I woke up to the sound of scratching at my window. When I opened my eyes, a shadowy figure was peering in.
Well, there's 'My daughter won't stop crying and screaming in the middle of the night. I visited her grave yesterday.' Also, 'I heard a noise from the basement. The power has been out for days so it couldn't be the furnace.'
I saw a figure at the end of the hall. As I blinked, it vanished, leaving only a chill.
She checked under her bed. A pair of eyes stared back.
Well, the one where 'I woke up in a coffin. As I screamed, I realized I was buried six feet under.' is quite terrifying. Just the thought of being trapped alive underground is a nightmare.
Another really scary one could be 'My phone rang at 3 am. The caller ID said it was me.' It plays on the idea of the self being something other or unknown, and calls at that time are always spooky.
I woke up in the middle of the night to a strange noise. When I turned on the light, there was a shadowy figure at the foot of my bed.
The sudden appearance of unknown entities. For example, a figure suddenly showing up in a supposedly empty room.
The sudden and unexpected events. For example, a character thinking they are alone and then suddenly seeing a shadowy figure right behind them.
Story 1: The old house stood alone in the dark woods. Every night, a cold hand would reach out from under the floorboards. Story 2: She walked into the empty classroom. A shadow on the wall began to take the shape of a menacing figure.
One story could be: I woke up in a dark room. The walls were damp. There was a strange smell. I heard a low growl. I tried to find a door but there were only walls. My phone was missing. The growl got louder. I saw a pair of red eyes in the corner. I started to scream but no one could hear me. I realized I might never get out.