Autumn's brother was an Outlier. A true Outlier. He burnt their village to the ground.

Five years after her brother's death, seventeen-year-old Autumn now finds herself running from the king after being identified as an Outlier, too. The problem: she has no elemental abilities and most certainly does not plan to harm anybody. Before getting captured and put to death, she is rescued by Sage, a handsome double agent from the king's guard. Autumn enters the world of the Outliers. She bands together with a group of rebels who show her that not all Outliers are bad.

When her new friends are captured by the king, Autumn's last hope is to find the Last Celestial in order to save them. Secrets of the past emerge. Not only is Autumn a reincarnation of one of the Celestials, she discovers the dark history of her past life. Feeling caught between two worlds, Autumn must put a stop to the cycle of death and revenge.

Will she be able to reconcile the mistakes of her past life and save her friends, family, and the Last Celestial from the king's bloody reign?