For a thousand years, the people of Alera have united against the aggressive races that inhabit the world, using their unique bond with the furies - elementals of earth, air, fire, water and metal. But now, Gaius Sextus, First Lord of Alera, grows old and lacks an heir. Ambitious Lords manoeuvre to place their Houses in positions of power. Far in the Calderon Valley, young Tavi struggles with his lack of furycrafting. At fifteen, he has no wind fury to help him fly, no fire fury to light his lamps. Yet as the Alerans' most savage enemy - the Marat - return to the Valley, his world will change.