One great 'Percy Jackson x Harry Potter' fanfic is 'The Son of the Sea and the Boy Who Lived'. It combines the two universes really well. The characters interact in interesting ways, like Percy using his water powers in Hogwarts. Another one is 'Crossing Realms' which has an exciting plot where the two heroes have to team up to fight a common enemy that threatens both their worlds.
The settings are different. Harry Potter is set mainly in the UK, at Hogwarts School of Witchcraft and Wizardry and other wizarding locations. Percy Jackson is set in modern - day USA, with a lot of action taking place at Camp Half - Blood. Also, the magic systems vary. In Harry Potter, there are spells, potions, and magic wands. In Percy Jackson, the demigods have powers related to their godly parentage like Percy can control water because his father is Poseidon. So they are clearly not related in a fanfiction way.
One interesting crossover could be a magical quest where the demigods from Percy Jackson's world team up with the wizards from Harry Potter. For example, they might have to face a common enemy that threatens both the magical and the mythological realms. Maybe they have to find a powerful artifact that has the potential to disrupt the balance of both worlds.
The character interactions are very unique. The female Percy Jackson character usually has a strong personality, which contrasts and complements the personalities of the Harry Potter characters. Her boldness and directness might be different from the more reserved or rule - following nature of some Hogwarts students. This creates a lot of tension, friendship, and growth opportunities in the story as they all learn from each other.
Common themes in this type of fanfiction can be quite diverse. There's often the theme of friendship evolving into something more, especially in a yaoi - inspired relationship. The two characters from different series might start as curious about each other's worlds and then gradually develop deeper emotional and romantic connections. Another theme could be the power dynamics between them. Given that both Harry and Percy have their own strengths and powers, the fanfiction may explore how these play out in their relationship, whether it's one character protecting the other or them working together in a more equal way.
Definitely Harry Potter and Percy Jackson themselves. They are the main characters of their respective series, so it's natural for them to be popular in crossovers. Hermione from Harry Potter is also quite popular as she can bring her intelligence and magic skills to the crossover scenarios.
Well, in some fanfictions, they might have to navigate through each other's worlds. For example, Harry could find himself in Camp Half - Blood and have to learn the ways of the demigods while Percy might end up at Hogwarts and try to figure out how to use a wand. There could also be a story where their friends interact, like Ron and Grover becoming friends and causing all sorts of comical situations.
One great fem Percy Jackson x Harry Potter fanfiction is 'The Cross - Over Quest'. It has an interesting plot where the female Percy Jackson character finds herself in the wizarding world of Harry Potter. The author does a wonderful job of combining the two universes, with Percy's demigod powers creating unique situations in Hogwarts.
One interesting 'Harry Potter x Percy Jackson' slash fanfiction could be 'Crossing Realms of Magic'. In this fic, the authors often explore how the magic systems of both universes interact when Harry and Percy meet. Another might be 'Allies in a New World' which focuses on their friendship turning into something more as they face common threats that span across the wizarding world and the demigod realm.
There's also 'The Demigod at Hogwarts'. In this fanfic, the female Percy Jackson character's journey at Hogwarts is filled with adventure. It's really exciting to see how she uses her demigod powers in a world full of wizards and witches, and how she forms new friendships and rivalries among the Hogwarts students.