Thunder Roar and Lightning Crackle is the 17th chapter of Eragon. It takes the point of view of Eragon.
Summary[]
Eragon, Brom, and Saphira are traveling across the vast plains that stretch across part of the Empire. The Ra'zac, it seems, have gone to Yazuac, a small village four days away. They encounter a thunderstorm on the way to Yazuac. The wind is too much for Saphira and she is forced to land, but barely makes it to the ground.