The third book is better than the second. The bottom line is that if you started the series with Dies the Fire, you might be interested enough to keep reading. If not, this book isn't going to get you started. It's barely acceptable as a sequel but would be nothing as a stand-alone novel.
In this book, the conflict between the two main groups of heroes and the tyrant who has taken over what used to Oregon come to a head. Some of the characters are well drawn but most are fairly wooden.
Amazon Link: A Meeting at Corvallis