This story is great indeed. Very creepy in parts.
If I were the CEO of AMC Networks (or HBO), I would buy the rights to this and produce an episodic adaptation that was shot with the same tone/cinematography and other visual storytelling elements of Breaking Bad and/or True Detective. I would imagine it would be a good programming partner for something like The Walking Dead, although I can't necessarily see it as being a multi-season thing (maybe two seasons at most, although I suppose there could be other cornfields; hey, unless this line was already in the story and I am bringing it to the forefront of my mind as I write this without realizing it, I wonder if that would sound good as a line to the last episode of a hypothetical first season, uttered by a character after the events of the story come to their conclusion, maybe with the temporary defeat of the supernatural menace of He Who Walks Behind the Rows -- "There could be other cornfields," or "There are other cornfields"; could almost be like an X Files thing). Only problem with this idea is that I think the story's adaptation rights might not be in King's possession, but I'm not sure about that. If that is the case, then it would be too bad if King couldn't participate in its value generation.