In the third book of the Inheritance series, Eragon and Roran are on a quest to find Roran's beloved, Katrina, who had been taken hostage by the Ra'zac. At Helgrind, Eragon finds Sloan, the butcher of Carvahall who was also Katrina's father, in a cell with terrible injuries. Meanwhile, Nasuada competes against Fadawar in the Trial of the Long Knives for the leadership of the Varden, and wins. Later on, Eragon and Saphira leave for the Farthen Dur to attend the election of the new dwarf king, where the Az Sweldn rak Anhuin clan attemped to assainate Eragon. Eragon's dwarf friend Orik ends up being elected as king, and at the coronation, Saphira repairs the Isidar Mithrim. After the coronation, they head to Ellesmera to complete their training with Oromis and Glaedr, where Eragon finds out that his father was not Morzan, but Brom, making Murtagh his half-brother. Eragon, after begging the elven blacksmith Rhunon, recieves his special Rider's sword, which he names 'Brisingr', that bursts into flames whenever he says 'fire' in the ancient language. I really enjoyed this book and I reccomend it for anyone who has read Eragon and Eldest!