| Woah, woah, woah it's not a trilogy o.0 I intend to read this at some point but I was under the impression this was a trilogy as well. I've read the first two and they were decent books.
Edit:
The first book in the series, Eragon, was self-published by Paolini's family in 2002 and re-published in 2003 by Knopf; it was followed by Eldest in 2005. Both were New York Times bestsellers[1][2] and together have sold more than 12.5 million copies worldwide.[3] The third book in the series, Brisingr, was published on September 20, 2008,[4] and publication details for the as-yet un-named fourth book have not been set.[3] The series was intended to be a trilogy, but this changed as Paolini wanted to add more to the story.
From Wikipedia. | 
