"The Hound of the Baskervilles" is a detective novel written by Arthur Conan Doyle, featuring the famous detective Sherlock Holmes and his friend Dr. John Watson. The story is set in the eerie moors of Devonshire, where a legendary supernatural hound is said to haunt the Baskerville family. When Sir Charles Baskerville is found dead under mysterious circumstances, Holmes and Watson are called to investigate. The novel explores themes of rationality versus superstition, as Holmes uses logic and deduction to uncover the truth behind the legend. As they delve deeper, they encounter various characters and clues that lead them to a shocking revelation about the true nature of the hound and the Baskerville curse.