There was a scratching on my door last night.
The hall light was on outside on the landing, but I saw no shadows slipping into my apartment from under the door.
It was a rhythmic scratching, nails on wood, for about 5 minutes and then it stopped. No footsteps away from the door, no voices, only a silence that filled the apartment.
A silence more terrifying than the scratching itself.
I slept with the light on.