One key feature could be the sense of claustrophobia. Stephen King is great at creating an atmosphere, and in a 'room' novel, the limited space can intensify the feelings of the characters and the readers. The characters might be trapped physically or metaphorically within the room, leading to a build - up of tension.
Characters can interact by simply thinking about what they need. If a character needs a place to hide a precious magical object, they can enter the Room of Requirement and the room will provide a hidden vault. Or if they need a place to practice a difficult spell without being disturbed, the room will create a soundproof area with all the necessary tools.
One key element is the relationship between the captives, especially the mother - son bond. Another is the sense of confinement and how they cope with it.
The key elements in 'the room science fiction' are often the unique features of the room itself. It could have strange portals or wormholes. Also, the technology used in the room is important. For example, it might have a self - sustaining power source or a teleportation device. And the people in the room, their relationships and goals, like if they are trying to escape the room which has some sort of dangerous experiment going on.
In a fanfic, the Room of Requirement could be a place where Harry and Ginny go to practice their magic together. They could be working on new spells or defensive techniques. Ginny could show Harry some of the unique magic she learned from her family. And in the process, their relationship deepens as they rely on each other and learn from one another.
They might start off as just friends going into the room to study or find something for their next adventure. But as they spend more time in the room, sharing secrets and relying on each other, their bond deepens. For example, if they're in the room trying to solve a mystery, they'll have to trust each other completely, and that can lead to a stronger emotional connection.
The condition of the spare room matters a great deal. It should be clean, comfortable, and well - equipped. If it's too shabby, guests or tenants won't be satisfied. Also, location can be an important factor. If it's close to public transportation or popular attractions, it's more likely to be successful.
In a panic room story, one key element is the panic room itself. It's usually a fortified and hidden space. Another element is the threat that drives people to use the room, like burglars or attackers. Also, the people taking refuge in the room are important, as their actions and reactions shape the story.