Lazy Prince Lumen is asked to defend a village from the Invectids, but he makes a deal instead. At first the Invectids promise that they will settle in their own village and never attack. The Invectids attack again, and Lumen fights back.
Hunter and Corona are on their way to Arachna Castle, the nyumbani of the buibui Riders. On the way, they must save a village being attacked kwa Invectids led kwa Grasshop of the Big Four.