Angel Fire is about Willow finding another half angel. She once thought that she was the only one, but when she met Seb, it all changed. The newly formed Angel Killers decide to kill the head angels. Their plan goes terribly wrong, and friendships are broken, trusts betrayed, and the world as they knew it destroyed.
I love how the idea of a new half angle is implemented. It happens to Willow in a dream, but Seb had been looking for her almost his whole life. I think that if the author had maybe not drawn out the book (over 600 pages) so much, I would have liked it better, but it is good. I think people who like more religious-fantasy-type books would enjoy this book.