目次

１．作者について
２．代表作
３．時代背景

『緋色の研究』（あらすじ）
　A STUDY IN SCARLET.
　PART I
　Chapter 1 MR. SHERLOCK HOLMES.
　Chapter 2 THE SCIENCE OF DEDUCTION.
　Chapter 3 THE LAURISTON GARDEN MYSTERY
　Chapter 4 WHAT JOHN RANCE HAD TO TELL.
　Chapter 5 OUR ADVERTISEMENT BRINGS A VISITOR.
　Chapter 6 TOBIAS GREGSON SHOWS WHAT HE CAN DO.
　Chapter 7 LIGHT IN THE DARKNESS.
　PART II _The Country of the Saints._
　Chapter 1 ON THE GREAT ALKALI PLAIN.
　Chapter 2 THE FLOWER OF UTAH.
　Chapter 3 JOHN FERRIER TALKS WITH THE PROPHET.
　Chapter 4 A FLIGHT FOR LIFE.
　Chapter 5 THE AVENGING ANGELS.
　Chapter 6 A CONTINUATION OF THE REMINISCENCES OF JOHN WATSON, M.D.
　Chapter 7 THE CONCLUSION.

『四つの署名』（あらすじ）
　The Sign of the Four
　Chapter 1 The Science of Deduction
　Chapter 2 The Statement of the Case
　Chapter 3 In Quest of a Solution
　Chapter 4 The Story of the Bald-Headed Man
　Chapter 5 The Tragedy of Pondicherry Lodge
　Chapter 6 Sherlock Holmes Gives a Demonstration
　Chapter 7 The Episode of the Barrel
　Chapter 8 The Baker Street Irregulars
　Chapter 9 A Break in the Chain
　Chapter 10 The End of the Islander
　Chapter 11 The Great Agra Treasure
　Chapter 12 The Strange Story of Jonathan Small

『バスカヴィル家の犬』（あらすじ）
　THE HOUND OF THE BASKERVILLES
　Chapter 1 Mr. Sherlock Holmes
　Chapter 2 The Curse of the Baskervilles
　Chapter 3 The Problem
　Chapter 4 Sir Henry Baskerville
　Chapter 5 Three Broken Threads
　Chapter 6 Baskerville Hall
　Chapter 7 The Stapletons of Merripit House
　Chapter 8 First Report of Dr. Watson
　Chapter 9 The Light upon the Moor [Second Report of Dr. Watson]
　Chapter 10 Extract from the Diary of Dr. Watson
　Chapter 11 The Man on the Tor
　Chapter 12 Death on the Moor
　Chapter 13 Fixing the Nets
　Chapter 14 The Hound of the Baskervilles
　Chapter 15 A Retrospection

『恐怖の谷』（あらすじ）
　THE VALLEY OF FEAR
　PART I The Tragedy of Birlstone
　Chapter 1 The Warning
　Chapter 2 Sherlock Holmes Discourses
　Chapter 3 The Tragedy of Birlstone
　Chapter 4 Darkness
　Chapter 5 The People of the Drama
　Chapter 6 A Dawning Light
　Chapter 7 The Solution
　PART II The Scowrers
　Chapter 1 The Man
　Chapter 2 The Bodymaster
　Chapter 3 Lodge 341, Vermissa
　Chapter 4 The Valley of Fear
　Chapter 5 The Darkest Hour
　Chapter 6 Danger
　Chapter 7 The Trapping of Birdy Edwards
　Epilogue