The wizard heir / Chima, Cinda Williams

Seph, an orphaned and untrained wizard who is unable to control his growing powers, is sent to a secluded boys' school in Maine where the headmaster promises to train him in magic and initiate him into his mysterious order of wizards.

Sixteen-year-old Seph McCauley is sent to the Havens, a boys' school in Maine, after being kicked out of several private schools for his untrained magical powers; but his headmaster, Gregory Leicester, has his own mysterious agenda when he agrees to help Seth channel his magic.