Prentice Alvin (Tales of Alvin Maker, Book 3) - Orson Scott Card

The Tales of Alvin Maker series continues in volume three, Prentice Alvin. Young Alvin returns to the town of his birth, and begins his apprenticeship with Makepeace Smith, committing seven years of his life in exchange for the skills and knowledge of a blacksmith. But Alvin must also learn to control and use his own talent, that of a Maker, else his destiny will be unfulfilled.