Oh, hey! Welcome to my home! I live here, in this cave, over the flats on the underground. Come in! You are welcome. Wait, are you asking about this dog stickered in this boulder? Ah, ignore him, he know what he did. If you don't want end like this, don't mad the bear. :)

This a doodle i did with Wally, the dog, a character from  Skully-Bonehead.

Maybe you are asking about Ursini's home and the sign of Oldground Vile. Ursini live in a cave where it is on a underground town. Downstairs you can find some other flats, where live Ursini's neighbours. Imagine that the cave is like the attic of a building and when you go downstairs you will find the town.