What if "Hounds of the Baskervilles" was a true story? Well in the world of Victoriana, it can be! This is a "Penny Dreadful" or an adventure for Victoriana 1st Edition (aka 1867 Edition).
This adventure though is based more on the old legends of the Black Dog or Old Shuck on the English countryside. As such it is a good adventure for any Victorian era game with a heavy emphasis on magic or the supernatural. One could easily run this under Ghosts of Albion or Cthulhu by Gaslight.