Bobbie Anderson finds an object buried in the woods that happens to be the tip of an alien craft. After she tampers with it sufficiently, the whole town gradually begins changing into aliens.

A guy I used to work with kept urging me to read this one. He read half of it during a week long stint in the brig while in the navy, then rescued the book from destruction while he was throwing the ship's trash in the ocean a week later. Was it worth it? Hell yes. King novels don't usually affect me but I dreamed about this one twice while I was reading it. There's an underlying creepiness to this book, similar to Invasion of the Body Snatchers.

It's also my second favorite book with the word 'knockers' in the title...