The Wrong Letter

Sylvester Collins

Collins abandoned a promising legal career to work cases alongside Scotland Yard, where his keen, trained brain is both welcomed and feared by officials who prefer tidy conclusions. He arrives at the Home Office inquiry looking like a man who has walked three days through Devonshire, then calmly announces he knows who killed Sir James — and that the culprit doesn't exist. His refusal to explain, and his private conviction that the official case is a fraud, makes him the uneasy conscience of the investigation.

Arthur Sinclair

Sinclair earned his post through solid work in India and makes no claims to brilliance, which is precisely why he values Collins's help and tolerates his riddles. When a woman's voice coolly informs him the Home Secretary has been murdered — and signs off as the murderer — he is staggered but not shaken, and sets the machinery of official inquiry in motion. His steady, procedural mind becomes the counterweight to Collins's leaps, and the reader's anchor as the case turns strange.

Eric Sanders

Eric Sanders occupies an impossible position: trusted insider in the Watson household, yet barred by Sir James from courting Mabel, with words exchanged between them that the servants overheard. A visiting card found in Collins's pocket — 'For God's sake, see me. I will not detain you' — suggests a man with something urgent and dangerous to say. Whether he is a grieving suitor or something far more compromised, his shadow falls across every early theory about the murder.

Mabel Watson

Mabel grew up motherless in a country house full of roses, preferring her garden to London's gloomy social round, and never learned that her father had been watching her admirers with anxious suspicion. She carries one buried sorrow — a brother banished from Oxford and sent abroad, whose whereabouts her father refused to reveal. When Collins arrives to tell her Sir James is dead, her stunned, uncomprehending grief opens the novel's emotional register and ties her fate to the mystery's heart.

Sir James Watson

Sir James kept his home life simple and his friendships few, a haughty widower who could never quite believe his only daughter had grown up. He had already banished one child — a son sent down from Oxford and shipped off to Monte Video — and now watched Mabel's suitors with silent, possessive anxiety. His murder at his own house, phoned in to Scotland Yard by the killer himself, transforms a private, guarded man into the still centre of a public scandal.

F. D. Boyce

Boyce has inflated since the murder, trading on departmental authority while clumsily letting sensitive details slip to colleagues and then sulking when Collins calls him out. He bristles at Collins's contempt, questions Sinclair's jurisdiction, and demands the criminal be brought to justice in the loudest possible voice. His vanity and carelessness are a running irritant — and a quiet warning that the official machinery around this case is not as watertight as it looks.