While holidaying in Norway, Glys Erlendson encounters an eerie woman deep in the forest. Thereafter she is plagued by frightening visions, which no one can explain. After a terrifying, near-death experience, Glys discovers that she is not human, and belongs to a secretive race known as Enchanters. Fearful of her destiny, yet unable to remain in the human world, Glys is stalked by a host of sinister creatures who identify her as a future opponent. A grim warrior-magician named Tarune is sent to guide her safely to Myradelle, an Enchanter domain. But danger lurks at every step; in order to survive, Glys must embrace Mystiir, the limitless power of nature. To do so she must abandon her human shell, and accept what lies underneath. Aided by powerful companions, Glys' transformative journey leads her into dreamlike, prismatic Enchanter realms, a human city dominated by murderous Changelings, and into the terrifying Noctivoll Underworld, where her ultimate destiny – and that of the entire world – is finally revealed.