Hound of Baskervilles by Sir Arthur Conan Doyle

From the back of the book:
When Sir Charles Baskerville is found mysteriously dead in the grounds of Baskerville Hall, everyone remembers the legend of the monstrous creature that haunts the moor. The greatest detective in the world, Sherlock Holmes knows there must be a more rational explanation - but the difficulty is to find it before the hellhound finds him...