The hound of the Baskervilles

"He was running, Watson - running desperately, running for his life, running until he burst his heart and fell dead upon his face... " What had it been, looming through the darkness, that could have inspired such terror? A spectral hound loosed from hell; or a creature of infinite patience and cunning, with a smiling face and a murderous heart... It was a brave man who would cross the wild Devon moorlands in darkness. For the ancient legend of the hound of the Baskervilles had persisted in family history for generations. Indeed it was Sir Charles's mysterious death in the grounds of Baskerville Hall that brought Sherlock Holmes to the scene of one of his most famous and intriguing cases.