In a fanfiction where Percy Jackson turns into Cerberus, a lot of things could occur. Since Cerberus is a guardian of the Underworld, Percy might find himself in the Underworld without really knowing how he got there. His friends would be really worried about him. He might start to discover new powers that come with the Cerberus form. For instance, he could have enhanced strength and a powerful sense of smell. But he'd also face challenges like communicating with his friends, as he can't just talk normally in that form. He'd have to figure out a way to let them know it's him.
If Percy Jackson was kidnapped by SHIELD, it would be a chaotic situation. SHIELD is used to dealing with superheroes and advanced technology, but Percy comes from a whole different world of Greek mythology. His loyalty lies with Camp Half - Blood and his friends there. He would be desperate to escape and get back to them. And his demigod abilities would make it really hard for SHIELD to keep him locked up. He could use his sword, Riptide, to break out of any confinement and then use his water - based powers to create distractions and make his escape.
In the fanfiction, it could be that the dragon is a guardian of some sort. Percy finding it could lead to a whole new adventure where he has to protect the dragon from other forces that want to use it for evil. Since Percy is a hero, he would definitely step up to the challenge.
His personality would likely become more protective. Since Cerberus is a guardian, Percy might feel an intense need to protect those around him more than ever.
He could introduce some new combat styles to the Dueling Club. His experience in fighting monsters as a demigod would give him an edge. He might be a bit of an enigma to the Hogwarts professors too. They would be intrigued by his different kind of magic. And with his being betrayed, he could be a bit guarded at first, but gradually open up as he realizes that not everyone at Hogwarts is like those who betrayed him. He could also discover some hidden chambers or secrets in Hogwarts that have a connection to his demigod world, like a hidden place that has a link to the Greek gods.
Well, if Paul finds out in the fanfiction, he might be shocked at first. He could react in different ways depending on what he finds out exactly. Maybe he discovers Percy's true identity as a demigod. He might try to protect Sally more, or he could be scared and want to distance himself from the whole situation.
In a 'Percy Jackson turns evil' fanfiction, he might use his powers against his former friends. For example, his control over water could be used to flood Camp Half - Blood. His knowledge of the demigod world would also be a weapon in his hands to outwit and defeat those who oppose him.
Well, in the fanfiction, if Percy turns into a baby, he would probably lose all his skills and knowledge at first. But he might still have some instinctual connection to water. Maybe his friends like Annabeth would have to take care of him. She'd be really protective and try to find a way to turn him back.
In the 'Percy Jackson turns into a cat' fanfiction, he could end up in some really interesting situations. For example, he might be chased by some of the magical creatures at Camp Half - Blood that don't recognize him as Percy. His senses would be heightened as a cat, so he could detect things like danger or hidden treasures more easily. Also, it would be hilarious to see how Annabeth reacts when she first sees Percy as a cat. She might be confused at first but then try to figure out how to turn him back.
Perhaps Percy would use his knowledge of Greek gods and goddesses to impress the teacher. He could share some unique insights about a particular deity that are not commonly known. This could lead to him getting special privileges in the class, like being excused from a difficult assignment or getting extra credit.
She might discover new magical abilities that are unique to elves. For instance, elves are very good at household magic. Hermione could use these new skills to improve the living conditions in the Gryffindor common room. She could make the furniture more comfortable or keep the room cleaner without using much effort.