The Volcano Island Vermin lived on Volcano Island and captured travelers by laying piles of drugged fruit on the beach. Beau, Dulam, Denno, Cardo and several other mice from Luke the Warrior's tribe were caught this way. The vermin included a tribe of ratlike rodents who painted themselves with dyes of various colors and adorned themselves with seashells, a female weasel leader named Marrahagga, and a giant snake called Slariss who ate the live offerings of the tribe.