Selena continues to learn to control her magical powers and come to terms with her destiny. She struggles to balance her feelings for Tristan during her training, while learning about witch society when something goes terribly wrong. A suddenly defenseless Selena must survive Darien's countless attacks and find a way to undo the deadly spell that has been cast upon her. Tristan, Lexi and the others race the clock to save Selena. They must enter the Hidden City to uncover how Selena lost her powers and solve the riddle to get them back before it's too late.