Carter Mills lives in a world where people are protected by their invisible Guardian Angels, and Nightmares are more than scary dreams-- all unbeknownst by her and the rest of humanity, obviously. A sophomore in high school bullied for striving to defy the status quo in every way shape and form, she's become cynical and untrusting over the years from living with a broken family and her own broken self-worth. Everything changes when she's named the Chosen One out of the blue by the mysterious Guardian Council, who plead for her assistance in stopping the Prince of the Nightmares-- she doesn't want to know-- before he succeeds in wiping out Guardian Angel kind and puts all of humanity in danger. A lot to take in, she agrees. Lucky her, everything's a little easier to deal with when you've got the best friend you never knew you had by your side. But what happens when the self-titled Prince is more than a two-dimensional villain? What happens when you start wondering which side you should really be on?