The plot started off really well and at a fast pace. I really enjoyed the first half of the book, as it had a lot of action and there were enough interesting scenes to keep me interested. Shay had to find the rest of the pieces of the Elemental Cross, and a small team went with him each time. During the second half of the book, it started to go downhill. The ending was absolutely appalling and I despised it. The way Andrea Cremer dealt with the love triangle felt like a cop out and I wasn't pleased with it.
Calla, our protagonist, was a complete idiot in this book. She has Ren and Shay fighting over her, and at one point she tells them that she's not making a decision until after the war is over. Fair enough. But then she complains CONSTANTLY about the two of them as they argue and get defensive over her. They're two alpha males who are after her attention, so I'm not sure what she was expecting. Calla is also a giant hypocrite. She thought about her 'difficult' decision at the worst times, and I was almost shouting at my Kindle to tell her to worry about stopping herself from falling down a deep crevice rather than which guy she would prefer.
Shay was also a moron. Like in Wolfsbane, he was immature, bratty and he tried to control Calla. I didn't like him in Wolfsbane and I despised him in this book. He was one of the reasons behind the undermining of Calla's character. She is supposed to be a strong alpha female, and yet this guy is trying to control her life and tell her what she should be thinking. To be honest, their reltationship comes across as fairly abusive.
I love Ren, though. He has gone through so much character development in this series - more than Calla, in my opinion. He's protective of Calla, yet he doesn't try to dominate her in the way Shay does. Ren takes her feelings into account.
I think this was a terrible end to the series, which is a shame because it started out so well with Nightshade. After reading the entire series, I definitely won't be recommending it to other readers.