The next morning, Eragon gets up and fashions a makeshift crutch out of a tree branch. His legs are still too painful to walk without help. Resourceful, much?
He goes to get a drink from a stream, then realizes that Saphira has brought them right back to where he first found the egg.
He goes back to Saphira and basically calls her a chicken to get her to take him back to Garrow's farm. Nice move.
His mockery works, and they take off again, racing back home. Eragon's legs are bleeding again. Ouch and yuck.
When they near the farm, smoke and flames are visible from the air.
Saphira lands nearby and Eragon sees that the farm house has been completely destroyed. All the animals are gone and Garrow is nowhere to be found.
Eragon is super-mad at Saphira for taking him away, but she says that he'd be dead if she hadn't done it.
They start looking for Garrow, and Eragon finds him buried under a pile of rubble.
Saphira helps dig him out, but Garrow is in a bad way. He's covered in burns that are "chalky white and [ooze] clear liquid," with "the odor of rotting fruit" (11.24). Once again: ouch and yuck. Eragon also finds a scrap of black cloth clutched in his hand.
He makes a carrying board for Garrow and Saphira carries them both to Carvahall.
It's tough going for her, though, and Saphira has to rest, landing a little ways out of the village. Eragon drags his uncle the rest of the way into Carvahall while Saphira makes herself scarce in the nearby woods.
He pulls Garrow the rest of the way into town, then collapses as he sees Brom come running up to meet him.