One could be 'I entered the abandoned asylum. A cold hand grabbed my ankle.' Another is 'She thought she was alone. But the eyes in the mirror said otherwise.' These short horror stories create a sense of dread quickly with just two sentences.
Here are a couple more. 'The cemetery gate creaked open. A shadowy form drifted towards me.' And 'I looked under my bed. A pair of glowing eyes stared back.'
A man was walking alone in the forest. The moon was full but the trees were too thick to let much light in. He heard rustling behind him. He started to run. But then he realized the rustling was all around him, closing in.
One: 'The mirror showed my reflection, but when I blinked, it didn't.' Another: 'I heard a knock at the door. When I opened it, no one was there, but the doorknob was cold as ice.'
One sentence horror story: The last person on earth sat alone in a room. Then there was a knock on the door.
One 'two sentance horror story' could be 'I always sleep with a nightlight. Last night, I woke up to find it was still on, but I was in complete darkness.' It's terrifying because the contradiction between the nightlight being on yet in complete darkness creates a sense of the unknown and a break in the expected reality.
One '2 sentance horror story' could be 'I woke up in the middle of the night. There was someone standing at the foot of my bed.' It's terrifying because the sudden realization of an unknown presence in your most private and vulnerable space, your bedroom at night, sends shivers down your spine. You don't know who it is or what they might do.
One night, I heard scratching at my window. I peeked out and saw a faceless figure. It vanished when I blinked.
I woke up in the middle of the night and saw a shadowy figure standing at the foot of my bed.
The brevity of '2 sentance horror story' is key. It leaves a lot to the imagination. For instance, 'I opened the attic door. A strange smell and a soft whisper greeted me.' The lack of details makes our minds fill in the blanks with the scariest things we can think of. Also, they can end on a cliffhanger, making the horror linger in our minds.
I woke up in the middle of the night, and there was a figure at the foot of my bed with no face.
Here is one: I woke up in the middle of the night. When I turned on the light, I saw a figure at the foot of my bed. Another one: I heard a baby crying from the attic. I climbed up only to find a doll with a blood - stained dress.