True trolls were gigantic ferocious beings who were capable of tearing down cities and scattering armies. They once broke through into Kaevil from their underground lairs and ravaged the land. Each raid of theirs caused years of devastation and horror and required great effort to put down. The last troll incursion was 200 years ago and it was defeated by the royal house taking the field of battle with a coalition of the other houses at their back. Great spells were woven over the fields of battle and over the deep fissures in the earth to seal the beasts away forever. Perhaps the spells worked, for no troll has been seen above the ground since then.