Luminorm

A Luminorm is a giant wormlike beast that lives underground in Orthgar. One is the boss of the Mining Grid.

Luminorms are subterranean omnivorous worms. They have translucent black skin with glowing blue veins, and many colors of glowing crystals on their sides and back. Though they often swallow prey whole, Luminorms have sharp, flat fangs used to cut through thick armor. Near their head, they have six to eight glowing tendrils used to sense movement and heat of prey. Because of this, Luminorms hate the cold.

SInce Luminorms are blind, they hunt anything that moves. Prey is scarce in the deep underground, and hunger can force them towards the surface. They can confuse mining equipment for food, and will attack unlucky miners and damage equipment. Dwarves therefore have a "worm policy." Every miner carries a bag of ice to disguise their heat signature, and must practice staying statue-still in case a Luminorm is in the area.