"Eragon" is a fantasy novel written by Christopher Paolini. It follows the journey of a young farm boy named Eragon who discovers a mysterious blue stone that hatches into a dragon named Saphira. Together, they embark on an adventure to defeat the evil king, Galbatorix, and restore peace to the land of Alagaësia. As Eragon learns to harness his newfound powers as a Dragon Rider, he encounters various allies and enemies, including the wise storyteller Brom and the fierce warrior Murtagh. The story explores themes of friendship, bravery, and the struggle between good and evil.