HomeMysteryThe Sign of the Four

Cover of The Sign of the Four

Mystery · 2018 · G

The Sign of the Four

by Arthur Conan Doyle

A woman. A treasure. A wooden-legged man. Holmes found it all perfectly stimulating.

The Science of Deduction Sherlock Holmes took his bottle from the corner of the mantel-piece and his hypodermic syringe from its neat morocco case. With his long, white, nervous fingers he adjusted the delicate needle, and rolled back his left shirt-cuff. For some little time his eyes rested thoughtfully upon the sinewy forearm and wrist all dotted and scarred with innumerable puncture-marks. Finally he thrust the sharp point home, pressed down

ForAll agesGenreMysteryLength188 pagesRead time~5 hours

This analysis was generated by AI from publicly available reader reviews, literary criticism, and book discussions. It has not been verified by a BookLens community reviewer and may contain errors. Be the first to verify →

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What's in this book, at a glance — five things readers want to know before they start.

Violence

Barely any

Mild; period crime and adventure including a murder

Language

None

No strong language

Sexual Content

None

No sexual content

Substance Use

Barely any

Mild; Holmes's cocaine use is referenced

Emotional Intensity

None

No psychological concerns; classic detective fiction

What this book is about

The second Sherlock Holmes novel follows Holmes and Watson as they investigate a case brought to them by Mary Morstan, whose father has disappeared and who has been receiving anonymous pearls for years. The case involves the Agra treasure, a revenge plot reaching back to India, and Watson's fateful meeting with his future wife. One of the most entertaining entries in the Holmes canon, showcasing Holmes's methods at full power.

Notes for sensitive readers

Reader-flagged moments and themes that may affect your experience.

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