How to tell a horror story in the shortest sentence?

I heard a scratching at my window. I peeked through the curtain. A pale hand reached for my face.

Well, the 'knock shortest horror story' typically involves an element of surprise. Maybe it goes like this: 'Knock, knock. I called out 'who's there?' Silence. I went back to sleep. Then I woke up with a start as I realized the knocking was coming from inside my closet.' It gives that sudden jolt of horror by presenting a creepy situation in just a few words.

A shortest horror story can be effective through its ability to quickly create an atmosphere. For instance, using just a few words to set a spooky scene like 'The cellar door creaked open. Darkness stared back.' The creaking door and the unknown darkness immediately put the reader on edge.

Unyielding and brave.

One sentence: 'The door creaked open and no one was there.'

She walked into the old, abandoned house. The air was cold and stale. She heard a child's laughter. Then she saw a shadowy figure on the stairs.

She entered the old house. Every step on the creaking floorboards echoed. The portraits on the wall seemed to follow her with their eyes. A cold hand touched her shoulder. She turned around but saw nothing.

Well, it might be related to a sense of impending doom. In a really short horror story, it could be something like 'She woke up. Her reflection was missing in the mirror.' This plays on our fear of the unknown and the abnormal, leaving a lot to the imagination.

I'm not sure. Maybe it's some unknown indie author.

Sorry, I have no idea. There are countless horror stories and authors, and without further context or information, it's impossible to determine who wrote the shortest one.