Eragon, a young adult fantasy novel, is the first book in the Inheritance Cycle. It tells the story of a young boy named Eragon who hatches a dragon, Saphira, out of a mysterious stone he finds in the woods. Eragon bonds closely with Saphira and becomes a dragon rider, drawing the attention of the evil king Galbatorix, who sends his servants, the Ra'zac, to kill him. While escaping from the Ra'zac, Eragon and his mentor Brom become embroiled in plots against the evil king.
When they finally arrive at the Hadarac Desert, they notice that there is enough brush to feed the horses along the way. While the humans are exhausted by the heat, Saphira immediately enjoys it. They continue to cross the desert, Eragon drawing water from the sand, the elf sleeping, and Murtagh pondering where the soldiers might be. They finally finish crossing the desert and arrive at the Beor Mountains, a monstrous range beyond all possible belief. In awe over the size of the mountains they push forward through their exhaustion until they reach the end of the desert and find cooler weather and animals once again.