I thought those were Black Demons? And after you teleport you go north into the volcano and kill them. There is a bank nearby if you need to. No, blacks are in taverly dungeon. I'm talking about entrana dungeon (which is impossible to use if you don't make your own equipment after getting past entrana).
What's you're crafting and fletching levels? If you can make your own d hide/ammo go to entrana dungeon. Bring 6 hides of the highest level color you can craft (needle and thread too). If you bought the ability to make broad bolts bring some unf bolts and feathers and unstrung xbow and string. Put everything together after you pass through entrana and are in the dungeon. And boom, you have 2 greater to yourself that virtually noone uses.