Eldest

Eldest is the second book in the Eragon series. It continues the story from where Eragon finally met with his cousin, whom he was forced to leave behind after his uncles untimely death spurred his dragon and him on to hunt down the murderers. Roran, his cousin, and the rest of the village have dealt with constants attacks by the Ra'zac, nightmarish creatures that serve the evil King Galbatorix. Finally, after Roran's love, Katrina, is kidnapped by the Ra'zac, Roran leads the village to a city nearby, fighting and sneaking stealthily through the mountains, trying to find the boy who abandoned them (or so they think) to such terrible attacks. The Ra'zac are hunting Roran and Eragon. When they finally reach Eragon, they discover he's a Dragon Rider, the only one in hundreds of years, since Galbatorix destroyed the Riders and wiped out the dragons. Roran and Eragon reunite and Eragon swears an oath to Roran to help him find Katrina. While Roran has been fighting off the Ra'zac, Eragon has been honing his skills as a Rider among the elves, deep in their hidden forest. His mentor is a crippled elf Rider and his three legged dragon. It's very good, I highly recommend it. Read the first book first though, because it won't make sense if you don't.