One that stands out is 'The old doll in the attic blinked.' Dolls are often creepy in horror, and the simple action of blinking, which is so unexpected from an inanimate object, is really frightening. It makes you think about what else the doll might be capable of.
Here's another great one - line horror story from it: 'My phone took a picture of me while I was sleeping and sent it to me with the caption 'Goodnight'. I never set it to do that.' This is scary because it implies that something or someone has control over your personal device in a very intrusive and unexpected way.
A memorable one is 'I can't sleep at night because I keep hearing my name being whispered in my ear, but there's no one there.' It gives that feeling of being haunted and makes you shiver at the thought of an unseen presence that knows your name.
Another one might be 'The old doll in the attic blinked. I'm sure it did.' This simple line creates a sense of unease as dolls are often associated with the uncanny. The idea of an inanimate object like a doll showing signs of life is quite terrifying.
One could be 'The last person on Earth sat alone in a room. There was a knock on the door.' It's terrifying as it makes you wonder what could be knocking when there's supposed to be no one else left.
One that stands out is 'I heard a child laughing in the empty school at night.' Empty schools at night are already spooky places, and the sound of a child's laughter when there should be no children there adds to the horror. It makes you think about the possible reasons for the laughter. Is it a ghost of a child who met an untimely end? Or is it something even more sinister?
I heard a baby crying in the basement. I live alone.
The mirror showed my reflection, but it moved when I didn't.
My phone took a photo by itself. In the picture, there was a figure behind me.
I heard a knock at the door. I opened it, but no one was there, yet the knocking continued.
Here's another: 'The old doll sat on the shelf. Its eyes followed me. I turned off the light. In the dark, it giggled softly.'
I heard a knock at the door. I opened it, no one was there, but I felt a cold hand on my shoulder.
I woke up to find a handprint on the mirror, but I live alone.