Well, in this fanfiction, perhaps Percy's mother was not Sally Jackson but had some connection to Black Widow. This could lead to a whole new origin story for Percy. He might be trained in the ways of a spy or assassin along with his demigod training. His journey could involve infiltrating some dark underworld organizations that are a threat to both the mortal and demigod worlds, using his unique combination of skills.
One possible plot could be Percy finding out he has a connection to Black Widow. Maybe he discovers some hidden powers or abilities that are related to her skills. He could then face challenges in the demigod world where his newfound 'Black Widow - like' traits help him out, like enhanced combat skills or strategic thinking.
The plot might involve Black Widow being sent on a mission to investigate some strange happenings that turn out to be related to the magic and mythology of Percy Jackson's world. Percy gets involved because he has knowledge of these things. They start off at odds but as they uncover the mystery together, they start to respect and rely on each other. Their different backgrounds - Percy from a world of gods and monsters and Black Widow from a world of superheroes and villains - would create a lot of room for interesting character development and plot twists.
One possible plot could be that Percy Jackson, with his water - controlling powers, gets transported to the Marvel universe. He meets Black Widow during a mission where they are both after a powerful artifact that has ties to both the Greek mythology in Percy's world and some secret Hydra project in the Marvel world. They start off as distrustful allies but gradually learn to work together and respect each other's skills.
Percy's character might become more stealthy and calculating. He'd probably learn to analyze situations more like Black Widow does. Instead of just charging into battle, he'd think about the best approach first.
A possible plot could be Percy discovering his Asgardian heritage and being taken to Asgard. There, he has to prove himself worthy among the Asgardians while also trying to figure out how his demigod powers interact with his new - found Asgardian abilities.
Well, the plot could be centered around Percy's newfound ability to see through things like Superman. This could give him an edge in battles against the monsters that lurk in the shadows in the demigod world. He might also start to exhibit heat vision, which could be both a blessing and a curse. On one hand, it could be a powerful weapon against his foes, but on the other hand, he has to learn to control it so as not to harm his friends. The fanfiction could explore how he trains with the help of the demigod trainers and perhaps some of Superman's allies from his own world to master these new powers.
One possible plot could be that the son of Artemis discovers a threat to the demigod world that is related to his mother's domain. He then seeks out Percy for help because of Percy's reputation. Together, they embark on a journey to find a magical artifact that can stop the threat.
One idea could be that Black Widow is somehow transported into the Percy Jackson universe. Maybe she has to team up with Percy and his friends to defeat a common enemy. Since she has her combat skills and spy training, she could offer a different perspective on battle strategies compared to the demigods.
One possible plot could be that Harry Potter, as the son of Black Widow, discovers his mother's secret past in the wizarding world. He might inherit some of her unique skills, like her combat abilities, and use them to face new threats in Hogwarts. Maybe he forms a special group of friends who are intrigued by his strange heritage and they all embark on adventures together.
Well, in a 'Percy Jackson Seventh Son of Kronos' fanfiction, the plot could center around Percy being hunted by both the gods and the Titans. Since he's the seventh son of Kronos, he has a unique power that both sides want to either control or destroy. Percy has to go on a quest to find a way to neutralize this new aspect of his identity so he can live in peace. Along the way, he teams up with some unexpected allies, like a group of demigods who are also outcasts for various reasons.
Well, it could be about Percy having to deal with the conflict of being the son of two such different deities. Maybe he has powers from both Orion and Artemis. For example, he could have Orion's hunting skills combined with Artemis's connection to the moon. He might struggle to fit in with the normal demigods as his origin is so unique.