Sherlock Holmes, a fictional character created in 1887 by Sir Arthur Conan Doyle, is a ‘detective consultant’ in London in the late nineteenth century, known for his intelligence and his skillful use of observation and deductive reasoning to solve difficult cases. This type of investigator, known for his extreme intelligence, influenced the majority of later detective fiction. He is the creator of his own profession ‘detective consultant,’ which consists of helping clarify the particularly difficult cases to the official detectives of Scotland Yard, or private detectives, like is the case with detectives Lestrade, Gregson, Hopkins, and many others who are left with a resolved crime after working with Holmes. The Adventures of Sherlock Holmes is the masterpiece of Conan Doyle. It survives through changes in time and customs, as a challenger to the reader, who will forever be trapped in the mysterious energy that surrounds this character.Sherlock Holmes, personaje ficticio creado en 1887 por Sir Arthur Conan Doyle, es un “detective asesor” del Londres de finales del siglo XIX, que destaca por su inteligencia y hábil uso de la observación y el razonamiento deductivo para resolver casos difíciles. Es el prototipo de investigador cerebral por excelencia, e influyó en gran medida en la ficción detectivesca posterior. Él es el creador de su propia profesión, “detective consultor”, que consiste en ayudar a aclarar los casos que presentan dificultades superiores a las habilidades que poseen los detectives oficiales de Scotland Yard o detectives particulares, como es el caso del detective Lestrade, Gregson, Hopkins y otros tantos que se quedan con el éxito de la resolución del crimen. Las aventuras de Sherlock Holmes es la obra cumbre de Conan Doyle. Sobrevive al tiempo y a las costumbres, ya que supone un reto al lector, que siempre quedará atrapado en la energía misteriosa que envuelve a este personaje.