Publisher's Synopsis
Part I leads with a heading which establishes the role of Dr. Watson as narrator and sets up the narrative stand-point that the work to follow is not fiction, but fact: "Being a Reprint from the Reminiscences of John H. Watson, MD, Late of the Army Medical Department." The story begins in 1881, when Dr. Watson, having returned to London from Afghanistan, runs into an old friend Stamford at the Criterion Restaurant, who had been a dresser under him at St. Bartholomew's Hospital. Watson confides in Stamford that, due to a shoulder injury that he sustained in the Anglo-Afghan War at the Battle of Maiwand, he has been forced to leave the armed services and is now looking for a place to live. Stamford mentions that an acquaintance of his, Sherlock Holmes, is looking for someone to split the rent at a flat at 221B Baker Street, but he cautions Watson about Holmes's eccentricities. Stamford takes Watson back to St. Bartholomew's where, in a laboratory, they find Holmes experimenting with a reagent, seeking a test to detect human haemoglobin. Holmes explains the significance of bloodstains as evidence in criminal trials. After Stamford introduces Watson to Holmes, Holmes shakes Watson's hand and comments, "You have been in Afghanistan, I perceive?" Though Holmes chooses not to explain why he made the comment, Watson raises the subject of their parallel quests for a place to live in London, and Holmes explains that he has found the perfect place in Baker Street. At Holmes's prompting, the two review their various shortcomings to make sure that they can live together. After seeing the rooms at 221B, they move in and grow accustomed to their new situation. Watson is amazed by Holmes, who has profound knowledge of chemistry and sensational literature, very precise but narrow knowledge of geology and botany; yet knows little about literature, astronomy, philosophy, and politics. Holmes also has multiple guests visiting him at different intervals during the day. After much speculation by Watson, Holmes reveals that he is a "consulting detective" and that the guests are clients. Facing Watson's doubts about some of his claims, Holmes casually deduces to Watson that one visitor, a messenger from Scotland Yard is also a retired Marine sergeant. When the man confirms this, Watson is astounded by Holmes' ability to notice details and assemble them.