What extent can the The Hound of the Baskervilles be regarded as a gothic novel?
First of all I believe the title is in the plural the HoundS of the Baskervilles. It is not a Gothic novel, though it has some Gothic or (woodsy horror) elements the plot is taken apart by the Detective Sherlock Holmes as a matter of deductive logic, not some sort of supernatural action, like werewolves. The story is a detective or mystery/crime novel and not in any sense of the word a science-fiction novel I do not know why or how it got on the(Science Fiction) category.