One idea could be that Percy, as a god, has a child with a mortal. The child might inherit some of Percy's powers but also face the challenges of being a demigod in a modern world. Maybe the story could focus on how Percy tries to protect his child from the various threats that come with being part of the godly world while also teaching the child to embrace their powers.
The child could have the ability to control water like Percy, but in a more extreme way. Since Percy is now a god, the child might be able to create entire oceans or control the water cycle on a global scale. It could also have enhanced strength and speed, typical of demigods, but on a much higher level.
Once upon a time, Percy, the god, watched over his child from afar. The child, named Alex, was growing up in a small village. Percy could only visit in secret, for the laws of the gods forbade direct interference. One day, when the village was in danger from a great flood, Percy had to decide whether to break the rules to save his child and the villagers. In the end, he sent a sign to Alex, guiding him to build an ark and save everyone.
His old friends from Camp Half - Blood like Annabeth could be his allies. She would support him through the transition of becoming a god. Grover too, as his long - time friend, would be there for him. Also, some of the minor gods who have always been on good terms with Percy, like Hestia, might offer their help and guidance as he steps into his new role as a god.
In this type of fanfiction, it could be a really interesting concept. Percy becoming a god already changes the whole dynamic of the Percy Jackson universe. And marrying Artemis, who is a virgin goddess in the original mythology, would be a huge deviation. It might lead to a story full of challenges as they have to deal with the reactions of other gods and goddesses. Maybe Percy's new - found godly powers would help him navigate the complex relationship with Artemis, who is known for her independence.
One possible plot could be Percy facing an ultimate battle that forces the Olympians to recognize his extraordinary powers. They then decide to make him a god as a reward and for the greater good of the pantheon. He might have to give up some of his mortal ties, like his relationship with Annabeth, which would create a great internal conflict for him.
In this type of fanfiction, it's a really interesting concept. One possible scenario could be that Percy's death is a heroic sacrifice. Maybe he gives his life to save the world from an even greater threat than before. And when he becomes a god, he might use his new powers to bring about a new era of peace among the gods and demigods. His transformation could also mean changes in his relationships. For example, his friends might now have to view him in a different light, as a divine being rather than just a fellow demigod.
If Percy Jackson were to become a hidden god in fanfiction, it would likely involve a lot of mystery and suspense. He'd have to navigate a world where he couldn't reveal his true nature easily and could potentially uncover some dark secrets along the way.
As the god of fate, Percy has to deal with the chaos that can result from interfering with fate. Even a small change in one person's fate can have far - reaching consequences. He also has to be constantly vigilant against those who would try to manipulate him into changing fates for their own gain. The balance between justice and mercy in his decisions regarding fate is another big challenge. He can't be too lenient or too harsh, and finding that middle ground while dealing with the vastness of all the fates in the world is an extremely difficult task.
In this fanfiction scenario, Percy might start to reshape the concept of heroism. He could create new quests and challenges for mortals to prove their heroism. He might also choose to protect heroes in a more direct way, perhaps using his powers to shield them from the worst of the gods' wrath or the most dangerous monsters.