Well, a great plot could involve Percy and his father having to face a new and powerful enemy that is specifically targeting them because of their relationship. This could lead to them having to rely on each other's strengths. For example, Percy's father could use his powers over the sea to help Percy in a fight in a way that Percy has never experienced before. And as they go through this adventure, they could also have heart - to - heart conversations about family, duty, and what it means to be a hero.
Well, a possible plot for Percy Jackson father fanfiction is that Poseidon is forced to choose between Percy and his duties to the sea. This would create a lot of internal conflict for him. Or perhaps a story where Poseidon takes Percy on a journey through the underwater kingdoms that he has never seen before, introducing him to new allies and enemies. Additionally, we could have a plot where Poseidon has to team up with Percy to stop a powerful force that is threatening both the mortal and the demigod worlds.
One idea could be Percy using his water powers in new and unique ways to shape the early days of Rome. For example, he could use his control over water to create canals for trade or irrigation. Another could be Percy having to deal with the politics of Rome while also trying to hide his demigod nature. He might have to form alliances with certain Roman families while keeping his true identity a secret to avoid being persecuted.
Perhaps there's a powerful artifact that can only be activated by a father - daughter bond between Percy and Artemis. They are forced to work together to find and use this artifact to stop a great catastrophe. Along the way, they face many challenges. Percy has to deal with the fact that Artemis is a very different kind of 'daughter' compared to what he might expect, and Artemis has to come to terms with having a father figure for the first time in her existence.
One idea could be Percy discovering his new role as the Father of Chaos gradually. Maybe he starts having strange dreams or powers that he can't explain at first. For example, he might accidentally create small chaos portals without realizing it. Another plot could involve Percy having to deal with the other gods' reactions. Some would be fearful, while others might see it as an opportunity to gain power through him.
A great plot could be Percy getting into trouble in the mortal world and Poseidon having to come to his rescue without revealing his true identity to the mortals. This would create a lot of tension and interesting scenarios where Poseidon has to use his powers subtly. Also, they could be on a mission to save a group of sea creatures that are being hunted by an unknown and powerful force. Poseidon could be teaching Percy about the importance of all sea life along the way.
Perhaps they go on a quest to find a lost artifact that has the power to save their mother from a mysterious illness. Along the way, they face various challenges and learn more about their family's past. They might also encounter other demigods who either help or hinder them in their search.
Perhaps Sally starts a support group for the parents of demigods. This could lead to some interesting interactions and new friendships. Percy could be involved in helping her set it up and deal with the various challenges that come with it, like keeping it a secret from the mortal world and protecting it from monsters.
One idea could be Percy having to go on a quest specifically for a goddess who has lost her powers. He has to travel to different realms and face new monsters to retrieve a magical item that can restore her. Another could be Percy getting caught in a love triangle between two goddesses, which causes chaos among the gods as they take sides.
Here's a plot. Percy and his cousins are invited to a special tournament among demigods from all over the world. But it turns out to be a trap set by an evil force that wants to use their combined powers for its own dark purposes. As they fight to escape, they learn more about their individual strengths and how to work together as a family. They also meet some interesting new characters from different mythologies during their struggle, and these new allies help them in unexpected ways to defeat the evil force and save the day.
One idea could be a quest where Percy and Artemis have to team up to rescue a group of demigods captured by a powerful new enemy. Maybe a Titan who has found a way to drain the powers of young demigods. Percy's skills in water manipulation and combat, combined with Artemis's archery and her connection to the moon, would make for an exciting adventure as they face various challenges along the way.