On Levi Prince’s third summer at Camp Classic, he’s torn between two responsibilities. On the one hand, his parents expect him to watch over his little sister Abby, who has no clue their summer camp is a haven for mythical creatures. On the other hand, Mr. Dominic wants him to train at Fort Terra, a full day’s hike away from his sister, because of Levi’s previous encounters with the demon sorcerer Deceptor. Although he enjoys training with his friends, Levi finds life at Fort Terra difficult thanks to the ongoing tension between him and Hunter and the stress of having his former kidnapper Regin as his chaperone. When the woman Regin claims to be the evil sorceress Anna appears, Levi faces a whole new challenge.