To be completely honest, I remember the basics of this book but not enough to write a full-fledged review of it. The fact of the matter is that even though I thought it was a decent book initially, the one time I that I set it down I forgot that I was reading it. For weeks. I didn't remember that I was reading it until I marked the other books I was reading for a class as finished. And even then, it still took me a couple of weeks to pick it back up and finish the last few chapters. There was also a huge loss for the readers through the author not using the Russian background more to her advantage. Even if she only wanted to use the history in a limited capacity, there still could have been a great deal more used.
I doubt that I'll continue on with this series anytime soon, if ever. It was an interesting idea in theory, but there wasn't enough to the book to hold my interest.