“The view was magnificent, and from where I stood there was every opportunity of seeing it. The castle is on the very edge of a terrific precipice. A stone falling from the window would fall a thousand feet without touching anything! As far as the eye can reach is a sea of green tree tops, with occasionally a deep rift where there is a chasm. Here and there are silver threads where the rivers wind in deep gorges through the forests......
Let me warn you with all seriousness, that should you leave these rooms you will not by any chance go to sleep in any other part of the castle. It is old, and has many memories, and there are bad dreams for those who sleep unwisely. Be warned!” source
Bram Stoker’s Dracula 1897