Back in August of 2018, I compiled a list of elements I felt made for a good horror story. Since then, it has become the most-read blog post on my website, a featured answer on query websites, and it has been linked in numerous discussions about horror around the web.
Without further ado, I believe a good horror story is broken down into fear, surprise, suspense, mystery, and spoiler.
This is how:
Fear, focus, and the future. C.M. Humphries talks about writing, horror, and whatever.