Eragon is hunting, tracking a deer. He's so good at it that he can tell the deer he's after has a slight limp.
We learn that he's fifteen, has dark eyes, and is dressed like… a hunter (buckskin, knife, and worn clothes, to boot).
Eragon is in the Spine. What's that? Why, it's a mountain range in the land of Alagaësia—obviously. People are afraid to go too far into these mountains; they think that bad things go down there. Not Eragon, though. He's the only one brave enough to hunt there.
Still, his luck has not been great. After three days, he has nothing to show for his efforts. That's a bummer, because winter is coming and Eragon's family could sure use the meat.
But luckily, Eragon comes across the herd. He finds the deer that he's been tracking, takes aim with his bow and arrow, and… BOOM!
Not killing boom. Explosion boom.
The explosion from behind him spooks the deer. Eragon manages to get a shot off, but he misses.
Eragon turns around to find a blue stone, lying in a crater in the middle of a scorched radius of grass and trees.
(Don't you love it when you know more—even just a tiny bit more—than the character?)
He watches it for a while, but nothing happens. So he goes over to the stone and picks it up. It's polished smooth and oval-shaped.
Eragon is worried that the stone might contain some kind of magic. But he figures he can sell the stone to pay for much-needed food. Why not? Into his sack it goes.