Instruct: Classify Amazon reviews into positive or negative sentiment
Query: great post-apocalyptic vampire fiction

Just reading the description of this book had me hooked. Like I am Legend, which the author acknowledges, Midnight Mass is a post-apocalyptic vampire masterpiece. There are a lot of short descriptions of events in Midnight Mass that leaves the reader wanting more. In fact, Midnight Mass is but one story in what is best described as a vampire world war. Wilson could have easily made this the second volume in a series as it lends itself to a prequel. And with the open ending there's definitely room for a follow-up. It's a fast, fun, book that's full of action and gore.