One story could be 'I always sleep with a nightlight. Last night, I woke up to find it off and a cold hand on my wrist.' Another might be 'The old doll in the attic blinked. Now it sits at the foot of my bed.'
Well, there is a story like 'I heard scratching at my window. When I looked, there were no branches, just long, ragged fingernails.' And also 'My reflection smiled at me. But I wasn't smiling.' These two - sentence horror stories really give a chill. They play on simple yet terrifying ideas that make you imagine the worst. For example, the idea of something that should be inanimate, like a doll, coming to life is a classic horror trope. The fear of the unknown, like what is scratching at the window when there is no logical explanation, is also very effective in creating horror.
Another one could be 'I heard a scratching at the window all night. In the morning, there were deep gouges on the glass and no sign of what made them. The simplicity of two sentences can create a very intense and spooky atmosphere.
One story could be 'I always feel like I'm being watched at night. Then I realized the eyes in my portraits were following me.' It gives that sudden shiver of something abnormal in a familiar setting.
Here's another. 'I woke up to find the world silent. When I looked out the window, all I saw were shoes.' This is scary as the silence implies something is very wrong, and the sight of just shoes is strange and makes you wonder what happened to the people.
She looked into the mirror. A figure behind her grinned, but there was no one there when she turned around.
I walked into the empty room. Suddenly, I felt a cold hand on my shoulder, but no one was there.
There was a knock on the door. Nobody was there when I opened it.
I woke up to find a shadow at the end of my bed. When I turned on the light, it was gone.
One: 'I woke up to find my reflection missing from the mirror. And I heard footsteps coming from the empty room.'
Well, 'My phone took a picture of me while I slept. In the photo, there was a figure standing over me.' This is quite scary as it involves the invasion of our private space, especially when we are at our most vulnerable while sleeping. It also adds the mystery of an unknown figure. This makes us wonder what that figure could be and how it got there while we were unaware.
I found a doll in the attic. Its eyes seemed to follow me as I left the room.