I definitely recommend reading this series in order. There are references to past events and characters that may leave you just at tad lost at first if you don't. However, I have not read the previous books and still really enjoyed this part of the story.
Audray and Jonas are an interesting couple. And their story was a very exciting one. There is also a side couple with a few surprises to throw your way and they play an important part in the final battle of the book. My only complaint about this couple is that they didn't seem to really fit in at first. I didn't understand why they were there until about half way through. I would have liked to understand that just a little sooner.
Jonas and Audrey were great together. They really had a special connection - and that connection helped save them several times. As a new power in the Underworld is fighting for control, Audrey is caught up in the action. I liked that she could take care of herself most of the time - but Jonas still had to come to the rescue once in awhile. Love me a girl that can hold her own.
The last half of the book is when things really get very exciting. I loved the tactics on both sides and their fight was definitely a major turning point that pushed Audrey and Jonas into the right direction to have such an amazing ending.
*This book was received in exchange for an honest review*