Yes, there are likely some fanfics out there that blend the two. Some fans might be intrigued by the idea of Harry Potter characters exploring the lost city of Atlantis, with its own unique magic and secrets. It could involve Harry and his friends on a quest in Atlantis, facing new challenges and perhaps even learning new types of magic.
One common theme is the exploration of ancient magic. Since Atlantis is often associated with powerful and mysterious magic, in fanfiction it can be combined with the known magic in Harry Potter. Another theme is adventure. Characters usually embark on a journey to Atlantis, facing various obstacles along the way.
Yes, there are some interesting 'Harry Potter Atlantis fanfiction' works. You can start by looking on popular fanfiction websites like FanFiction.net or Archive of Our Own. Some might combine the magic of the Harry Potter world with the mystery and allure of Atlantis in really creative ways, like having Harry and his friends discover Atlantis during a magical adventure.
It could be about a unique crossover where Harry Potter somehow becomes related to the Prince of Atlantis. Maybe it involves Harry's magic in the underwater world of Atlantis, or a quest that combines the magical elements of the Potterverse with the mythical and underwater aspects of Atlantis.
Well, Harry could be really confused at first. Ouran is a very different world from Hogwarts. He might be shocked by the opulence of Ouran Academy and the strange club system there. Maybe he'd try to find a way to fit in while still being true to his wizard self.
Maybe Harry discovers he has some hidden connection to Atlantis. He could be magically transported there and due to his powerful magic and heroic nature, he ends up becoming the king. He then has to deal with Atlantis's internal politics and protect it from external threats.
One possibility is that Harry discovers a hidden magical connection between Hogwarts and Atlantis. Maybe he is magically transported there and through his unique powers from Hogwarts, he begins to assert his influence. For example, he could use his knowledge of spells to solve problems in Atlantis that the local wizards or mages couldn't. Another aspect could be that he uncovers a dark secret in Atlantis related to the Dark Arts, and he has to use his Gryffindor courage to face it and in the process, becomes a respected figure and eventually the ruler.
In a fanfiction where Harry Potter is raised in Atlantis, his relationships would be quite different. He would make friends among the Atlanteans, who could have their own unique cultures and appearances. His relationship with Hogwarts would be complicated. He might not feel as attached to it as he did in the original story, or he could bring Atlantis - influenced ideas to Hogwarts, creating a new kind of magic there.
In such a fanfiction, Harry might use his magic to explore the lost city. He could discover new magical creatures or spells that were lost with Atlantis. Maybe he'd face some challenges from ancient magic defenses there.
For the Atlantis side, there could be Atlantean royalty, like a princess or a group of elders. There might also be Atlantean mages or warriors. And don't forget about the mer - people. They could play a role, either as allies or antagonists. Maybe there's a mermaid who falls in love with Harry and helps him understand the ways of Atlantis.