Rating: 4/5 
 ***Spoilers-free*** 
 Another end to another series. I've had this series unfinished for around two years now and I've been meaning to read this book for a long time. Unfortunately, that means I've forgotten most of the stuff about this series since the time I read the second book. I feel like my inability to remember a ton of the characters and what a lot of the terms meant hindered how much I was able to enjoy this book. Thankfully, I still thought it was a good book, but I might reread after rereading the first two books. 
 I always found the characters in this series really interesting. They had cool backstories and had reasons for why they did everything. I also found the society interesting as well, at least from what I recall. Aria and Perry were a cute couple, and their little romantic scenes gave a well needed break from the rest of the stressful situations in this book. I'd have to say Roar is my favourite character in the series because I love his interactions with everyone, especially Aria, and he's pretty awesome overall. 
 In this book we got thrown right into action, but it didn't really feel that way, to be honest. It took a while for me to get into this book, but I still found it interesting throughout. While some things in this book were a bit predictable, there were also a few surprises that I didn't expect. 
 Overall, this book is an enjoyable and interesting read. I'd definitely recommend this series for anyone who enjoys a good sci-fi book. Hopefully a reread will let me enjoy this one more, but it was still pretty good.