman and Mr. Leyland are colleagues or business associates, with frequent interactions suggesting close professional ties.

The Three Taps

Inspector leading the investigation; meets Bredon at the scene.

III: At the Load of Mischief

Mentioned by Pulteney as a policeman from London who arrived at the inn around luncheon time.

IV: The Bedroom

Inspector investigating Mottram's death; an old war comrade of Bredon. Shares forensic details and debates suicide vs. murder.

V: Supper, and Mr. Brinkman

In a contemplative mood at supper, puzzling over the locked room mystery.

VI: An Ear at the Keyhole

In bar parlour listening to gossip; Bredon warns him about eavesdroppers.

VII: From Leyland’s Notebook

The narrator of the chapter; records his evolving theory of murder, doubting his own certainty after betting with Bredon.

IX: The Late Rector of Hipley

Eagerly awaits Bredon's return and shares the contents of Mottram's will and codicil.

X: The Bet Doubled

Shares details of Mottram's will and the Euthanasia policy with Bredon, and accepts the doubled bet.

XI: The Generalship of Angela

Provides a handkerchief for the blindfold game and participates in the conversation about silver hallmarks.

XII: The Makings of a Trap

Leyland devises the plan to bluff Brinkman into betraying himself, and observes Simmonds with the barmaid.

XIII: A Morning with the Haberdasher

Outlines his case against Simmonds and his suspicions of Brinkman in a staged conversation.

XV: A Scrap of Paper

Shows Bredon the burnt paper fragment he found in Mottram's room. Explains the discovery and its likely connection to the will and the Euthanasia policy.

XVIII: The Barmaid Is Brought to Book

Accepts that Emmeline's testimony is discredited and shifts focus to Brinkman as the quarry.

XIX: How Leyland Spent the Evening

Leads the plan, waits at the garage with Pulteney.

XX: How Bredon Spent the Evening

Mentioned as having given Bredon instructions to sit at the window; Angela threatens to have him arrest Bredon.

XXI: How Eames Spent the Evening

Receives Eames's report and coordinates pursuit.

XXII: At a Standstill

Details the failed pursuit of Brinkman, including the car arrangement and express train escape; argues for Brinkman's guilt as a murderer.

XXIII: Leyland’s Account of It All

Presents his detailed theory of the murder, explaining Brinkman's motives and method.

XXIV: Mottram’s Account of It All

Applauds Eames's discretion and questions whether Brinkman knew of the suicide plan.

XXV: Bredon's Account of It All

Found the burnt will fragment; comments on the legal difficulty of charging Brinkman.