Siblings Andrew and Abby have been living with their aunt Olivia near Hargart's Swamp ever since their parents died in a car accident. Legendary around the small town, Hargart's Swamp is the place where no one ever goes, not since eleven-year old LeAnn Griffin was found there with a mysterious large claw mark on the side of her leg. One day, Abby, Andrew, and their friend Chex find themselves at the dark dank swamp when Chex's dog Pepper chases a rabbit through the woods. They soon realize they should have heeded the warnings to stay away. Greeted by a creature unlike anything they've ever seen, the kids just know they're going to end up like LeAnn and the others-until a strange looking child appears and the evil creature disappears. Their new friend Calix explains that the first creature they encountered is Lavesque, the guardian of the underwater entrance to the mysterious and magical word of Levlor. As if that wasn't enough, Calix tells Andrew and Abby that their parents are alive, and were taken to Levlor because their mother was attacked by Lavesque and was in need of healing. In Levlor, their mother, Lyla, has been made a princess, while their father, Lester, has been turned into an evil creature much like Lavesque. Calix offers to take the two kids to Levlor to see their parents. It promises to be a dangerous journey-a thrilling adventure-and the only way that Andrew and Abby will ever see their parents again.