Well, perhaps Percy moves to a new town and has to start at a new school. He might struggle to make friends at first, feeling like an outsider. Then he could meet someone who changes his perspective and helps him fit in.
Obviously Percy would be one of the main characters. And there could be a new friend he makes in the new place, let's say a girl named Lily who helps him explore the new town.
Well, it could be a lot of things. Maybe Harry moves to a new magical place, like a hidden wizard village far from Hogwarts. He might meet new and interesting characters there, and have adventures that are different from his usual ones at school.
Obviously, Harry would be one of the main characters. But there could also be new characters that the author creates for the story. Maybe there's a wise old wizard who takes Harry under his wing in the new place he moves to.
Well, it could be that Harry moves away to escape some dark magic threats in his hometown. Maybe he goes to a far - off magical community where he has to learn new spells and make new friends.
Maybe it's an ancient and powerful entity that has been awakened. Percy might be in the wrong place at the wrong time and this entity, seeing Percy as an intruder or a potential disruptor of its slumber, decides to seal him away using its otherworldly powers.
One possibility could be that Hermione moves away to protect the dragon. Maybe she discovers some dark forces are after the dragon for its magical properties, and by moving away with it, she hopes to keep it safe in a secluded location. She might have to face many challenges during this journey, like finding a suitable place for the dragon and dealing with those who oppose her decision.
One common plot could be the emotional turmoil that Peter and Liz experience as they part ways. Maybe they have a big argument before one of them moves away.
Obviously, Percy would be the main character. There could also be some characters from the original Percy - related universe who might make an appearance to help him adjust or just to check on him. And from the Forks side, characters like Bella or Edward (if it's in the Twilight - Forks setting) could potentially cross paths with Percy. Maybe they become friends or foes depending on how the story unfolds.