A Study in Scarlet is the first novel of Sir Arthur Conan Doyle about the amazing adventures of Sherlock Holmes. This book is significant because it depicts the first meeting between Holmes and Watson. At the beginning, Holmes asthonishes Dr. Watson by reminding him of his life in Afghanistan. Later, Holmes and Watson agree to live together as a way to share the expensives of an apartment downtown.
The novel is divided in two halves. One half talks about a crime, committed in Brixston Road, and also about how Holmes gathers the proof that later will leaad him to the murderer. Before Holmes can figure out who is the responsible for that crime, another man is killed, presumably by the same person.
Holmes firmly resolves to solve the case despite the fact that he won't be given any credit of it. For this purpose, he makes up a plan using a wedding ring he grabbed at the crime scene. After placing and ad in the newspaper, asking for the ring owner, Holmes is visited by a fellow disguised as an old woman. Carefully, Dr. Watson and Holmes ask this old lady about the ring owner and how this article could have reached such a strange place. Minutes later, Holmes talks to some street kids and asko them to do him a favor. Holmes is confused because of the wedding ring and its owner, and after giving some thought to it, he is visited for one the detectives that run the case. He affirms that the the case is solved and the murderer is now jailed. Holmes can't stand the surprise and tells him to explain how he solved the case. Holmes hears the story and realizes who the real murderer is. Holmes feels so certain of his result as to give the detective and Dr. Watson a ride around the city. When they're on the street, a couple of kids show Holmes a cab, its driver Jefferson Hope. Holmes takes out his handcuffs and catches Hope's wrist. Proudly he says, "Gentlemen, this is the man we've been looking for".