Eragon and Eldest Boxset by Christopher Paolini

Eragon: When Eragon finds a polished stone in the forest, he thinks it is the lucky discovery of a poor farm boy; perhaps it will buy his family meat for the winter. But when the stone brings a dragon hatchling, Eragon soon realizes he has stumbled upon a legacy nearly as old as the Empire itself . . .

Eldest: Eragon and his dragon, Saphira, have just saved the rebel state from destruction. Now he must travel to Ellesméra, land of the elves, for further training in magic and swordsmanship, the vital skills of the Dragon Rider. It is the journey of a lifetime, filled with awe-inspiring new places and people, each day a fresh adventure. But chaos and betrayal plague him at every turn, and Eragon isn’t sure whom he can trust.