As we lead up to book club, this has already given me a scared-out-of-my-wits zombie nightmare! 
 *** 
 Unfortunately, as I progressed about half-way through the book, the sense of dread dissipated and was replaced with mild boredom and complacency. The initial build-up was great; the author depicted a creepy new society built around a long-secluded, fence-encircled town surrounded by zombies. The town itself was almost a character, and one that I wanted to get to know. However, the inevitable breach of the fence came--in my opinion--too soon, robbing the book of a great group of characters (The Sisters). 
 Of course, I understand that in zombie lit you should never become too attached to characters and places, as the theme is always that you are "on the run." But because there was not enough fleshing-out of the background, it was hard for me to care about the future.