Another idea could be that Peter Parker accidentally stumbles upon Camp Half - Blood while on a school trip. Percy has to keep Peter's identity as Spider - Man a secret from the other demigods, and they end up having to work together to solve a mystery that involves both the world of the demigods and the world of superheroes. This could lead to some really fun interactions, like the demigods being amazed by Peter's powers and Peter being in awe of the magic at Camp Half - Blood.
One interesting crossover could be a scenario where Percy Jackson's water powers are used to help Peter Parker during a flood caused by some super - villain in New York. Maybe Percy uses his control over water to rescue civilians while Spider - Man swings around saving those in more precarious positions.
In some fanfictions, they might team up to fight a common enemy that has ties to both their worlds. For example, a mythological creature that has been unleashed in New York by some mad scientist. Percy brings his knowledge of Greek mythology and his combat skills, and Peter brings his spider - sense and acrobatic fighting style. They could learn from each other, like Peter learning about ancient magic from Percy, and Percy learning about modern technology from Peter.
There's a fanfic called 'Mythical Webs' which is really interesting. In this story, Percy's demigod powers and Peter's spider - powers interact in unexpected ways. It dives deep into how their different personalities would work together in various situations, and it's full of action and a bit of humor too. The character development is quite good as they learn from each other's strengths and weaknesses.
One interesting crossover could be the combination of the demigod powers from Percy Jackson with the vampire and witch powers in The Originals. For example, a story could have a demigod team up with the Mikaelson family to fight a common enemy that threatens both the world of Greek mythology and the supernatural world of The Originals. This would bring a whole new dynamic as the demigod's abilities like controlling water or having super strength would interact with the vampires' speed and the witches' magic.
One interesting crossover could be a battle scenario where Goku's martial arts skills are pitted against Percy's water - based powers. For example, Goku might use his speed to dodge Percy's water attacks, while Percy could use his strategic thinking to counter Goku's energy blasts. Another could be a story where they have to team up to face a common enemy, like a powerful god from both of their universes who has gone rogue. They would have to learn to combine their powers and overcome their differences in fighting styles and personalities.
One interesting crossover could be the demigods from Percy Jackson meeting the vampires in Twilight. Maybe they would team up to fight a common enemy, like a new type of monster that combines the powers of Greek mythology and the supernatural elements of Twilight. For example, a creature that can turn into a mist like a vampire but also has the ability to control the elements like a demigod.
One interesting crossover could be the characters from Percy Jackson ending up in Middle - earth from The Hobbit. For example, Percy using his water powers in the rivers of Middle - earth. It would be a cool way to see how his abilities interact with the new environment.
One interesting crossover could be the demigods from Percy Jackson getting involved in an NCIS case. Maybe they are suspects at first because of their strange powers, but then end up helping the NCIS team solve a mystery related to some ancient artifact with magical properties.
One interesting crossover could be Percy using his water powers to navigate through the flooded areas of Jurassic Park. Maybe he helps the survivors by creating water barriers to keep the dinosaurs at bay. Another idea is that the demigods from Percy Jackson's world have to face off against the dinosaurs in a special quest. It would be really cool to see how they'd use their powers against such huge and powerful beasts.
One interesting crossover could be Percy's powers interacting with the dark and twisted world of Bloodborne. For example, his ability to control water might have unique effects in the blood - soaked streets of Yharnam. Maybe he could use water to cleanse some of the corrupted areas or fight against the grotesque beasts in a different way than the hunters in Bloodborne do.
One interesting crossover could be the powers of the demigods in Percy Jackson combined with the high - tech abilities of the Avengers. For example, Percy's water - controlling powers could be used to put out fires during an Avengers - level battle in a city. Or Annabeth's strategic mind could help the Avengers plan better attacks against a common enemy.
One interesting crossover could be the combination of Percy's water - based powers with some of the more aquatic - related SCP entities. For example, if Percy were to encounter an SCP that is a powerful water - based creature, it would create a really cool dynamic. Maybe he'd have to use his skills to either control or defeat it.