In this fanfiction, Percy living alone could mean a whole new set of adventures. Maybe he's chosen to isolate himself after all the chaos in the demigod world. He could be exploring his powers in solitude, away from the distractions of Camp Half - Blood. It also might lead to some self - discovery as he doesn't have to rely on his friends all the time.
One great 'Percy Jackson Sea Prince Fanfiction' is 'The Sea Prince's Ascent'. It really delves into Percy's newfound powers as a sea prince. The author does an amazing job of describing how Percy navigates the complex underwater politics. Another good one is 'Percy, the Sea Prince and the Quest for Atlantis'. It combines the adventure elements typical of the Percy Jackson series with Percy's role as a prince of the sea.
It would be really exciting. Percy could learn so much more about his powers directly from Poseidon. He might get special training, like learning to control the sea in ways he never thought possible. And they could have father - son bonding time, maybe going on adventures together in the underwater world.
Well, one possible plot could be Percy having lost his memory. He's living on the streets, trying to figure out who he is. Maybe he has these strange dreams about a sword and a camp, but he can't quite make sense of them. As he survives on the streets, he starts to discover he has some strange abilities, like being able to control water from the puddles during rainstorms.
Percy living alone might also lead to him having a different relationship with the gods. He may become more independent from them, not relying on their occasional help. This could make the gods view him in a new light, either as a threat or as a more self - reliant and respected figure. He could start to question the gods' motives and actions more deeply, leading to some interesting confrontations or discussions.
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.
Some fanfictions might explore Percy's relationships in this underwater setting. For example, how his friendships with Annabeth and Grover change. Maybe he makes new friends among the underwater beings. Also, there could be a plot about Percy protecting the underwater world from a new threat that is specific to that environment, like a powerful and evil sea monster that is causing chaos among the underwater civilizations.
In a fanfiction where Percy Jackson lives in Tartarus, perhaps he could be on a quest to find a way out. He might encounter new and terrifying monsters that are native to Tartarus. Maybe he forms an unlikely alliance with some of them to survive. He would also have to constantly battle the harsh environment, like the rivers of fire and the never - ending darkness.
One interesting plotline could be the characters from different parts of Percy Jackson's world suddenly finding their lives intertwined in unexpected ways. For example, demigods from different camps having to team up against a new, powerful threat that targets all of them regardless of their origin.
One possible storyline could be Percy having to deal with the constant gloom and the various creatures that lurk in the underworld. He might try to find a way to bring some light or hope to the place. For example, he could use his powers to make small areas more habitable for the lost souls there.