This is a quick little story set in Castle Rock Maine. King fans should recognize the town. I've read most of the Castle Rock saga. I think there are a couple short stories I might have missed, but they have been some of my favorites from King's work. 
 This one didn't disappoint. There is perhaps not as much horror in it as I would liked to have seen. A lot of it is simply watching Gwendy grow up, of course, always in the shadow of her button box. I'm surprised two men wrote a teenage girl as well as they did, but I really enjoyed her character. 
 The writing felt very classic King. All the details were there, a poster of the Eagles in front Hotel California. Olive has ISSUES. I was actually surprised to learn there was a second author when I reached the end. 
 I don't think this works well as a stand alone, as it's incredibly short. I think it would be better off published in a collection with other Castle Rock stories, but this is a minor complaint. 
 Would recommend to fans of King or anyone who enjoyed his Castle Rock books. There's even a mention of Sheriff Bannerman (though it's Walt, not George?) which I loved.