Perhaps Percy has some sort of dark secret in the fanfiction that Paul discovers or suspects. This could make Paul scared of what Percy might be capable of.
In a 'Percy Meets Paul' fanfiction, Percy could be a demigod, like in the Percy Jackson series. He has powers related to the Greek gods. Paul, on the other hand, could be a normal human who is very intelligent and curious. Their meeting could be a chance encounter, like Percy accidentally stumbling into Paul's life while on a mission. Or Paul could be someone who has been unknowingly drawn into Percy's world of magic and mystery.
Percy is likely a character who has a lot of knowledge about the gods, perhaps he has had direct interactions with them. Paul, on the other hand, is someone who Percy is sharing this knowledge with, maybe he is new to the whole idea of the gods.
Maybe it's because Percy in the stories often challenges the traditional Roman beliefs and ways. His actions and abilities might seem threatening to the Romans in the fanfiction world.
There might be. Fanfiction is a place for creativity to run wild. Imagine Percy Jackson suddenly showing up in the wizarding world where Voldemort rules. Percy's powers are not based on magic as Voldemort knows it. His ability to summon water in a place like Hogwarts could be a huge shock. Voldemort, who is used to being the most feared in his world, might be scared when faced with a being like Percy who has such different and potentially overwhelming powers.
In fanfiction, monsters might be scared of Percy because he often has special powers. For example, he could be a powerful demigod with the ability to control water. His skills in combat also make him a formidable opponent. So, the monsters sense the danger he poses and are scared.
Perhaps Jason has his own ideas and interpretations of Percy, and the fanfiction goes against those. Fanfictions are often a creative exploration by different authors, and not all of them might align with Jason's view of Percy. He might be scared that these fan - made stories could influence how others see Percy in a way he doesn't like.
Well, maybe it's because fanfiction can take the story in all kinds of wild directions. The gods in the Percy Jackson world are used to a certain order and set of rules. Fanfiction might rewrite their fates or show them in unflattering or unexpected ways that they can't control, so they're scared.
Because Percy has powers from the gods. He can control water, which could be used to great effect against Voldemort. For example, he could flood areas or create water - based attacks that Voldemort may not be able to defend against easily.