A minor note to World Building. I imagine that in the pony pov series verse, Griffinstone acts as a 'holy-land' of sorts for the griffins, being where they think the cradle of their civilization began... whether this is true or not is open for debate... Which kinda makes its decline into a heap that's barely a place let alone a kingdom without even its own currency (they use pony bits), and the local griffins having lost any sense of cultural identity, even more sad.