Context & Introduction

Understanding the context of The Sign of Four is essential for achieving top marks at GCSE. The examiner wants to see that you can connect Conan Doyle's choices to the world he was writing in. This lesson covers Conan Doyle's life, the Victorian era, the British Empire, and why The Sign of Four was the perfect novel for its time.

Arthur Conan Doyle: The Basics

Fact	Detail
Born	1859, Edinburgh, Scotland
Died	1930
Profession	Doctor and author
The Sign of Four published	1890
Genre	Detective fiction / crime fiction
Detective	Sherlock Holmes
Narrator	Dr John Watson

Conan Doyle created Sherlock Holmes in 1887 with A Study in Scarlet. The Sign of Four was the second Holmes novel, commissioned by the American magazine Lippincott's Monthly Magazine after a dinner meeting with Oscar Wilde in 1889.

The Victorian Era

The Sign of Four was published during the late Victorian period (Queen Victoria reigned 1837–1901). Understanding Victorian society is crucial to understanding the novel.

Key features of Victorian society

Class hierarchy — rigid social stratification from the aristocracy down to the working poor.
Patriarchal — women had limited legal rights; they could not vote and were expected to be domestic, moral, and submissive.
Industrialisation — Britain was the world's leading industrial power; cities like London grew rapidly but with vast inequality.
Scientific progress — Victorians placed great faith in science, reason, and empirical evidence.
Empire — Britain controlled the largest empire in history; imperial expansion was widely celebrated.
Moral anxiety — despite outward respectability, Victorians were anxious about crime, poverty, drugs, and moral decay.

The British Empire

The British Empire is one of the most important contextual ideas for The Sign of Four:

At its height, the British Empire covered approximately one quarter of the world's land surface. India was considered the "jewel in the crown."

The novel's plot is rooted in the Indian Rebellion of 1857 (also known as the Indian Mutiny or the First War of Indian Independence). British soldiers and administrators exploited India for wealth, and the treasure at the centre of the story — the Agra treasure — symbolises the plunder of Empire.

Key contextual points about Empire

Point	Relevance to the novel
Indian Rebellion of 1857	Jonathan Small's backstory is set during and after this event
Exploitation of Indian wealth	The Agra treasure represents imperial plunder
British military presence in India	Watson is an army doctor who served in Afghanistan; Small served in India
Victorian attitudes to race	The Andaman Islander, Tonga, is described in deeply racist terms
The "exotic other"	India is presented as dangerous, mysterious, and morally corrupting

Examiner's tip: Always link the Agra treasure to the context of Empire. For example: "Conan Doyle uses the Agra treasure to explore the moral cost of imperial expansion. The treasure, stolen from an Indian rajah during the upheaval of the 1857 Rebellion, brings corruption, greed, and death to every British character who pursues it — suggesting that the wealth of Empire is morally tainted."

Science, Reason & the Victorian Detective

Sherlock Holmes embodies the Victorian belief in rationalism and scientific method:

Holmes uses deduction (reasoning from evidence to conclusions).
He applies forensic science — analysing footprints, cigar ash, chemicals, and handwriting.
He represents the power of the rational mind to impose order on chaos.

This was deeply appealing to a Victorian audience who believed in progress through science.

The "Science of Deduction"

Holmes refers to his method as a "science" and approaches crime as a scientist would approach a problem:

He treats each case as an experiment — gathering evidence, forming hypotheses, and testing them through observation.

Scientific method	Holmes's equivalent
Observation	Examining crime scenes, reading physical clues
Hypothesis	Forming theories about the crime
Testing	Following leads, verifying theories through action
Conclusion	Identifying and capturing the criminal

Examiner's tip: Use the term rationalism in your essays — it shows sophisticated understanding of the historical context. You could write: "Conan Doyle presents Holmes as the embodiment of Victorian rationalism — his ability to decode the apparently inexplicable through logical analysis reflects the era's faith in science as the key to understanding and controlling the world."

Victorian London

London in The Sign of Four is presented as a city of contrasts:

Wealthy London                    vs.        Criminal London
--------------------------------------------------------------
Baker Street (Holmes's rooms)                Pondicherry Lodge (dark, sinister)
Upper Norwood (Sholto estate)                The Thames (foggy, dangerous)
Mary Morstan (genteel, modest)               Jonathan Small (criminal, outcast)
Order and reason                             Chaos and crime

The novel takes the reader through London's geography — from comfortable middle-class sitting rooms to fog-bound riverbanks — mirroring the journey from order to chaos that crime represents.

The fog motif

Victorian London was notorious for its fog (a mix of natural fog and industrial pollution known as "pea-soupers"). In the novel, fog and darkness are used as pathetic fallacy:

Fog obscures truth, just as the mystery obscures the solution.
The Thames chase scene takes place in darkness and mist, heightening the danger.
As Holmes solves the case, clarity emerges — the fog lifts metaphorically.

Drug Use and the Victorian Context

One of the novel's most striking opening scenes is Holmes injecting himself with cocaine:

"Which is it to-day?" I asked, "morphine or cocaine?"

In the 1890s, cocaine was legal and widely available. It was used in medicines, tonics, and was not yet fully understood as addictive. However, Conan Doyle — a trained doctor — was clearly aware of the dangers, and Watson's disapproval reflects a growing medical anxiety about drug use.

Contextual point	Relevance
Cocaine was legal in Victorian Britain	Explains why Holmes uses it openly
Medical profession was concerned	Watson's disapproval reflects professional opinion
Holmes uses drugs when bored	Links to themes of intellect vs idleness
Conan Doyle was a doctor	His medical knowledge shapes the portrayal

Examiner's tip: Avoid moral judgement about Holmes's drug use. Instead, analyse it contextually: "Conan Doyle uses Holmes's cocaine habit to explore the tension between intellectual brilliance and self-destruction. Holmes craves stimulation — when his mind is unoccupied, he turns to artificial stimulation, suggesting that his extraordinary intellect is both a gift and a burden."

Genre: Detective Fiction

The Sign of Four belongs to the genre of detective fiction, which was relatively new in the 1890s.

Conventions of detective fiction

Convention	How The Sign of Four fulfils it
A brilliant detective	Sherlock Holmes — rational, eccentric, observant
A loyal companion/narrator	Dr Watson — admiring, reliable, audience surrogate
A mystery to solve	The disappearance of Captain Morstan; the Agra treasure
Clues and red herrings	The wooden-legged man, the small footprints, the poison dart
A pursuit/climax	The Thames boat chase
A resolution	The mystery solved, the criminal caught
Justice restored	Small is arrested; Mary receives (lost) justice

Conan Doyle was influenced by Edgar Allan Poe (who created the fictional detective C. Auguste Dupin) and Emile Gaboriau (whose detective Lecoq influenced the genre). Holmes himself dismisses these predecessors, reflecting Conan Doyle's ambition to surpass them.

The Original Audience

Conan Doyle's audience was the Victorian middle class — literate, respectable, and fascinated by both science and sensation.

What they valued	How the novel appeals to them
Rationality and order	Holmes solves the case through logic and science
Empire and patriotism	The novel features India, the military, and adventure
Moral certainty	Good triumphs over evil; justice is served
Sensation and excitement	Murder, treasure, a boat chase, an exotic villain
Respectability	Watson and Mary represent proper Victorian values

Key Context Revision Checklist

Summary

The Sign of Four was written in a world of rapid scientific progress, imperial expansion, rigid class hierarchy, and moral anxiety. Conan Doyle's choices — from Holmes's rational method to the Indian treasure to the fog-bound Thames — are all shaped by this context. Understanding the Victorian world is the foundation for everything that follows.