"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 is called to investigate. Holmes and Watson uncover a web of family secrets and local legends as they delve into the history of the Baskervilles. They face various challenges, including the treacherous landscape and the sinister presence of the hound, ultimately revealing the truth behind the legend and the real culprit behind the murder.