I really enjoyed this book! The whole series is great. I like that there was always something going on, from the very first chapter. As always, the characters were fantastic! Kiki will always be one of my favorites. Along with Moon Man. 
 I feel like Yelena really discovered a lot about herself in this book. With her powers, her purpose, and what she needs to do. In some of the book she was very childish, thinking she needed to do everything on her own, and pushing everyone away, not wanting them to be harmed. I'm glad she realized that was stupid in this book. 
 The magic in this book was fantastic! There was a lot of new magic added, and it really made the story complete. I love the way Snyder comes up with the world building, and cool kinds of magic. She definitely has some of the coolest magic out of other books I've read! 
 I'm glad Valek, Ari, and Janco played a big part in this also. And Leif! Even though Leif was kind of stupid in parts of this book, I really enjoyed seeing him and Yelena finally bond. I hope she has more family time! 
 Finding out everything about Ambrose was very interesting also. I never would have expected that to happen! I hope in the later books we find out more about it. And the whole thing with Valeks shield. 
 There were so many twists and turns in this books, and I never saw any of it coming! This book had me on my toes throughout the whole thing. So many plot twists and interesting things happening! Overall, 5/5 star rating, I absolutely love this book and series. (: