Brisingr - or, The seven promises of Eragon Shadeslayer and Saphira Bjartskular

Following the colossal battle against the Empire's warriors on the Burning Plains, Eragon and his dragon, Saphira, have narrowly escaped with their lives. Still there is more at hand for the Rider and his dragon, as Eragon finds himself bound by a tangle of promises he may not be able to keep.