Slime-Moles were blind, burrowing creatures usually found in gyle goblin colonies, which excreted a slime called mole glue from slime sacs on the sides of their bellies. This was used as a varnish for Librarian Knights' sumpwood skycraft, giving them the ability to hover. Their skin, like spindlebugs and milchgrubs, was completely transparent, revealing all of the organs inside. They had two large legs on the front of their large, slug-like bodies, and two small legs in the back. Their mouths consisted of tube-like protuberances on the front of the body, ringed by a multitude of eyes.