I finally got this book, and now I officially have all of Stephen King's books (not counting the limited editions and kindle books). It was pretty hard to find, and I didn't find it in a store, but ended up ordering it online. I can understand why it's not in widespread circulation; it's not his greatest work. However, it also wasn't a time-waster either since so little time is needed to read it. I did it in an hour and a half or so, myself, and consider it time well spent. 
 The story is broken into twelve segments, one for each month when the moon is full. The moon in Maine (yes, believe it or not, this particular Stephen King story is set in Maine) follows its own lunar cycle, but King explains that in the afterword. He was aware of his error, but did it intentionally for creative license so he could make the full moon fall in line with a couple of holidays, so we can just stick that in our collective pipe and smoke it. 
 Each segment is a short story in and of itself. Some are 2 pages long; some may be as long as ten, at most. I figured out who the werewolf was rather early on, but that didn't detract from the enjoyment of the overall story. 
 One thing I enjoyed in this book was the pictures, even though some of them were placed in the story before the scene depicted, and thus gave away what was going to happen on the next page, usually a crucial plot element, so that was kind of sucky. However, the pictures were good, and definitely added to the enjoyment of the book. I don't think it would've been as cool with out them. There were also 12 woodcut pictures for each month that depicted a scene in the town: houses, trees, snow. Stuff like that. I was indifferent to those. 
 One thing I noticed in this story were some minor elements that were similar to some scenes or themes in It. Comparing those kinds of things in works by the same writer is a minor interest of mine. It's kind of like picking out continuity errors. It's just something I dig, and I was pleased to find a few. 
 Final thought: get this one from your library unless you're trying to get a complete Stephen King collection like myself. I also think anyone would be fine not having read it unless they, also like me, have a yen to strive for completeness in all things, such as reading everything King has written. I admit that's not a fantastic goal, but everyone needs goals, nonetheless, and that is one of mine, WHO ARE YOU TO JUDGE ME???!!!