The Case with Nine Solutions · Character

Dr. Trevor Markfield

A sharp-tongued research chemist who helps the police with poison analysis while keeping his own cards close to his chest.

major

Also known as Trevor, Markfield, Dr. Markfield

First appearance: I: The Dying Man

As a major figure in The Case with Nine Solutions, Dr. Trevor Markfield is not background color—the story leans on what they do once the chapter opens.

A visitor who shares gossip about Hassendean and Mrs.

In the storyI: The Dying ManOpen this moment free

See Dr. Trevor Markfield in I: The Dying Man Book page

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Markfield moves easily between the laboratory, the Institute, and the Silverdales' social orbit, which makes him useful to the investigation and hard to read. He is caustic about marriage and women, and his reluctance to answer questions frankly puts Flamborough on edge. His scientific expertise and his private knowledge of the Silverdale household make him a pivot the police cannot afford to alienate.

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The fuller portrait of Dr. Trevor Markfield sits in Reading Lens — open the free preview to keep reading with notes on the page.

See Dr. Trevor Markfield in I: The Dying Man

Character Web

17 connections

A slice of how Dr. Trevor Markfield sits in the book — open the reader for the full interactive map.

Relationship types

Professional
Friendship
Other

Character groups

Main Investigation Team
Protagonist

+12 more in the full Character Web

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Narrative arc

Story tension across the book — this chapter sits in Exposition.

Setup
Escalation
Breaking point
Aftermath
Closing

This excerpt marks the dramatic climax because it presents the psychological peak of Sir Clinton’s confrontati…

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Relationships

Inspector Flamborough
professional · positive
Sir Clinton Driffield
friendship · positive
Silverdale
professional · ambivalent
Dr. Ringwood
friendship · positive
Silverdale
professional · ambivalent
Inspector Flamborough
professional · positive
Sir Clinton Driffield
friendship · positive
Sir Clinton Driffield
friendship · positive
Inspector Flamborough
professional · positive
Dr. Ringwood
friendship · positive
Dr. Ringwood
friendship · positive
Silverdale
professional · ambivalent

Inspector Flamborough
Dr. Trevor Markfield assists Flamborough with medical or forensic expertise, forming a cooperative professional bond.
Sir Clinton Driffield
Markfield and Driffield share a mutual respect and friendly rapport, often discussing the case as equals.
Silverdale
Markfield and Silverdale interact in a clinical or investigative context, with Markfield possibly treating or examining Silverdale.
Dr. Ringwood
The two doctors share a collegial friendship, often discussing medical matters and the case together.
Silverdale
Markfield and Silverdale interact in a clinical or investigative context, with Markfield possibly treating or examining Silverdale.
Inspector Flamborough
Dr. Trevor Markfield assists Flamborough with medical or forensic expertise, forming a cooperative professional bond.
Sir Clinton Driffield
Markfield and Driffield share a mutual respect and friendly rapport, often discussing the case as equals.
Sir Clinton Driffield
Markfield and Driffield share a mutual respect and friendly rapport, often discussing the case as equals.
Inspector Flamborough
Dr. Trevor Markfield assists Flamborough with medical or forensic expertise, forming a cooperative professional bond.
Dr. Ringwood
The two doctors share a collegial friendship, often discussing medical matters and the case together.
Dr. Ringwood
The two doctors share a collegial friendship, often discussing medical matters and the case together.
Silverdale
Markfield and Silverdale interact in a clinical or investigative context, with Markfield possibly treating or examining Silverdale.

Relationship notes

How these ties play out is in the reading companion — open the free preview.

See Dr. Trevor Markfield in I: The Dying Man

In the story

Dr. Trevor Markfield appears across 8 companion beats. Open any chapter in the free preview to see the notes beside the text.

I: The Dying Man
A visitor who shares gossip about Hassendean and Mrs. Silverdale, hinting at a scandal.
VII: The Fly in the Amber
Initially surprised by the visit, agrees to assist with poison analysis, but becomes evasive when the cigarette-holder is shown; reveals he saw Dr. Silverdale with Avice Deepcar.
X: Information Received
Confirms the poison as hyoscine, shows the chemical store, and reveals his car number GX.9074 was involved in a fog incident.
XIII: The Murder of the Informer
Mentioned as a possible male witness for Silverdale; Flamborough distrusts his cooperation.
XIV: The Jacket
Questioned by Flamborough about the torn cloth and button; initially evasive but later cooperates; interjects to suggest someone might have borrowed Silverdale's coat.
Mr. Justice
The chemist and murderer, confronted at home; admits to the killings but tries to plead self-defense for the bungalow murder.
XVIII: The Connecting Thread
Confesses to the murder of Yvonne Silverdale, the affair, and the framing of Silverdale; triggers an explosion after signing his statement.
Excerpts from Sir Clinton’s Notebook
Prime suspect; his movements, access to hyoscine, and possible guilt in the Heatherfield burglary and murders are detailed.

Chapter companion notes

Spoil-light check-ins for Dr. Trevor Markfield unlock in the free preview.

See Dr. Trevor Markfield in I: The Dying Man