The mirror held a face.
Footsteps with no source.
How about 'Knock, no one there.' You hear a knock at the door, but when you open it, there's nobody. It leaves you with a sense of unease and the feeling that something is playing tricks on you.
In a small town, there was an abandoned asylum. A group of teens decided to explore it. As they walked through the dim corridors, they heard whispers. One of them saw a figure in a white gown. They all froze. The figure started moving towards them. Panicking, they ran in different directions. Later, they found out that many people had died in that asylum under mysterious circumstances.
I woke up. Everyone had no faces. Scary.
Dark Room. Just two words but it can be really scary. Imagine being in a pitch - black room, not knowing what lurks in the darkness.
The door creaked open. Darkness seeped in.
Walking alone at night, a cold hand grabbed my arm. It was terrifying as I couldn't see who it was, and the grip was so tight that I couldn't break free immediately. All I could think about was getting away from whatever it was in the pitch - black darkness.