It could be that the Goodman associated with the camera has a dark past. Maybe he was involved in some sort of evil experiment or ritual related to the camera. And as the story unfolds, the people who come across the camera start to experience the consequences of Goodman's actions, like being haunted by the spirits he might have angered.
The scariness might also come from the way the camera alters reality. In the story, it could be that when the camera takes a picture, it changes the world around it in a spooky way. Like, things that were normal before become distorted or menacing in the photograph, and then those changes start to seep into the real world, causing fear among the characters.
Well, perhaps it could be the unknown. Maybe the camera Goodman is a cursed object in the story, and every time someone uses it, something terrifying happens. For example, it might show images of ghosts or otherworldly beings that are not supposed to be seen.
Well, there's Goodman of course. He's probably the central figure related to the camera. He might be a mysterious character, perhaps an inventor or an occultist. Then there could be the people who find the camera later. They are likely the ones who start to experience the horror.
The mystery of it. Camera obscura is an old device, and not many people know how it really works. In a horror story, this lack of knowledge can be used to create fear. For example, strange images can appear in it without any obvious explanation.
In the 'Scary Sally Story', it could be the sense of isolation that Sally feels that makes it so scary. If she is alone in a place where she can't get help easily, such as in an old mansion in the middle of nowhere. And if there are things that seem to be out of place or not normal, like objects moving by themselves or strange voices whispering in her ear. The combination of being alone and these abnormal occurrences can be truly terrifying. It also might be that Sally herself is a relatable character, so readers or listeners can put themselves in her shoes and feel the fear more intensely.
The mystery surrounding Gengar adds to the fear factor. We don't really know where it comes from or what its true motives are in a scary story. It could be lurking anywhere, waiting to play a cruel trick on an unsuspecting victim. It might be hiding in the corner of a spooky attic or in the bushes outside a lonely house, and this sense of the unknown makes it extremely scary.
The atmosphere. If it's set in a dark, isolated place, it can be really frightening.
His actions might make him scary. For instance, if he stalks people in the story or does something really cruel to his victims. Also, the mystery surrounding him. If no one knows where he came from or what his motives are, that adds to the scariness.
The setting of the story might make it scary too. If the bear is in a place where people feel they should be safe, like a backyard or a small town. And if the characters in the story are helpless against the bear, like they don't have any proper weapons or means of protection. The idea that the bear can overpower them easily makes the 'the scary bear story' a truly scary one.
It could be the setting. If the story takes place in a spooky location like an old cemetery or a haunted house, that would make it scary.
Perhaps the way the thumb is described in the story. If it's described as being pale, with long and sharp nails, or if it has some sort of oozing substance on it, that would make it quite scary. Also, if the thumb is associated with some sort of dark magic or a curse. For instance, in the story, whenever the thumb is present, bad things start to happen to the people around it. It could be that people start having nightmares, or they see strange apparitions, all related to the presence of this thumb. And it keeps getting closer and closer to the main characters, creating a sense of impending doom.
The toad might be scary because it could represent something unnatural or a disruption of the normal order. For example, if it has some strange behavior like being able to communicate in a human - like way or if it has powers that defy the laws of nature. Also, if it's associated with a place that is already considered spooky, like a haunted forest, it adds to the scariness. The toad could be seen as a symbol of an evil force that has invaded a natural setting.