In the case of the Spaghetti Warehouse, it's the sudden appearance and disappearance of the female ghost. You could be going about your normal business in the building, and then suddenly get this cold feeling and see this strange figure that's gone in an instant. It gives you this sense of unease that something is not quite right.
The scariest part of the Jefferson Davis Hospital stories is the idea of the lingering pain of the patients. The thought that their spirits are still there, in a place of suffering, is really spooky.
The way the ghosts interact with the living in Creepypasta True Ghost Stories can be really terrifying. For example, in stories where ghosts manipulate objects around people. They might move things around in a room while someone is sleeping, or turn on appliances unexpectedly. It gives a feeling that the ghosts are toying with the living, and that there's no escape from their influence. Also, the sudden appearances of ghosts, like a face suddenly showing up in a mirror or a figure emerging from a wall, are extremely scary.
The sense of being watched is also terrifying. In many true ghost tales, people report feeling as if eyes are on them. Like in the Bell Witch story, the family members constantly felt they were being observed by the unseen entity. It makes you feel vulnerable and afraid in your own space. And when it starts to interact, like pulling at your clothes or hair, it's truly horrifying.
The sense of the unknown in '25 ghost stories' is also quite terrifying. For instance, when a character starts to experience strange events but has no idea what's causing them. It could be a ghostly presence, but they don't know its motives or how to stop it. This lack of knowledge builds up fear.
The sudden appearance of apparitions is really scary. For example, in some hotel ghost stories, guests see a figure at the end of the hallway when they least expect it. It's terrifying because it's so unexpected.
In 'The Turn of the Screw', the scariest part is the ambiguity. You're never really sure if the ghosts are real or just a product of the governess's imagination. It keeps you on edge throughout. For 'The Woman in Black', it's the sudden appearances of the woman herself. She always shows up when you least expect it, with her black figure looming menacingly.
The scariest part could be the sudden appearance of the ghosts. For example, in the haunted house story, when the figure just pops up in the attic window without warning.
The sense of being watched in ph ghost stories is really frightening. When the characters in the story feel like there are eyes on them but can't see anything, it gives a feeling of helplessness. Also, when the ghost seems to interact with the physical world, like moving objects, it blurs the line between the living and the dead which is very scary.
The scariest part in some of the stories is the sudden appearance of the ghosts. Like when the figure just pops out of nowhere, it gives you a real shock.
The sudden appearance of unexplained entities like Herobrine. Just when you think you're alone in your world, seeing those white eyes out of nowhere is terrifying.
The unknown is the scariest part. In hdb ghost stories, you don't know who or what the ghost is. It could be a former resident who died a tragic death, or something more sinister.