What do do with the weresheep? Secret Weresheep Level, what else?
Maybe there are 2-5 books of this lore scattered around the game world (maybe near sheep, or they drop from certain sheep when you kill them) and if you collect them all, there's a clue to the secret weresheep dimension.
Maybe it's a bonus dungeon for testing your strength/build before the final boss (or maybe accessible from a saved-game made after beating the final boss.)
