Perhaps a story in 'in a dark dark room stories' is about a person who gets trapped in the room. They have to face their fears and use their wits to find a way out. The darkness makes everything seem more terrifying, but they gradually discover hidden passages or clues that lead to their escape.
An adventurer might be a main character. They are used to facing challenges and the dark room is just another mystery for them to solve. They might bring their tools and knowledge to deal with whatever is in the room.
In a dark dark room, there was a girl who found an old diary. When she started reading it in the room, she realized it was the diary of a person who had died in that very room. As she read on, she felt a cold breeze and the pages of the diary started to turn on their own. It seemed as if the spirit of the dead was present and didn't want her to read further.
The lack of visibility in a dark room makes it scary. When we can't see, our imagination runs wild. We start to think of all kinds of monsters and ghosts that could be lurking in the shadows. For example, a simple creaking sound can be made into a terrifying event in our minds because we don't know what's causing it in the dark.
Well, perhaps the story about the old abandoned house. The descriptions of the dark, dusty rooms and the feeling of being watched make it really scary. It's like you can almost feel the coldness and unease as you read about the protagonist exploring the place.
It could be a horror story. The repeated 'dark' emphasizes the spooky atmosphere. Maybe there are some unknown and scary things lurking in that dark room.
There are various main characters across the different stories. For example, in 'The Green Ribbon', the girl with the green ribbon is a main character. She is a mysterious figure whose secret about the ribbon is the central mystery of the story.
People who are fans of short, atmospheric horror stories would love this book. It offers a collection of such stories that can be read in one sitting. Also, those who enjoy stories that build tension through simple yet effective language and settings would find it appealing. Since the stories are relatively short, it's great for someone with a short attention span but still wants to get into the horror genre.
In 'dark dark room and other scary stories', the tale of the cursed mirror might be quite scary. The thought that looking into a mirror could bring some sort of malevolent force into your life, and that it might show you things that aren't supposed to be seen, is really spooky. It plays on our superstitions about mirrors and the fear of the supernatural.