A Study in Scarlet

Chapter by chapter

A structural map of the novel — the shape of the case, not its text. Read the full work free at Project Gutenberg.

1. Part I — Ch. 1: Mr. Sherlock Holmes Invalided home from Afghanistan and short of money, Watson is introduced to a prospective flatmate at work in the Barts laboratory, where the stranger has just perfected a test for old bloodstains. 🎩 The surprise: the stranger names Watson's Afghan service the instant they meet — the reader's first, startling taste of the method, before it has even been explained.
2. Part I — Ch. 2: The Science of Deduction Sharing rooms at 221B, Watson tries to make sense of his baffling companion, listing the strange gaps in his knowledge, then reads the man's own magazine article claiming a life can be read from trifles. 💡 Lesson: Holmes states his creed — observation and inference are skills to be trained like any science, and the trained eye sees a history where others see nothing.
3. Part I — Ch. 3: The Lauriston Garden Mystery A telegram brings the pair to an empty house where a man lies dead without a wound, a word scrawled in blood on the wall, and the Yard already theorising. 🔍 Method: before he enters, Holmes reads the kerb and the muddy path — cab wheels, hoof-marks, the height and stride of the killer — reconstructing the arrival the police have trampled over.
4. Part I — Ch. 4: What John Rance Had to Tell Holmes questions the constable who found the body and confirms his reconstruction of how the murderer came and went. 🎩 The surprise: Holmes reveals the "drunk" the constable had shooed away in the night was almost certainly the killer himself, doubling back for a dropped clue — a suspect handed to the professional, and let go.
5. Part I — Ch. 5: Our Advertisement Brings a Visitor Holmes advertises a ring found at the scene to bait the murderer; instead a shabby old woman comes to claim it, and slips away when followed. 💡 Lesson: even a sound trap can be beaten by an opponent who anticipates it — the "old woman" was an accomplice in disguise, and Holmes takes the small defeat without complaint.
6. Part I — Ch. 6: Tobias Gregson Shows What He Can Do The Yard's Gregson triumphantly arrests a young man on circumstantial evidence; the case looks closed to everyone but Holmes — until a second death proves it wrong. 🎩 The surprise: while the professionals celebrate the obvious suspect, Holmes quietly knows better, setting the amateur-versus-Yard contrast that runs through the whole canon.
7. Part I — Ch. 7: Light in the Darkness Holmes springs his own trap in the Baker Street sitting room, clapping handcuffs on a summoned cab-driver as the murderer, to the Yard's astonishment. 🔍 Method: Holmes had reasoned the killer needed the anonymity of a cab-driver's trade to stalk his victims across London, and sent the Irregulars to find the man.
8. Part II — Ch. 1–5: The Country of the Saints The narrative leaps decades back to the Utah desert: John Ferrier and the orphan Lucy saved by a Mormon wagon train, Lucy's forced betrothal, and the vengeance that will drive one man around the world. 💡 Lesson: the motive is a whole backward-running tragedy — Doyle's two-part structure argues that every crime has a history as long as the investigation is short.
9. Part II — Ch. 6–7: Reminiscences & Conclusion Back in London the dying prisoner confesses the full story, and Holmes retraces for Watson the chain of inference that led him to the cab-driver while the Yard floundered. 🔍 Method: the reader finally watches observation become conclusion — the whole solve hung on trifles noticed at the scene and read correctly.