Here are some: 'Alone in the dark.' It creates an immediate sense of isolation and the unknown that lurks in the darkness.
Another one could be 'Footsteps on the stairs.' Just the thought of unexplained footsteps approaching you from the stairs is quite terrifying. It makes you wonder who or what is making those steps.
One more is 'Eyes in the mirror.' When you look into a mirror, you expect to see your own reflection. But the idea of seeing other eyes staring back at you instead is extremely creepy. It plays on the fear of the unexpected and the supernatural.
Lights flicker, shadow grins. The sudden flickering of lights often creates an eerie atmosphere. And when you catch a glimpse of a shadow that seems to be grinning, it's truly spine - chilling. It makes you question if there's something malevolent around you that you can't quite see clearly.
The mirror shows nothing. It's as if there's no reflection, just an empty, black void where my face should be. This makes me wonder what is lurking in that emptiness, ready to reach out and grab me.
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.
Footsteps in the attic. Alone in the house, hearing those footsteps in the attic is really terrifying. You don't know what's up there, and every step seems to be getting closer, sending shivers down your spine.
Empty House. There's something spooky about an empty house. It stands there, quiet and desolate, and you can't help but wonder what happened inside or if there are unseen presences.