There are also plots where different dimensions are on the verge of colliding. This creates a sense of danger and urgency as the characters have to prevent the collision which could have catastrophic consequences for both their world and the other dimensions. In some fanfictions, a villain might be trying to use the power of different dimensions to take over the wizarding world.
Harry Potter himself is very common. Writers often use him to explore the new and strange pocket dimension. Hermione Granger is also popular as she would be eager to study and understand the unique magic of the pocket dimension. Ron Weasley might be there too, providing his usual humor and loyalty. Dumbledore could be a recurring character as well, perhaps having some prior knowledge about the pocket dimension and guiding the younger characters through its mysteries.
One popular plot is the discovery of a dragon egg. In fanfiction, it could be a situation where a character from either universe stumbles upon a dragon egg. If it's a Hogwarts student, they might try to hide it from the teachers and figure out how to hatch it, while also dealing with the potential danger it poses. If it's a character from The Hobbit, they might see it as a great treasure or a sign of something more significant.
One common theme is self - discovery. As Harry or other characters hop between dimensions, they often learn new things about themselves. Another is the exploration of different magical systems. Since each dimension can have its own unique magic, it's a great opportunity to explore that. And, of course, there's usually some kind of threat or mystery that spans across dimensions that the characters need to solve.
The concept of alternate destinies is also quite common. Harry might see versions of himself that are evil or that have become great heroes in different ways. This allows for a lot of character - building and exploration of the 'what - ifs' in the Harry Potter universe.
A common plot is the expansion of Dumbledore's Army. Writers often explore new members joining, different training methods, and more elaborate secret operations against Umbridge. Another plot is the personal vendettas students have against Umbridge. For example, Harry might be more directly confrontational in fanfiction compared to the books.
One common plot could be power struggles. Harry Potter, as the mafia boss, might be constantly fighting other powerful wizards or groups who want to take over his 'territory' in the wizarding underworld. Another plot could be about revenge. Maybe someone from his past in the wizarding world wronged him, and now he's using his mafia - like power to get back at them.
One common theme is the clash between traditional magic and industrial magic. Traditionalists may see industrial magic as a threat to the purity of magic. Another theme is innovation. Industrial magic often brings new magical devices and techniques. For example, magical assembly lines for potion - making.
Hermione is often a popular character. Her intelligence and resourcefulness make her a great asset in different dimensions. She can quickly adapt to new situations and figure out how the magic in that dimension works.
Harry Potter himself is often still a popular character. Since it's a dimension jumper fanfiction, his character can be explored in different scenarios across dimensions. Hermione is also popular as she can use her intelligence to figure out the differences in each dimension.
Well, in Harry Potter fanfiction, the 'Dimension Father' might be a character with a very specific role. Maybe he's a sort of guardian of the dimensional boundaries. He ensures that no dark magic from other dimensions seeps into the main Harry Potter universe. He could also be a source of knowledge for characters like Hermione who are always eager to learn new magic. For instance, he might teach her about the spells and incantations that are unique to other dimensions, which she could then use to help Harry in his fight against the dark forces.