OK, I must admit it--I found this book frustrating. BUT... The frustrating aspects did serve a point, and I'm trying to decide if that makes it even more frustrating. :-) To clarify: Richelle is amazingly immature at times and I found myself mentally screaming at her for doing and saying some of the stupid things she did. But as I've already said, that made sense, given the kind of person she's supposed to be--obviously Mead did a great job writing her. Actually, Mead does a great job writing all of the characters, and I was glad to see some new ones introduced in Frostbite: namely, Janine Hathaway and Adrian Ivashkov. It is very interesting (and sometimes frustrating) to see Rose's relationship with her mother develop. And Adrian proves to be an interesting addition to the cast, as well, given that he's another person whose specialty is the spirit, and not one of the usual earthly elements...A good portion of the book is devoted to relationships--Rose's in particular (with Mason, her mother, Dmitri), but also the growing relationship between Lissa and Christian. These relationships actually made for an interesting read a lot of the time, but I also found myself thinking, will you get to the point already? What is supposed to be going on in this book? Finally, as I reached the last third of the story, things started falling into place and really picking up speed. As I sit here and type this, I know I enjoyed the book and have gained even more appreciation for the frustration Read caused in me with Frostbite. Obviously, if I can get that invested in a story that has a tendency to drive me crazy, it must be pretty good. And in the end, much of it really was wrapped up and tied up snugly... leaving just enough to leave you dying to know what was going to happen next, but satisfied that at least some things were resolved.