Oh boy were to begin, I feel like there was a lot of change in the characters, but that's understandable things become more intense. There is definitely some intense moments between Tris and Four in Insurgent, and although I could see both sides I could understand Tris's actions, even if they got a little out of hand and completely crazy. There were quite a few new characters we get introduced to, but sometimes even some of the old characters felt new as there true nature was coming out. One person I was really excited to read about was Marcus who is Fours Dad, he was around a lot more and the reason it was so interesting was because you got to see each characters reaction.I really don't know how she does it but Veronica has definitely done it again, there was action, romance and a lot of emotion all contained within this 525 page book. The feel of Insurgent was a little different which was what I was expecting, but it made it all a new and exciting experience, instead of same old same old like you get with some books. I don't really know how to explain this but throughout this book I felt really heavy and I mean emotionally, but I have a feeling it was because I felt so connected to Tris. Of course there were also a lot of twists and turns, and I was constantly awaiting my questions to be answered. It's so hard to do this review without repeating anything I've said but I believe everyone should make time for this series if they haven't already. I can't believe I'm going to say this but at times I got really frustrated at Four, it's just at times he did seem to be a little bit of a hypocrite when it came to Tris.I just love Veronica and her writing it's just so compelling and very hard to put down, so hard that you'll find yourself losing sleep. She keeps you holding on till the very end and I mean it, you will be staring at the book for an hour asking yourself, if what you just read really happened. Also if like me you are impatient when it comes to amazingly good books like this, it will be a VERY long wait.* Quietly walks off, and sobs*