Rat-like creatures have invaded the valley, destroying everything in their path. The local residents, led by Grandma Ben and Lucius, have united with the warriors of Veni-Yan. Strengthened in the cave of the Old Man, they are preparing to give the enemy a decisive battle.
Meanwhile, a hooded man intends to free the Lord of the Locusts with the help of a sacrifice. All that remains is to catch the very sacrifice in the form of Fawnie Bone... or Thorn.