In 'percy gets seald away fanfiction', a common plot could involve Percy having to face his inner demons while sealed away. Since he's alone, he has time to reflect on his past actions and relationships. There could also be a plot where the entity that seals him away has some connection to Percy's family history, and he has to uncover this mystery in order to escape.
One possible plot could be Percy's struggle against the power that seals him away. Maybe he has to find a way to communicate with his friends on the outside to get help. Another could be the discovery of the true motives behind his seclusion.
Obviously, Percy is one of the main characters. His friends like Annabeth might also be important as they could be the ones trying to find and rescue him.
Another plot could involve Harry being seild away accidentally during a magical experiment gone wrong. He could end up in a different time period, like the past of the wizarding world. There, he might interact with the founders of Hogwarts, which would be really interesting as he could learn about the origins of the school and the magic they used. He would also have to find a way to get back to his own time.
Well, perhaps there could be a plot where Percy, as a girl, has to form new relationships. She might have a different dynamic with her male friends now that she's a girl. And there could be a story arc about her coming to terms with her new identity. Maybe she discovers new aspects of herself that were hidden when she was a boy. Also, it could be interesting if she uses her new form to her advantage in some situations, like fooling her enemies who are used to dealing with the male Percy.
One interesting plot could be Percy's struggle to survive in Tartarus alone. He might have to face the various monsters there without his usual allies. Another plot could involve him finding a way to escape Tartarus using his wits and the powers he has. Maybe he discovers some secrets about Tartarus that no one else knows.
One possible plot could be Percy getting drunk and accidentally revealing his true feelings to a friend or love interest. For example, he might finally admit his long - hidden admiration for Annabeth while in a drunken state.
Maybe it's an ancient and powerful entity that has been awakened. Percy might be in the wrong place at the wrong time and this entity, seeing Percy as an intruder or a potential disruptor of its slumber, decides to seal him away using its otherworldly powers.
One possible plot could be Percy trying to hide his cancer from his friends at Camp Half - Blood at first. He doesn't want them to worry or think he's weak. But as the symptoms get worse, he has to tell them. Then they all band together to try and find a cure, whether it's through mortal medicine or some magical demigod - related remedy.
One possible plot could be that Percy is targeted by a group of jealous rivals. Maybe they envy his status or abilities in the story's world. They might ambush him in a secluded place like an alleyway near his school or in a forest he often visits.
Perhaps Percy discovers a secret that is so dangerous that the powers - that - be decide to seal him away to keep it safe. It could involve a prophecy that he might fulfill in a way that would change the world in a way they don't want. So, they use some ancient magic or a powerful artifact to seal him. For example, if there's a prophecy about Percy uniting two warring factions in a way that would upset the current balance of power, those in power might try to stop it by sealing him away.
One possible interesting plot could be Percy's struggle with immortality. He might face the loneliness of outliving his friends and loved ones. Another could be how he uses his immortality to protect the world in new and different ways, perhaps by being able to take more risks without the fear of death.