The fanfiction could start with Percy being lost at sea as a baby. Instead of being found by his normal family, he is taken in by a pod of dolphins or some other intelligent sea beings. As he grows, he learns to communicate with all sea life. He then discovers his demigod heritage but feels more at home in the sea. His adventures could include using his sea - based powers to fight against underwater villains who want to disrupt the balance of the ocean world, and he has to decide whether to stay in the sea or embrace his role on land.
Obviously Percy himself would be the main character. But there could also be sea nymphs like Amphitrite who could play a big role in raising him. Maybe Triton, son of Poseidon, could be a mentor figure to Percy.
One possible plot could be that Percy discovers he has a special connection with dragons. Maybe he finds out that the dragons sense his demigod powers and take him in as one of their own. He then learns dragon - related skills like flying on their backs or using dragon fire in battles against his usual foes in the Percy Jackson universe.
One possible plot twist could be that Percy's wolf - raised nature gives him unique abilities. For example, he might have enhanced senses like super - hearing or smell. This could change the way he approaches battles in the Percy Jackson universe. Instead of relying solely on his demigod powers, he could use his wolf - like instincts to outwit his enemies.
Well, it could be that Percy is raised by a specific god like Poseidon but in a more direct and involved way. Maybe the god teaches him all kinds of super - secret powers and knowledge that normal demigods don't get. For example, he might be taught how to control water in ways that are far beyond what he learned at Camp Half - Blood. This could lead to him having a whole new set of adventures, facing different kinds of monsters and challenges that are related to the god's domain.
Perhaps in this fanfic, Percy is raised as a sort of prince on Olympus. He could be given tasks by the gods to prove his worthiness to be among them. This might include going on quests that are not just for the safety of the mortal world, but also for the stability of Olympus itself. He would also have to navigate the complex social hierarchies among the various gods and goddesses.
Well, it could be about Percy learning to survive in the wild using his demigod abilities in unique ways. Maybe he discovers new mythical creatures that are only found in the wild areas he's in.
The plot could be centered around Percy's identity crisis. Since he's raised by Apollo, he might struggle with whether he should follow Apollo's more flamboyant and carefree ways or stay true to his own nature. He could be exposed to Apollo's many lovers and children, which would make him question his place in this complex family. Additionally, his relationship with other demigods would change. He might be seen as an outcast by some who are loyal to Poseidon, while others might be jealous of his connection to Apollo. This would lead to various adventures where he has to prove himself not just as a son of Poseidon but as someone with a unique upbringing under Apollo.
One possible plot could be that Percy, being raised by Artemis, grows up with a deep connection to nature and the moon. He might be trained in archery and hunting from a young age. Since Artemis is a virgin goddess, Percy would have to deal with the unique situation of being part of her all - female group, perhaps facing some initial resistance from the hunters. He could also develop special powers related to the moon or gain an enhanced sense of stealth.
If Percy Jackson was raised in the Underworld, his personality would likely be much darker. The environment of the Underworld is gloomy and full of death. He could be more brooding and less trusting. His fighting style might also change, incorporating more of the Underworld's magic and powers. He may even have a different weapon, something more associated with the Underworld like a bone - made sword or a whip made from the shadows of the dead.
One possible plot twist could be that Percy has a different set of powers. Since Hades is the god of the underworld, Percy might have an affinity for shadow manipulation or communicating with the dead in a more in - depth way than in the original stories. For example, he could be able to summon undead warriors to fight for him.