The Great Protectors — Clint Gleason

A devastating quake drives the Bullik-Braunzin Clan to relocate and, soon after, unstoppable foes emerge, intent on killing them all. The warriors must make battle preparations while urgently solving the mystery of an enemy no one knows how to defeat. If they don't figure something out, they'll be destroyed like so many who have already fallen. Will the clan prevail?