My daughter took this out of the library and I stole it from her and read it in about 24 hours. Really liked it. It is a page-turner with some very satisfying sci-fi/horror action sequences and plot twists. During one, the group of good guys who all know each other from AA meetings collect every gun they can find and shoot a bunch of bad guys to death in a roadside park in the middle of the day. An American solution that we don't see often enough in the horror genre. 
 Stephen King's good guys and bad guys all seem alike to me. The over-confident ego-maniacal villain vs. the jaded recovering alcoholic. It worked really well here, though. Anyone who enjoys science fiction / fantasy / horror will devour this book.