Wow, is all I can say. It isn't often that subsequent book/books in a series turn out to be just as good as the first... but in this case that's exactly what happened. Only The Forst of Hands and Teeth series, Newsflesh Trilogy and the Last Survivors series come to mind.
This story didn't miss a beat and picked up right where the previous book ended. I think the reason I love this series so much is the realistic aspect. Just like the Last Survivor series, you feel like this is exactly what trying to survive in a post-apocalyptic world would be like.
I'm eagerly awaiting Sunrise.