"Heh, well, I think you'd only hear about it if you knew the old legend. Humans who climb it are said to disappear." Sans seals that cryptic statement with a wink. It's just an old wive's tale, or it used to be. Some prophecies have a way of fulfilling themselves.

"We had a war too once. Humans didn't like our magic too much, decided to wipe us out n' drive the rest of us under that mountain. We can't really leave, so I guess I'd say it's... pretty dark. And cramped. Sorta musty too, if I'm honest. The war was way before my time though, so I couldn't tell ya how it compares to the surface."