When Ava Locke was five years old, she began a journey to join the Benefactors--the leaders of the magical continent of Magus. Twelve years later, she unwittingly started down the road to betray them.

On Magus where colors fuel magical abilities, yellow is banned in an effort to protect people from its mind-controlling capabilities. When a rogue Yellow magic-user named Elm escapes imprisonment Ava becomes innocently fascinated with his story. Once this mysterious Elm shows up at her school, Ava pushes her interest to the next level by helping him evade the Benefactors. Ava grows increasingly conflicted as her intrigue leads her down a dark road of secrets about her world. As she learns more about Yellow magic's potential to control its victims, Ava now must question whether her rash decisions are all her own or if someone else is pulling the strings.