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 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.'
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.
Story 1: I woke up to a cold hand on my face. When I turned on the light, no one was there.
She looked into the mirror. A figure behind her grinned, but there was no one there when she turned around.
Here's another: 'The old doll in the attic blinked. I ran out and never went back.' This creates a sense of unease with the simple and unexpected actions. The blinking of the doll, which is an inanimate object, is very creepy.
One story could be: 'I woke up to a strange noise in the attic. When I went to check, a pair of glowing eyes stared back at me.'
A third one could be 'I heard scratching at my window. As I peeked through the curtain, I saw a shadow with no form.' The scratching sound is a classic horror element that immediately sets an ominous mood. The shadow with no form is mysterious and menacing, leaving the reader to wonder what kind of entity it could be.
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.