Trolls are one of the intelligent species, who age in reverse. They are mentioned in Lodestar. Their leader is Empress Pernille. Empress Pernille was one of the leaders that attended the summit at Luminara. She is said to look like "a cross between a sloth, a pot-bellied pig, and a small child, with fuzzy skin, an upturned nose, and a short chubby body dressed in a purple tutu" (Lodestar, page 606). However, this is not how all trolls look, because Empress Pernille is an older troll.