I don't really know what 'iur' is supposed to be. But if it's a horror story, it could be about a family moving into a new home and finding out it was the site of a murder. They start experiencing paranormal activities like cold spots and objects moving by themselves.
I'm not familiar with 'iur little horror story'. However, if it was a horror story, it might involve things like a cursed object. For example, a doll that seems to move on its own. Every time someone touches it, they start having nightmares filled with dark, menacing figures.
It could be that in the '19 horror story', there are 19 victims of a serial killer. The killer has a very strange and terrifying modus operandi. He leaves a mark on each victim that is related to the number 19, and as the story progresses, the police are trying desperately to catch him before he gets to his 19th victim.
The plot could be that an evil wizard casts a spell on Shrek's swamp. The swamp turns into a dark, foreboding place full of deadly creatures. Shrek has to fight his way through hordes of these monsters while also dealing with his own fears. The spell also makes him see hallucinations of his worst nightmares, like losing Fiona forever.
One possible plot for the ellen horror story is that Ellen is a journalist investigating a series of disappearances in a small town. She starts to dig deeper and discovers that all the disappearances are linked to an old abandoned factory on the outskirts of the town. When she goes to the factory, she is trapped inside. There, she encounters strange creatures that seem to be made of shadows. As she tries to escape, she realizes that the factory has some sort of dark power that is trying to consume her.
The scariest could be when the little wren is in a field that is suddenly surrounded by a thick fog. Out of the fog, strange, half - seen shapes start to move towards it. And every time it tries to fly away, it just hits an invisible barrier as if it's been trapped in a nightmare world.
One possible theme could be the fear of the unknown. In many horror stories, the scariest part is not knowing what is out there. It could be that in your story, the main character is constantly in the dark about what is causing all the strange events.
Maybe it could be about a little sister who accidentally shrinks due to a magical spell. Then she has to face all kinds of challenges in a world that has suddenly become huge for her, like trying to get back to her normal size while avoiding being stepped on by the family cat.
A reverse Little Mermaid story could be that the mermaid, instead of sacrificing her voice and tail for love, uses her beautiful voice to lure sailors to their doom in the ocean, protecting the secrets of the sea from human intrusion. And her tail, which is a symbol of her power, is used to create powerful currents to keep ships at bay.
Perhaps in a shrinking little sister story, there's some sort of scientific experiment gone wrong in the house. The little sister is caught in the blast and shrinks. She has to communicate with her family in creative ways since they can't immediately see her. She might use her wits to get their attention, like making tiny fires to create smoke signals. In the end, her older brother, who is a science whiz, figures out how to reverse the process.
Maybe the story is about Stuart Little's journey to find the perfect subject for his painting. He travels around his house and the neighborhood. Along the way, he meets different animals and objects that give him ideas. Eventually, he decides to paint a sunset over the cityscape he can see from his window. He spends days working on it, adding details like the twinkling lights of the buildings.