The Case with Nine Solutions · Character

Silverdale

A research chemist whose marriage has quietly collapsed, leaving him pursuing Avice Deepcar while his wife Yvonne flaunts a younger man.

supporting

Also known as Dr. Silverdale

First appearance: II: The House Next Door

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

See Silverdale in II: The House Next Door Book page

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Silverdale is an alkaloid specialist at the Institute, respected in his field but privately miserable in a marriage where husband and wife have agreed to take separate roads. He has turned toward Avice Deepcar while Yvonne parades young Hassendean about town, and the scandal gives him motive for a divorce he probably cannot get. His professional expertise in the very poisons under investigation makes him both a resource and a suspect as the case unfolds.

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

See Silverdale in II: The House Next Door

Character Web

20 connections

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

Relationship types

Professional
Rivalry
Family
Other

Character groups

Main Investigation Team
Secondary Characters & Family
Protagonist

+15 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 · ambivalent
Flamborough interacts with Silverdale as a person of interest or witness in the case,… How this plays out →
Sir Clinton Driffield
rivalry · negative
Dr. Trevor Markfield
professional · ambivalent
Avice Deepcar
family · ambivalent
Dr. Ringwood
professional · ambivalent
Inspector Flamborough
professional · ambivalent
Flamborough interacts with Silverdale as a person of interest or witness in the case,… How this plays out →
Sir Clinton Driffield
rivalry · negative
Dr. Trevor Markfield
professional · ambivalent
Dr. Ringwood
professional · ambivalent
Inspector Flamborough
professional · ambivalent
Flamborough interacts with Silverdale as a person of interest or witness in the case,… How this plays out →
Avice Deepcar
family · ambivalent
Avice Deepcar
family · ambivalent

Inspector Flamborough
Flamborough interacts with Silverdale as a person of interest or witness in the case, maintaining a formal investigative dynamic.
Sir Clinton Driffield
Silverdale and Driffield are often at odds, with Silverdale possibly being a suspect or antagonist in the investigation.
Dr. Trevor Markfield
Markfield and Silverdale interact in a clinical or investigative context, with Markfield possibly treating or examining Silverdale.
Avice Deepcar
Avice Deepcar and Silverdale are likely related, possibly as siblings or through marriage, given their frequent and close interactions.
Dr. Ringwood
Dr. Ringwood likely provides medical care or assessment to Silverdale, creating a doctor-patient dynamic.
Inspector Flamborough
Flamborough interacts with Silverdale as a person of interest or witness in the case, maintaining a formal investigative dynamic.
Sir Clinton Driffield
Silverdale and Driffield are often at odds, with Silverdale possibly being a suspect or antagonist in the investigation.
Dr. Trevor Markfield
Markfield and Silverdale interact in a clinical or investigative context, with Markfield possibly treating or examining Silverdale.
Dr. Ringwood
Dr. Ringwood likely provides medical care or assessment to Silverdale, creating a doctor-patient dynamic.
Inspector Flamborough
Flamborough interacts with Silverdale as a person of interest or witness in the case, maintaining a formal investigative dynamic.
Avice Deepcar
Avice Deepcar and Silverdale are likely related, possibly as siblings or through marriage, given their frequent and close interactions.
Avice Deepcar
Avice Deepcar and Silverdale are likely related, possibly as siblings or through marriage, given their frequent and close interactions.

Relationship notes

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

See Silverdale in II: The House Next Door

In the story

Silverdale appears across 12 companion beats. Open any chapter in the free preview to see the notes beside the text.

II: The House Next Door
Dr. Silverdale, the husband of Yvonne, who is often out and whose whereabouts are uncertain.
VI: The Nine Possible Solutions
Reported to have returned home and gone to the Croft-Thornton Institute, where Sir Clinton and Flamborough plan to interview him.
VII: The Fly in the Amber
Mentioned as Dr. Markfield's chief and an alkaloid specialist; the cigarette-holder was made for him; he was seen dining with Avice Deepcar.
VIII: The Hassendean Journal
Caught in a lie about working all night at the Croft-Thornton; no light was seen in his room.
IX: The Creditor
Yvonne's husband; Renard notes that Silverdale did not mention the inheritance to Flamborough.
XII: The Silverdale Wills
Discussed as a prime suspect: he gains £12,000 by his wife's death and is free to marry Avice Deepcar.
XIII: The Murder of the Informer
Prime suspect; Flamborough theorizes he may have killed Whalley to prevent him from testifying.
XIV: The Jacket
Questioned about his alibi, lost cigarette holder, banjo playing, and the torn, bloodstained laboratory coat; cannot explain the coat's condition and appears nervous.
XV: Sir Clinton’s Double
Arrested on suspicion of the bungalow murder; his alibi with Avice is questioned.
XVI: Written Evidence
Implicated as the author of the letter discussing a plot involving hyoscine and Hassendean.
XVIII: The Connecting Thread
Framed by Markfield for the murder; his lab coat and alibi were manipulated.
Excerpts from Sir Clinton’s Notebook
Suspect; his lie about working late at the Croft-Thornton Institute is exposed; his cigarette-holder found at bungalow.

Chapter companion notes

Spoil-light check-ins for Silverdale unlock in the free preview.

See Silverdale in II: The House Next Door