I loved the first three books in this series and tore right through them. I felt the story could probably have ended with the third book. It seemed like I almost had to push myself to read City of Fallen Angels at times. It wasn't until I was about 2/3 of the way through that I got hooked. I wish the story line would have moved a little quicker. It was still a good read and teens would probably have quite a bit to discuss but I am not sure adults would.