Jennifer L. Armentrout: Apollyon (Covenant, #4)

Fate isn’t something to mess with… and now, neither is Alex.

Alex has always feared two things: losing herself in the Awakening and being placed on the Elixir. But love has always been stronger than Fate, and Aiden St. Delphi is willing to make war on the gods—and Alex herself—to bring her back.

The gods have killed thousands and could destroy entire cities in their quest to stop Seth from taking Alex’s power and becoming the all-powerful God Killer. But breaking Alex’s connection to Seth isn’t the only problem. There are a few pesky little loopholes in the whole “an Apollyon can’t be killed” theory, and the only person who might know how to stop the destruction has been dead for centuries.

Finding their way past the barriers that guard the Underworld, searching for one soul among countless millions, and then somehow returning will be hard enough. Alex might be able to keep Seth from becoming the God Killer… or she might become the God Killer herself.

Love the cover. Really. It's amazing. ♥

First I must say that the first half of the book was boooriiing... Nothing happened. Story just felt really flat. Few times I even considered skipping few chapters. But hang in there, it really does get better. About half way through there's finally some action and sense. And BANG. Ending was pretty action-packed and even pretty sad and emotional. First I hated the book and then finally I loved it.

Although I loved the book, it still seemed like some "between book" before the last book and the final battle. Ok, we learned a lot and there were some pretty emotional things and we lost someone and stuff, but I think that nothing really major happened. Can't really explain what I mean, but something was missing. Maybe it felt like the book wasn't finished. Like there should have been more. Like this book was only a tease before the finale...