This document is the table of contents and opening chapter of Arthur Conan Doyle's novel A Study in Scarlet. It introduces Dr. John Watson and his friend Stamford, who is trying to help Watson find lodging in London. Stamford mentions another man, Sherlock Holmes, who is looking for someone to share rooms with. Watson agrees to meet Holmes at Stamford's urging. At the hospital laboratory, Stamford introduces Watson to Holmes, who has made an exciting new discovery related to blood and hemoglobin testing.