Dang it. Now I've got to go buy the next one!
Everflame is definitely worth the read.
The story itself is your standard "prophecy about someone who has to do A, B, and C in order to save the world from the Big Bad" tale. For all that, though, it's not badly written. The characters weren't boring, the writing ranged from serious and depressing to light and funny without any problems, and the mythology that Peters created for this world is downright impressive.
But then, I love seeing authors dedicate so much time to the scenery their story is staged in. As important as the characters are, it's just as important to put work into the world they inhabit. This world is explained so well that you can understand where every character is coming from, and why they're making the choices they do. No appendixes, no glossaries needed. I applaud a book that can manage that.
I enjoyed this book very much, for being an Amazon freebie. I'm defintely going to be getting the rest of the series.