Christopher Paolini's publishing company, Knopf Children's announced today that the third book in his Inheritance series will be released on September 23, 2008. So that gives you a little under 11 months to read Eragon and Eldest if you haven't already done so.

"I plotted out the Inheritance series as a trilogy nine years ago, when I was fifteen." Paolini told the press. "At that time, I never imagined I'd write all three books, much less that they would be published. When I finally delved into Book Three, it soon became obvious that the remainder of the story was far too big to fit in one volume. Having spent so long thinking about the series as a trilogy, it was difficult for me to realize that, in order to be true to my characters and to address all of the plot points and unanswered questions Eragon and Eldest raised, I needed to split the end of the series into two books."

I guess that means we can look forward to four complete novels in this famous Dragon series. What's that called? A quadology?