In this fanfiction, perhaps Percy will make new friends at Goode who end up getting involved in his demigod world. There could be a plot where the school is in danger, and Percy has to use his powers and knowledge of the mythological world to protect it. Maybe he'll also have some interesting interactions with his teachers who suspect there's something different about him.
There could be a new bully at Goode who targets Percy because he senses Percy is different. This bully might turn out to have some connection to the mythological world, like being a descendant of a minor god.
Well, in the Percy Jackson books, there's no mention of Percy Jackson Goode reading Percy fanfiction. Fanfiction is more of an outside - the - official - story thing created by fans. It's not really part of the main plot or something the characters would typically be involved in. So, it's very likely that he doesn't read it.
Perhaps Percy goes back to Goode to find a sense of normalcy. He might try to participate in school activities like sports or clubs. However, his past as a demigod will surely follow him. His powers could accidentally surface during a school event, causing chaos and confusion among his classmates. He'd then have to figure out how to cover it up while also protecting those around him from any potential danger.
If Percy Jackson Goode read Percy fanfiction, he might first be a bit shocked at how fans have taken his story and spun it in different directions. He could find some versions where he's portrayed in a completely different light than he sees himself. However, he might also gain some new perspectives on his own adventures and relationships, seeing how fans view them from the outside. It could also make him more aware of his popularity among fans and the impact his story has had on them.
The fanfiction could start with Percy reluctantly taking on a teaching job at Goode. He tries to keep his demigod identity a secret at first. But then strange things start happening at the school, like students having prophetic dreams or unexplained disappearances. Percy realizes he has to use his knowledge and powers to solve these mysteries and also teach his students about the hidden world of gods and monsters. He might even bring in some of his friends from Camp Half - Blood to help out.
In the 'Percy Jackson returns to Goode' fanfiction, it could be that Percy has to face some challenges related to his dual identity. On one hand, he is a normal student at Goode, on the other, he is a demigod. This could lead to some interesting situations where he has to balance between the two worlds. For example, he might have to hide his demigod skills during a school competition but still manage to win in a rather unexpected way. Also, there could be new characters introduced, perhaps a new demigod who also attends Goode and Percy has to team up with them to face a common threat.
Percy going to Ilvermorny would be a wild ride. First, he'd be amazed by the castle itself. The four houses would be a new concept for him. He might be sorted into a house based on his heroic nature, like Thunderbird perhaps. He'd introduce the idea of Greek gods to the students there, which would cause quite a stir. And his relationship with Annabeth would be put to the test as they are separated by different magical institutions.
He might meet some talented witches and wizards. Maybe there would be a student who is an expert in magical beasts and they could share stories about their encounters with strange creatures.