He might try to incorporate some of the Percy Jackson elements into his own adventures. For example, the idea of having a closer relationship with the gods could be something he'd think about. Maybe he'd start looking for ways to communicate with the magical beings in his world in a more direct way like Percy does with the Greek gods.
The story could change in a big way. If Harry gets inspired, he might change his approach to fighting the dark forces. Instead of relying only on his Hogwarts training, he could take a page from Percy's book and use more of his own instincts and the power of friendship in a different way. He might also start exploring the deeper roots of magic in his world, similar to how Percy delves into Greek mythology.
The story would change a great deal. His character arc would shift. Instead of the typical male hero's journey, he'd be on a more unique path. For one, the way he's perceived by others would be different. The gods might interact with him in new ways. Poseidon might have a different kind of relationship with his 'daughter' now. And his enemies would also approach him differently. They might underestimate him more because he's a girl, which he could use to his advantage.
He might be quite intrigued. Harry Potter is from a magical world himself, and seeing the different magical concepts and adventures in Percy Jackson fanfiction could be fascinating for him. He could compare and contrast the two magical universes, like how the magic is used, the different mythologies involved, and the types of challenges the characters face.
The story could change in many ways. For example, Harry might start using some of the tactics that Percy uses in battles. He could also be more interested in the outdoors, like Percy, instead of just the castle grounds. And his view of magic could expand to include the more physical and elemental powers that the demigods have.
His confidence would still be there but might be a bit more subdued as he adjusts to the new world. He's used to being a big shot among demigods, but in Hogwarts, he has to start from scratch.
If Percy Jackson gets a trident in fanfiction, his relationships would shift significantly. His friends like Annabeth would see him as an even greater asset in their quests. However, some might also be worried that the power of the trident could go to his head. His enemies, especially those from the sea - related villains, would be more cautious around him. And he might attract new allies who want to be on the side of someone with such a powerful weapon.
His life would change drastically. He'd be exposed to different mythologies. Instead of just the wizarding lore, he'd learn about Greek gods and monsters. His combat skills might improve as he learns demigod - like fighting.
If Percy were a baby in fanfiction, the power dynamics at Camp Half - Blood would shift. Without Percy's combat skills and leadership, others would need to fill the void. The story might focus more on the characters' attempts to protect and care for baby Percy. And there could be new plotlines about finding a way to reverse his condition, which could involve seeking help from new or unexpected sources.
His perspective on power might change. In the Harry Potter world, magic is a natural part of life for him. But in RWBY fanfiction, power comes in different forms like semblances and the use of Dust. He would see that there are other ways to be strong and protect people that don't rely solely on spells.
After reading the fanfiction, Percy could have a more in - depth understanding of the wizarding world. He might start to think about how the social structure in the wizarding world compares to that in his demigod world. He might also be more curious about the history and lore of the wizarding world, and how it developed compared to his own world of Greek gods and monsters. He could even start to imagine what it would be like to be a wizard, with all the unique spells and magical items, and how that would change his approach to dealing with his own problems.
Well, if Percy Jackson was from London, the whole setting would be different. Instead of Camp Half - Blood being in the US, it might be in some remote area of the UK. The mythology would still be there but with a British twist. For example, the encounters with the Greek gods might happen in more British - like landscapes. Maybe instead of going on quests across the US, he'd be traveling around the UK, dealing with British - influenced monsters.