The Mute Mage: One Word to Oblivion

Oswin shoveled horse dung; they called him "the mute." He stayed silent to keep the world alive: at six, "Snow!" froze half his village, killing forty-one. Since then he never spoke holding a wand. Only a magic-immune raven spoke for him. He lived for his gifted sister—until she vanished from the Academy, leaving a letter in her blood: Forget me. To save her he enters the Academy, where the dean locks an archmage collar on him. Forced to kneel before four hundred students, his prize: "Cook it. I don't care." Everyone laughs: beasts roar when he holds a wand; centuries-unseen fireballs fall when he whispers "fire"; the sacred measuring beast plays dead. For eight centuries every Tower Master was noble-born; the last took nine days—Oswin, one hour. Then the mute rides back on the sacred beast, the collar shatters, and the academy kneels before the boy they spat on. Every debt comes due with interest. One word from him is a natural disaster. What happens when he speaks?