In the kingdom of Lineal, seventeen-year-old Cole Wolfe faces the anxiety of the annual Testing Festival, a rite of passage where young adults discover their magical attunement. As the son of a war-scarred veteran, Cole carries the weight of expectation and dreams of helping his father, who is burdened by scars from a Fire-attuned monster. However, when Cole''''s name is called and he touches the iridescent crystal, he experiences excruciating pain but ultimately fails to attune.