Another long short horror story is set in an old asylum. A journalist goes there to do a story. As she explores the dark corridors, she hears the screams of the former patients. She then discovers that some malevolent force still lingers there, driving people to madness.
Sure. One long short horror story could be about a haunted house. A family moves in, and at night they hear strange noises. The lights flicker, and they start seeing shadowy figures. Eventually, they find out the house was the site of a grisly murder in the past.
There's also a long short horror story where a group of hikers gets lost in the woods. They come across an abandoned cabin. Inside, they find a diary that details a cult's rituals. Strange things start to happen, and they realize they are being hunted by the cult's vengeful spirits.