Conn should have dropped dead the day he picked Nevery's pocket and touched the wizard's locus magicalicus, a stone used to focus magic and work spells. But for some reason he did not. Nevery finds that interesting, and he takes Conn as his apprentice on the provision that the boy find a locus stone of his own. But Conn has little time to search for his stone between wizard lessons and helping Nevery discover who or what is stealing the city of Wellmet's magic.

    That is the way of the people of Quill. Each year, all the thirteen-year-olds are labeled as Wanted, Necessary, or Unwanted. Wanteds get more schooling and train to join the Quillitary. Necessaries keep the farms running. Unwanteds are set for elimination. It’s hard for Alex to leave behind his twin, Aaron, a Wanted, but he makes peace with his fate—until he discovers that instead of a “death farm,” what awaits him is a magical place called Artimé. There, Alex and his fellow Unwanteds are encouraged to cultivate their creative abilities and use them magically. Everything Alex has ever known changes before his eyes, and it’s a wondrous transformation. But it’s a rare, unique occurrence for twins to be divided between Wanted and Unwanted, and as Alex and Aaron's bond stretches across their separation, a threat arises for the survival of Artim that will pit brother against brother in an ultimate magical battle.