"Chase, Evelyn, and Knox must gather together disparate forces to save not just Ayda, but their own world. The three young people have returned through the fog to fulfill their promise to the Keepers on the island of Ayda, whose four realms are in turmoil. But in Exor, Dankar's evil forces continue to grow as he corrupts and coerces all in his domain, with the final intent of gaining total control of Ayda so he may take his battle to the world beyond the fog the world of Chase, Evelyn, and Knox. The stones of power that fuel the other three realms and their people weaken as Dankar harnesses more energy. Chase, Evelyn, and Knox each one struggling in a different realm are on a desperate quest to learn more about their own powers and halt what seems to be the inevitable destruction of Ayda."--Goodreads.