Believed to be another ancient Drow creation, one that lost their usefulness to their culture long ago and adapted itself to life in the wilds, a tunnel spider is capable of tunneling through solid rock, leaving a passage wide enough for a humanoid. Their warrens are labyrinthine mazes with countless dead-ends and pitfalls. A tunnel spider burrows to just beneath the surface of the cave floor, then bursts forth when prey wanders close.
