In a land ruled by an evil king, brute power is what makes the world go 'round. Eragon's Alagaësia is no exception. The strong prey on the weak, and the weak have very little to say about it. But that's where our hero comes in. Does he defend the weak with a sophisticated P.R. campaign? Not a chance. He learns how to swing a sword, cast a spell, and ride a dragon. Power—both natural and supernatural—is the currency of influence in this world. The stronger Eragon gets, the more good he can spread in the world, and the more baddies he can beat (literally).