Well, in a best horror story, the characters need to be relatable. If we can see a bit of ourselves in them, it makes their fear more palpable. The pacing is important as well. A slow build - up of tension, like the feeling of being watched gradually intensifying, and then sudden scares, like a face popping out of nowhere, are hallmarks of a great horror story.
Well, a hot horror story often has an atmosphere that is both oppressive and claustrophobic. The heat can create this thick, heavy air that makes it hard to breathe, much like the feeling of being in the presence of something truly terrifying. The use of vivid descriptions of the heat, such as the sun beating down mercilessly or the air feeling like it's on fire, can set the mood. Also, a hot horror story might involve elements related to the body's reaction to heat, like dehydration leading to hallucinations. These hallucinations can then be used to introduce the horror elements. And characters who are vulnerable because of the heat, like being too weak to fight back against a threat, can add to the overall horror.
One key element is suspense. For example, in 'Psycho' by Robert Bloch, the suspense builds as we wonder what will happen to Marion Crane when she stops at the Bates Motel. Another element is the unknown. In Lovecraftian horror, the idea of unknowable cosmic entities creates a deep sense of horror because our minds can't fully comprehend them.
One element is the unknown. When there are things that are not clearly explained, like a strange noise in an old house with no obvious source. Another is a sense of helplessness. For example, a character being trapped in a haunted place with no way to escape. Also, the use of psychological horror, such as a character slowly losing their sanity and not knowing what's real or not.
A good horror story usually has elements like creepy settings, mysterious characters, and unexpected plot twists.
The element of surprise is key. For example, a sudden appearance of a terrifying face in a snap can be really effective. Also, the unknown origin of the snap adds to the horror. If you don't know who sent it and why, it creates a sense of mystery and fear.
Unusual pets or collections can also be part of a horror story. For instance, if a neighbor has a collection of dead insects pinned to the wall or keeps a large number of snakes in his house. And if these snakes sometimes escape and end up in your yard or even inside your house, it would be a truly terrifying situation. Also, if a neighbor has a very large and aggressive dog that seems to be always growling and trying to break free, it can create a sense of danger and horror.
Surprise is a key element. For example, when a werewolf is chasing someone and then suddenly trips over its own big paws. It's unexpected and makes you laugh. Another is the contrast between the scary and the normal. Like a ghost who is more interested in eating ice cream than scaring people. This creates a humorous situation within the horror context.
Voter fraud can turn an election into a horror story. If people are able to vote illegally or if legitimate votes are not counted correctly, it undermines the whole democratic process. For example, if someone is caught stuffing ballot boxes, it can create chaos and mistrust.
One element is the corruption of his powers. For example, if his super strength suddenly becomes uncontrollable and he accidentally crushes people he loves while trying to hug them. Another is the distortion of his perception. If he starts seeing his friends as foes due to some mind - control or a strange phenomenon in his brain, it can lead to a horror situation. Also, his invulnerability being turned against him. Say some alien technology starts using his own invulnerability to generate a powerful shockwave every time he is hit, causing massive destruction around him.
One element is the misuse of quirks. For example, if a quirk that can control minds is used to make heroes turn on each other, it can be very horrifying. Another is the isolation of characters. If a hero gets trapped alone in a place filled with unknown threats, like in an abandoned villain lair where there are strange noises and lurking shadows. Also, the corruption of ideals. If the values that the heroes uphold, like justice and protecting the weak, are twisted in a nightmarish way, it can create a great MHA horror story.