I don't know what happened... I loved the first two books in this series but this last one did not work for me at all. I'm not sure if it's just because there was quite a bit of time between the 2nd and 3rd, so in my mind the story lost momentum, or if the plotting was off, but it didn't grab me like the first books. 
 (Also, I read spoilers for the ending once I decided I wouldn't finish and feel like I made the right decision.)