The people of Alera are known for their ability to summon and command furies, elemental beings of earth, air, fire, water, wood, and metal—a power that has long protected the empire from the hostile forces outside its borders. All the people except for Tavi, a young man living at the edge of civilization in the remote Valley of Calderon, who is seemingly unable to call upon supernatural aid. Looked on with pity by some and contempt by others, Tavi must depend on his own wits and bravery to combat the threat of invasion by the barbarian Marat horde. Meanwhile, the Empire faces threats from within as well, with southern nobles plotting rebellion against the aging First Lord. After a bitter betrayal, the loyalist windcrafter Amara must flee for her life to Calderon, where further danger awaits... and an alliance with Tavi. But will Tavi’s best efforts be enough against war and rebellion?