A Study in Scarlet
By Arthur Conan Doyle
"You have been in Afghanistan, I perceive." With these few words, Holmes astonishes Watson for the first, if not the last, time on the occasion of their meeting. A mysterious corpse without wounds and a bloody design on the wall nearby inaugurates their first case of detection.
This is the beginning of Sherlock Holmes' many adventures. It is also available as a graphic novel, video, audio, or as part of most Sherlock Holmes collections.