So... it's been a while since I read this book, so I'm probably forgetting a lot of what I wanted to write, but I'll see what I can remember. There were times when I was enjoying the story; felt like a good, solid "liked it" 3 stars. But taking it as a whole work, I had to go with an "it was ok" 2 stars.
I think the biggest problem with this book is the one writers harp on all the time: "show, don't tell." This book loves to tell you what's going on, and makes little effort to show it to you. In the very first chapter, Jade, the my-name-doesn't-follow-naming-conventions-for-my-culture main character, is chewing on her hair, thinking about nothing, when the book all of a sudden goes off on a history lesson, spilling the beans on the entire religious background of the culture, then goes off on tangents about who Jade's parents are and why they're dead, etc. This isn't Jade thinking. She's bored, half-asleep, totally zoned out. This is the author, putting the brakes on his story (a few pages after it started), and directly speaking to you, the reader. This highlights another problem with the book--the author picks viewpoint characters for each chapter, and then completely forgets whose point of view the story is being told from. You can have a chapter completely from Jade's point of view, and all of a sudden, you'll get a sentence like "Little did Jade know, there was totally some dude hiding in the bushes behind her!" You know what? That's correct, she didn't know. Neither did we, since we were seeing the scene from her point of view. Why was that sentence there? Why not have a scene change and view things from the point of view of the dude hiding in the bushes? Because this book loves to tell you what's going on.
Descriptions in this book are really weird. You'll get an idea about what the world is like, and then one sentence will force you to reimagine the world all over again. I initially imagined the world to be fairly low-tech, since this culture lived on the edge of a jungle and jungle civilizations tend to stay pretty low-tech because they have easy access to food and aren't forced to innovate agriculturally to grow food in difficult situations. But no, you then find out that they have indoor plumbing. I still have no idea what their civilization is supposed to be like.
The good guys are Good. Too good. They are brave and righteous and always do the right thing, except for Jade, who cries (a lot), therefore she is considered weak and not good enough (okay, I'm paraphrasing a bit). The bad guys are Bad. They are 100% devil-worshippers. There are no deviations from that. They fail at everything they have ever done, they have never beaten the good guys, and they get treated like crap by their devilish deities. And... everything stinks and is covered in garbage where they live. Somehow, none of them get fed up enough with being tortured by devils, living in filth, constantly failing at life, to look over at the good guys and say, "Hey, you know what? I would get treated better if I joined their side. Even if I got thrown in their prison, life would be great!" But nah. They don't. They're just bad guys. They want power! The power to... get beaten by the good guys again. But maybe one day they'll beat the good guys! And then they can throw garbage around their city while devils torture them some more? I don't know... There is no motivation for this other country to keep on doing what they do. The good guys really don't have any motivations either. They have some sort of fortune-telling and prophecy-like powers, so they literally just tell the cast of characters what to do, and then the plucky band of adventurers go and do what they were told to do. They don't really ever have to figure anything out for themselves, because they've already been told the important points. Really kills any sort of mystery about what's going to happen in the book.
The ending of this book is frustrating. Something just happens. The book, of course, tells you what happens by giving it an in-world name, but it never describes what that means. It just tells you that "it's" happening, and after "it" happens, the book is over. In fact, if you read the... inside cover description or the back of the book description or whatever it's called, you've now spoiled the ending for yourself and you know just as much what happens as I do.
Anyway. I don't mean to be overly negative--I understand that this is this author's first real novel, and while it shows a lot of signs of being a first novel, the author still has the talent to get their story on the page, and that's a major accomplishment that most people are never able to do. And like I said, I did enjoy the story--it just had some rough technical issues that I think a good editor would be able to smooth out.