A great plot could also be Percy and Annabeth swapping their skills for a day. Percy tries to use Annabeth's strategic thinking to solve a minor mystery around the camp, like who's been stealing the good ambrosia. And Annabeth attempts to use Percy's water powers to create some kind of water - based structure or art. This humorous swap would lead to a lot of funny situations and also strengthen their understanding of each other as best friends.
One plot idea could be Percy and Annabeth going on a quest that has nothing to do with the main prophecies. They could be exploring an ancient, forgotten land just for the fun of it and to learn more about the world. Along the way, they face challenges that test their friendship like when Percy accidentally angers a local spirit and Annabeth has to use her wits to calm the situation.
One plot idea could be that Athena tasks Percy and Annabeth with a special quest that involves retrieving a long - lost artifact of hers. This could test their relationship as they face various challenges together. Another could be that Athena reveals a long - hidden secret about Annabeth's family that Percy has to help her come to terms with. Maybe it's something that changes their perception of their destinies within the demigod world.
One idea could be that it's all a big misunderstanding. Maybe Annabeth thought Percy did something to endanger their quest, like made a deal with a suspicious character without telling her. So in her anger and fear for their safety, she hits him. But then they quickly realize it was a miscommunication and have to work together to fix the situation.
One idea could be a moment of comfort. Maybe Percy has had a really tough battle and is shaken up. Annabeth touches his hand gently to let him know she's there for him, and this simple touch leads to a deep conversation about their future together. It could also be a situation where they are exploring an ancient ruin. Annabeth touches Percy's arm to stop him from triggering a hidden trap, and from there, they work together to decipher the secrets of the place. Another plot idea could be a dream sequence where Annabeth's touch has a magical or prophetic meaning, and they have to figure out what it all means in relation to their quest.
One idea could be their first meeting at a summer camp for demigods. Maybe Percy is lost and Annabeth, being the smart one even as a kid, helps him find his way around. Another plot could be them teaming up for a camp quest. They might face a minor monster together and learn to rely on each other's strengths, like Percy's courage and Annabeth's intelligence.
Perhaps there's a curse on their neighborhood that only they can break. They have to work together, using Percy's powers over water and Annabeth's wisdom. They might start by researching in the local library, then go on adventures around the area to find clues. Along the way, they meet new characters, some friendly and some not, and their relationship grows stronger as they overcome each obstacle.
One plot idea could be Percy and Thalia going on a quest together to find a lost artifact that has the power to save their camp from a new threat. Another could be them getting into an argument over how to handle a new demigod at camp, which tests their friendship but ultimately makes it stronger. Maybe they could also travel to a different realm together where they have to rely on each other completely to survive and get back home.
One idea could be that Percy and Jason have to team up to save a group of demigods who are trapped in an ancient, cursed maze. They use their combined powers of water and lightning to break through the various obstacles. Another could be a story where they swap powers for a day and have to deal with the consequences. For example, Percy tries to control lightning but accidentally zaps some of their friends' hair into crazy styles, while Jason struggles to keep the water from going wild when he tries to use Percy's power.
One idea could be that Percy and Leo team up to build a super - cool underwater vehicle using Leo's mechanical skills and Percy's knowledge of the sea. Another could be them going on a quest to find a lost artifact that has powers related to both fire and water. They could face challenges like sea monsters and mechanical traps along the way.
A plot could be set in a post - apocalyptic world where Percy and Annabeth are on opposite sides at first due to some misunderstanding. As the story progresses, they realize they need to work together to face the real threats in this dark new world.
One plot idea could be that Percy is so caught up in his own heroic deeds and adventures that he completely misses all of Annabeth's subtle hints of her feelings for him. Meanwhile, Annabeth tries different ways to get his attention, like helping him with his studies in a very flirtatious manner, but Percy just thinks she's being a good friend. Another could be Percy getting into a situation where he has to protect Annabeth without realizing his true feelings for her are deeper than friendship, and throughout the fanfic, his obliviousness slowly starts to fade as he gets closer to her in the face of danger.