4.5 stars. 
 For me, this wasn't as good as the first one, but it's still a great read. The first part of the book mostly introduces and follows a new set of characters. I wasn't down for that. Where is everybody else?!? I need to know what happened to them! But it didn't take me long to fall into this new storyline and get over myself. Plus, eventually my questions are answered. 
 Cronin's gift of world and character building are evident here, and the epic battle against the nasty virals continues in a mostly satisfying manner. The ending worked well; I was left wanting more yet not irritated at the stopping point. 
 I'd recommend this to anyone that appreciates strong writing skills that also likes a post-apocalyptic story doused with vampire-like creatures. Many of the best and worst parts of humanity and life is covered here, though it was just wee bit too much of religious stuff for me. I didn't feel the story needed it. 
 Now then. When's the third book coming out?