Another element is the threat they represent. Red eyes usually belong to some sort of menacing entity, whether it's a ghost, a monster, or a demon. They are often associated with danger and the unknown. In some stories, the characters who see the red eyes end up being chased or attacked.
One common element is the feeling of being watched. Eyes are often associated with a sense of surveillance. For example, in many stories, the protagonist feels as if unseen eyes are following them. Another is the idea of possession through the eyes. Like in some tales where an evil spirit can enter a person's body through their eyes. Also, abnormal appearances of eyes, such as glowing or having strange markings, are often used to create horror. This makes the eyes seem otherworldly and menacing.
Red eyes in such a context could symbolize danger. For example, in many horror stories, a creature with red eyes often represents a threat to humans.
A possessed human might have red eyes. If a person is under the influence of an evil spirit, their eyes could turn red as a sign of this possession. This is a common trope in horror stories where the possessed person then goes on to do all sorts of terrifying things.
Another common element is the use of the unknown or the supernatural. In many of these novels, there are things that go beyond human understanding. For instance, a blood - thirsty demon that can't be killed by normal means. The characters are often put in situations where they are powerless against these blood - related and supernatural threats, which makes the reader feel a great sense of horror.
A common one is getting overcooked lobster. It's tough and chewy instead of tender and delicious. It's such a disappointment when you're looking forward to that succulent lobster.
There was a small village that was haunted by a creature with red eyes. Every night, it would lurk in the shadows near the well. One day, a traveler came to the village. Ignoring the warnings, he went to the well at night. As he was drawing water, he saw a reflection in the water - red eyes staring back at him. Before he could react, a hand with long, sharp nails reached out from the well. He barely escaped with his life, but he was forever haunted by the memory of those red eyes.
A prevalent theme is mystery. The red eyes are not a part of the regular Ash in the official Pokémon series, so fanfiction often uses it as a source of mystery. It could be about the origin of the red eyes or what they truly mean for Ash's future. Also, destiny is a common theme. It's like the red eyes are leading Ash towards a special destiny that he has to fulfill.
Isolation. Often, in IT horror stories, the characters are isolated. For example, a lone system administrator might be the only one in the server room when something strange starts to happen with the servers. Another common element is the loss of control. The technology that is supposed to be under human control suddenly starts acting on its own, like a self - driving car going berserk in an IT - related horror scenario.
Horror stories often feature a protagonist who is in over their head. They might start out as an ordinary person, like in 'Rosemary's Baby' where Rosemary is just a normal woman, but then they are thrust into a terrifying situation. Settings also play a big role. Abandoned asylums, cemeteries, and old mansions are common settings in horror stories as they have an air of mystery and danger already associated with them.
Fear of death is a big element in horror stories. The threat of death, whether it's from a serial killer or a supernatural force, is always present. Also, there's often a sense of helplessness. The characters find themselves in situations where they seem to have little control over what's happening to them. For instance, in 'The Blair Witch Project', the characters are lost in the woods and being hunted by an unknown entity. There's also the use of suspense. Writers build up the tension by delaying the reveal of the horror, making the readers or viewers more and more anxious as the story progresses.