Three of the enthralling novels that brought us the world’s greatest fictional detective are gathered here in one volume. In 1887, Sir Arthur Conan Doyle’s mystery novel A Study in Scarlet unleashed for the first time the unflappable Sherlock Holmes and his partner, Dr. John Watson. Watson and Holmes would go on to become two of the most widely admired characters in all of literature. The stories and novels that followed—including The Sign of Four and The Hound of the Baskervilles—expanded the duo’s practice at 221B Baker Street, thrilling readers with the impeccable powers of deduction that inevitably guide Holmes toward any mystery’s solution. A Study in Scarlet, a tale of Mormons and murder, is a drama of long-simmering revenge that plays out on the gaslit streets of London but has its dark roots in the pioneer settlements of Utah. The Sign of Four weaves together a stolen treasure from India, poison darts, and double-crossing thieves, while The Hound of the Baskervilles sets the legend of a diabolical hellhound and an old family curse against the backdrop of a desolate, moonlit moor. All three novels are gripping, timeless, and exquisitely plotted—beloved and indispensable classics of the detective genre.

'I crave for mental exaltation. That is why I have chosen my own particular profession, or rather created it, for I am the only one in the world.' Mary Morstan receives a large pearl through the post once a year without any clue as to the sender. When her intriguing correspondent requests a meeting, Holmes and Watson take on the case. Together the trio race through London to uncover the secrets of the Sholto family, who hold the key to uncovering the whereabouts of Mary's father and the existence of a treasure stemming from a crime committed years ago in India. The Sign of the Four has been a crucial part of the Sherlock Holmes canon since its first publication in 1890. It explores theft, betrayal, and murder in the larger context of the British Empire at a time of national upheaval, and the novel's flashbacks to India during the 'Mutiny' and its aftermath call into question the consequences of that imperial venture. Caroline Reitz's new introduction and notes draws attention to some often-overlooked context of the story, such as its original publication in Lippincott's Monthly Magazine, its representation of imperial violence, and changing gender roles. ABOUT THE SERIES: For over 100 years Oxford World's Classics has made available the widest range of literature from around the globe. Each affordable volume reflects Oxford's commitment to scholarship, providing the most accurate text plus a wealth of other valuable features, including expert introductions by leading authorities, helpful notes to clarify the text, up-to-date bibliographies for further study, and much more.

March 24. The spring is fairly with us now. Outside my laboratory window the great chestnut-tree is all covered with the big, glutinous, gummy buds, some of which have already begun to break into little green shuttlecocks. As you walk down the lanes you are conscious of the rich, silent forces of nature working all around you. The wet earth smells fruitful and luscious. Green shoots are peeping out everywhere. The twigs are stiff with their sap; and the moist, heavy English air is laden with a faintly resinous perfume. Buds in the hedges, lambs beneath them-everywhere the work of reproduction going forward! I can see it without, and I can feel it within. We also have our spring when the little arterioles dilate, the lymph flows in a brisker stream, the glands work harder, winnowing and straining. Every year nature readjusts the whole machine. I can feel the ferment in my blood at this very moment, and as the cool sunshine pours through my window I could dance about in it like a gnat. So I should, only that Charles Sadler would rush upstairs to know what was the matter. Besides, I must remember that I am Professor Gilroy. An old professor may afford to be natural, but when fortune has given one of the first chairs in the university to a man of four-and-thirty he must try and act the part consistently.