Brisingr, the final book in Inheritance series was released in September 2008, but it immediately dominated bestsellers lists as fans of Eragon and Eldest rushed to find out how the trilogy would end. Name the author.

Christopher Paolini is the author of the Inheritance Cycle, which began with "Eragon" (2002) when he was just 19 years old. The series includes "Eragon," "Eldest," "Brisingr," and "Inheritance" (2011). The question incorrectly states Brisingr was "the final book" - there are actually four books in the series. Brisingr (2008) was the third book and was indeed a major bestseller.