Poe creates mystery by introducing strange events and objects. In his stories, there are often inexplicable happenings. For instance, in 'The Cask of Amontillado', the very act of Fortunato being led into the catacombs for a supposed wine tasting that turns into something far more sinister is mysterious. The use of symbols, like the black cat in 'The Black Cat', also adds to the mystery as the reader tries to figure out what they represent.
Poe uses vivid and grotesque descriptions. For example, the description of the Red Death with its blood - like stains on the body creates a very disturbing image. Also, the description of the rooms in the abbey, each with a different color that gives an eerie feeling.
Poe uses vivid descriptions of the Red Death itself. The appearance of the figure with the 'scarlet stains upon the body and especially upon the face' is very creepy. Also, the setting of the seven rooms, each with a different color and mood, adds to the horror. The black room at the end is especially foreboding.
He uses vivid descriptions. For example, in 'The Tell - Tale Heart', he describes the old man's eye in great detail, making it seem very creepy. Also, the characters' psychological states are often unstable, like the narrator in 'The Black Cat' who goes from loving his cat to hating it in a very disturbing way.
Poe creates horror through the description of the Red Death itself. The vivid and grotesque details of the disease, like the blood - covered face, are really scary. Also, the setting of the abbey which is supposed to be a safe haven but still gets invaded by death.
Poe uses vivid and disturbing descriptions. For example, in 'The Tell - Tale Heart', the detailed account of the old man's eye and the narrator's stealthy approach to the murder creates a sense of horror. Also, the sounds in the story, like the beating heart that won't stop, add to the unease.
In The Dark Tower short story, King creates mystery by introducing elements that seem to defy normal logic. There are creatures and phenomena that are not of the ordinary world. The way time and space work in the story is also a mystery. It's not clear how the characters can move between different places and times so easily, and this lack of clarity adds to the overall sense of mystery in the story.
He uses the character's actions. The narrator's cruel treatment of the cat, like gouging out its eye, is horrifying. It makes the reader feel a sense of dread.
The sense of horror is created through the psychological aspect. The narrator's deteriorating mental state is very disturbing. We see him go from a normal person to someone who commits heinous acts. And the way he tries to justify his actions makes it even more chilling. The presence of the second cat, which seems to be a symbol of his guilt, adds to the horror. It haunts him everywhere, and its appearance is often accompanied by an eerie feeling.
Poe creates horror through the narrator's unreliable voice. We can't fully trust what he says, which makes the events more mysterious. Also, the description of the cats, especially the second one with the strange mark on its chest, is spooky. The sudden and violent actions of the narrator, like killing the first cat, add to the horror.
By using the portrait as an enigma. If the portrait has a strange expression or a mark that no one can explain, it creates mystery. Also, if the backstory of the portrait is only partially revealed.