In the other two books, David Rain was definitely my favourite character, but in this one, I don't know. He's barely in it at all, which I find annoying, since I like him a lot, and the bits he is in, he's a completely changed person. I was disappointed with this because I really liked him the way he was, and not so much now. And I think I really preferred Lucy as a young girl, not as a sixteen-year-old young woman. I also found that a little disappointing.
But other than that, this book is really great. This one and the ones that come after it seem kind of like a whole new series, or part 2 of the series, that gets much, much deeper into the world of dragons, and evil sibyls, and other things like that.