This document provides biographical information about Sir Arthur Conan Doyle and summarizes his famous work The Hound of the Baskervilles. It discusses that Conan Doyle was born in Scotland and originally practiced medicine, but found success as an author writing Sherlock Holmes stories. It describes how Holmes was killed off but later revived due to public demand, with The Hound of the Baskervilles taking place earlier in the timeline. The document also briefly touches on Conan Doyle's life, death, and some quirky details about his belief in fairies.