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Content snapshot
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Violence
Barely any
Mild; Victorian murder mystery and the historical violence of the Pinkerton era
Language
None
No strong language
Sexual Content
None
No sexual content
Substance Use
None
No substance use
Emotional Intensity
None
No psychological concerns; pleasurable puzzle solving
What this book is about
The last of Arthur Conan Doyle's four Sherlock Holmes novels follows the great detective as a cryptic warning leads him into a case that stretches across an ocean — from an English manor house to the violent history of a Pennsylvania mining community. Doyle structures the novel in two halves, the second functioning as a standalone historical thriller.
Notes for sensitive readers
Reader-flagged moments and themes that may affect your experience.
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