I read this series a couple of years ago, really liked it, and promptly forgot about it until today when I was randomly reminded. Memories flooding back from this amazing series. This book, which serves somewhat as a prequel to the rest of the series, is my favorite. It provides new perspective and insight as to what actually happened in their world without just directly telling you. I also love the small connections the characters in this book had with the post-apocalyptic ones. Overall great read, I recommend!