I wrestled between a 2 and a 3 here, and opted for the 2. This could just be a matter of me wanting more from a book than it was giving me. It's fantasy with a touch of power armor. Warhammer fans will feel right at home here, with an Emperor on a Golden Throne who keeps devils from crossing the veil. If there's a bright point in the story, it's the protagonist, though this is tempered by the fact that she's hailed as a hero merely by cleaning up the mess she made. She's driven by her passions, not her brains, which might not be surprising considering she's a teenager.

Ultimately, I think this is a YA novel that's not billed as one. There are some good ideas here, but Cole's breezy narrative and action movie plotting generally turned me off. Again, maybe I just want more than this book is giving.