I remember when I fell in love with this series about 3 years ago and even though I still dislike the way Alex talks sometimes, I was really happy with the way this book ended and the overall character development throughout the series. It was a bitter-sweet way to end the series, walking the line between "too good to be true" and "completely unfair for all characters involved". I will say I was disappointed by a few things though, including (view spoiler)[ Seth's fate and that he has no chance at a happy life with someone who will genuinely care about him, deep down he's a good guy who made some disastrous mistakes but regretted them and tried to make up for them in the best way he could. I was disappointed that the only relationship the book focused on was Alex and Aiden. Yes, they are a great couple. Yes, Aiden seems to be the perfect guy. Yes, I wanted them to end up together and I'm happy that they did. But I would have loved to see someone else develop a relationship or two unlikely people coming together despite the circumstances. The book was definitely short enough that there was room to expand on personal relationships (of ANY kind), but they were neglected in a lot of ways. For the last book in a series, I would have liked to see it from more peoples perspectives. (hide spoiler)] 
 Overall, there were a lot of parts of this book that I loved and I give it 3 1/2 stars. The mythology was great, Seth's character always adds some hilarious lines, and there were definitely twists in the plot that were unpredictable. Alex is still the strong female protagonist/heroine who had always kicked ass; I wouldn't have wanted it to end with her any different than the stubborn, determined girl we met in book one.