This book started out a little slow and confusing, but once you get into it, it's SO Amazing. :) The history, the characters, the prose, everything was absolutely incredible. The only thing I didn't like was that Francesca was so unsure of herself so much of the time, and had such a negative self-impression, when any blind fool could see that she's strong and charming and funny with a vulnerable core that she tries to hide from everyone around her. I really hope there's a sequel that'll deal with the whole "Lux" idea, cause it really feels a little unfinished at this point.