
Nasuada moves the Varden into Surda, where their allies are. After a foiled assassination attempt, Nasuada meets Elva, a young child who Eragon 'blessed'. Despite being only a few weeks old, she has the body of a five year old and is constantly growing. She has the ability to sense people's pain and weaknesses, and knows when someone dies. She serves as Nasuada's personal bodyguard afterward.
Meanwhile, in Ellesmera, the elves are preparing for the Agaeti Blodhren, or Blood-Oath Celebration, which celebrates the pact between elves and dragons. At the celebration, Eragon is altered by a spectral dragon, which causes him to look more like an elf than human. Eragon also confesses his feelings to Arya, who brutally rejects them. Before returning to the Varden, Oromis presents him with the belt of Beloth the Wise. Eragon quickly flies off to help the Varden in battle.
We then discover that Roran is being hunted by the Ra'zaac, who hope to use him to capture Eragon. Instead of capturing Roran, they capture Katrina, which causes Roran and the entire village of Carvahall to chase after them. At Teirm, they meet Jeod, who helps them steal a boat and begin sailing to Surda.
At the battle, Eragon meets a hostile dragon rider. He manages to kill Hrothgar, the dwarf king. It is then revealed that the rider is Murtagh, and that he and Eragon are brothers. The story ends with the battle.