The Hound of the Baskervilles

'Never in the delirious dream of a disordered brain could anything more savage, more appalling, more hellish be conceived than that dark form and savage face'.
The coroner may have ruled death by natural causes, but Sherlock Holmes knows there's something more sinister behind Sir Charles Baskerville's demise. The question is, could he really have fallen victim to the legendary phantom hound, the curse said to have haunted his ancestors for generations? Or is this the work of a very real and calculating murderer?