Well, a really scary mermaid story often has an element of the unknown. Maybe the mermaid has a strange form that's not the typical beautiful image. It could have extra limbs or a distorted body. The mermaid's lair can also be a factor. If it lives in a deep, dark cave filled with the bones of its victims, that's super creepy. And the way it hunts humans, whether it's by stealthily following a ship for days or suddenly emerging from the water right next to an unsuspecting sailor, all contribute to making a mermaid story scary.
The powers of the mermaid can make a story scary. For instance, if a mermaid can control the sea, create huge waves, or sink ships at will, it's terrifying. A mermaid that uses mind - control on humans through its song is also a great element. Moreover, a backstory of the mermaid being cursed or having a vendetta against humans can add depth and horror. Say, a mermaid who was wronged by humans in the past and now seeks revenge on all seafarers.
The idea of mermaids luring people to their deaths is really chilling. It's like a false allure. They look beautiful and sing sweetly, but in reality, they are leading you to danger. Also, the fact that they are not fully human means their morality and intentions are not like ours. For example, a mermaid might think it's okay to drown a sailor just because she's curious about humans. It makes them unpredictable and thus scary.
The idea of the Little Mermaid losing her voice can be seen as a horror element. She gives up such an important part of herself for a chance at love with the prince. Also, the sea witch's deal is quite terrifying. She has to endure great pain when getting her legs, like feeling as if she's walking on knives. And in some darker interpretations, the possibility of the prince never loving her back and her turning into sea foam is a tragic and somewhat horror - like end.
One element is the setting. Dark and isolated places like an old cemetery or a haunted house can be really scary. For example, a story set in a derelict asylum where the walls are crumbling and there are strange noises coming from the empty rooms. Another element is the unknown. When there are things that the characters (and the readers) can't explain, it creates fear. Like a strange figure that disappears when you look directly at it. Also, the use of suspense. If a story builds up tension slowly, for instance, by having a character hear footsteps getting closer and closer but not knowing what's causing them, it makes the story scarier.
One element is its appearance. For example, if a dog has matted fur, bloodshot eyes, and bared teeth, it immediately looks menacing. Another is its behavior. If it growls constantly, stalks people, or chases them without any obvious reason, that's scary. Also, the context matters. If the dog is in a spooky place like an old, abandoned building or a dark forest, it adds to the scariness.
One element could be a dark twist on the sea witch. Instead of just taking her voice, the witch could turn her into a grotesque half - fish, half - monster. Another element is the prince's betrayal. He could use the mermaid's love for him to his advantage and then abandon her in a cruel way. Also, the ocean itself could become a source of horror, like it turns into a blood - red color and is filled with mutated sea creatures that attack the mermaid.
One element is the unknown. When things are not clearly defined, like in a story where there's a strange noise in the dark but you don't know what's making it, it creates fear. Another is the sense of isolation. If the character in the story is alone in a spooky place, like an old house in the middle of nowhere, it amps up the scariness. Also, the use of the supernatural, such as ghosts or demons, can be really terrifying.
Unnatural features can make a doll scary. Such as long, sharp fingernails on the doll's hands, or a strange mark on its body. The way the doll is dressed can also contribute. A tattered, old - fashioned dress that is stained can be quite disturbing. And if the doll has a smell, like a musty or rotting smell, it makes the story even more frightening. The interaction between the doll and the characters in the story, like the doll causing harm to them, either physically or mentally, is another factor that makes a doll scary in a doll scary story.
The deal with the sea witch is a major horror element. She has to give up her most precious possession, her voice, and endure the transformation into a half - human form that causes her constant pain. It's like a Faustian bargain in a way.
Well, the atmosphere is crucial. A good scary campfire story often has a setting that is either very dark or has an eerie stillness. For example, a campsite near a cemetery or a place where there have been mysterious disappearances. Unnatural events are also great elements. Such as objects moving on their own, like a camping chair suddenly sliding across the ground for no reason. And the characters' fear reactions can enhance the scariness. If they start to see things that others can't, or if they feel a presence that can't be explained, it makes the story more intense.
One element is an unexpected change in the familiar environment. For example, if a person comes home and finds furniture moved around or things out of place without explanation. Another element could be strange noises. Like creaking floors or whispering sounds when no one else is supposed to be home. Also, the feeling of being watched. Even if there's no one visible, that sense can create a lot of fear.