This review will contain spoilers! 
 This was a good end to this series. Not my favorite of the entire series, but I did enjoy this. 
 Opposition starts a couple days after E.T. phoned home. Yep, aliens are on earth and Katy has no idea where Daemon, Dawson, and Dee are. After they lit up like the fourth of July, they disappeared, along with everyone in the area. She's scared and hurting, but she knows Daemon wouldn't leave her. 
 Still, she needs to keep her head on her shoulders and one thing she needs to do is help Beth. Katy, with Archer's help, agrees to venture out in order to find food and medicine for Beth and the baby. Just like with everything else, though, things don't go according to plan. While at the store, aliens invade, including the boys she loves so much. As soon as she spots Dawson, she's so happy!...until he launches light right into her, knocking her out. 
 When she wakes up, she finds herself captured yet again. Only this time it's the aliens instead of humans. Daemon, looking the same as ever, is cold and not like the boy she loved so much. Dee, is mean and vicious, throwing jabs at her every chance she can. Katy thinks all is lost until she realizes that Daemon's love for her can beat even the alien invasion. While all the Luxen now have to listen to the all powerful leader, the boys still have their own minds because of the women they love. 
 And Daemon will do whatever he has to do to get Katy out. 
 I was so nervous at first that she was going to spend the book making Daemon love her again. Instead, it was Dee they had to worry about. Ugh, her scenes were hard to read because her character knew how to cut Katy so hard. 
 The growing relationship between Daemon and Archer was fun to read. They clearly liked each other, but they were too stubborn to admit how alike they actually were. Archer ended up becoming one of my favorite characters. 
 When they finally realize they need to use the Arum to win, the scenes got exceedingly intense. When Lotho says he'll help if he gets to feed on Katy, I was literally bouncing as I read it. I figured it was meant to see how far they were willing to go, but it still was crazy to read. Daemon was ready to filet everyone alive. Plus, I liked getting to know Hunter and Lore, and I want to know more about them in their spinoff. 
 Then we got near the end and finally got our Dee back. I thought the way Katy got through to her would have been the way she would have had to get through to Daemon had he not been able to resist. It was cool to see. 
 However, he real sadness was poor Katy and her mom. Ugh, I was really hoping for a reunion there and I didn't see her dying before then. When she started hitting Daemon? Broke my heart. 
 This was more predictable then the previous book which is why it lost the start for me, but I did enjoy it. There is a reason I'm an Armentrout fangirl.