Six eerie moons float in the sky above the earth, each radiating a force that those on the planet below can call upon to perform incredible acts of magic. But when Brinn is discovered to have no magic of his own, the boy is condemned to die and flees. Pursued at turns by puritanical humans and twisted monsters bred on the moons themselves, Brinn must discover his own talent before he can at last confront his enemies and overcome their tremendous powers.