Nerissa's powers continue to grow stronger and Will, Irma, Taranee, Cornelia and Hay Lin are concerned. After learning that Caleb is Herald of Candracar, Nerissa is determined to capture him and use him against the Guardians. As she plots her destruction of the Guardians and Caleb's, she enters the Guardians' dreams and quickly turning them into nightmares. She is everywhere, and the girls cannot hide from her. They must confront her... now.