One possible plot could be that Harry Potter grows up in Mordor. Sauron might train Harry in dark magic, but Harry could have an internal struggle as he has an inherent sense of good from his parents. He might try to find a way to use the power he's learning for good, against Sauron's wishes.
In a 'Harry Potter raised by Sauron' fanfiction, the story could start with Sauron finding baby Harry. He decides to raise Harry as his own, seeing potential in him. Harry would be taught Sauron's ways, but his connection to the magic of the Harry Potter universe might start to show. Maybe he can communicate with magical creatures that are different from those in Mordor. As he gets older, he might meet other wizards who try to persuade him to abandon Sauron, leading to a complex battle of loyalties and self - discovery.
If Harry was raised by Sauron, his character development would be complex. At first, he would be molded by Sauron's teachings. He would be confident in using dark magic and have a certain arrogance. However, as he interacts with the wizarding world or discovers his past, things would change. He could start to feel empathy for those who oppose Sauron. His magic might transform from being purely dark to something more nuanced, as he tries to reconcile his upbringing with his true nature. He might even become a sort of anti - hero, not fully on the side of good or bad, but trying to make things right in his own way.
One possible plot could be that Sauron somehow manages to enter the wizarding world. Maybe through a powerful dark magic spell that links the two universes. Harry, being the hero, senses the new and greater evil. He then has to figure out how to defeat Sauron, which is much more difficult than any foe he has faced before. He might have to learn about the power of the One Ring and how to destroy it, all while protecting Hogwarts and the wizarding world from Sauron's dark minions.
In a 'Harry becomes Sauron' fanfiction, it might start with Harry being disillusioned with the wizarding world. He discovers some ancient magic that has a connection to Sauron's power. As he delves deeper, he becomes influenced by Sauron's will. He could then try to reshape the wizarding world in his image, which is now a dark and tyrannical one. He might even try to bring Middle - earth and the wizarding world together under his rule.
In such a fanfiction, perhaps Wolverine's rough and protective nature would greatly influence Harry. Harry might grow up with a fierce sense of self - defense and loyalty. He could be trained in combat skills from a young age, making him a very different kind of wizard. Maybe he'd use his magic in more physical and aggressive ways compared to the traditional Hogwarts students.
In a 'Harry Potter raised in Ireland' fanfic, perhaps he'd grow up with a strong connection to Irish magic. He might learn unique spells only known in Ireland. Maybe he'd attend a local Irish wizarding school first before Hogwarts, and make friends with Irish magical creatures.
In a 'Harry Potter raised as a Warrior' fanfiction, the story could start with Harry being found by a group of Warriors. They teach him their code of honor and how to fight. As he grows up, he becomes an expert in their ways. When he enters Hogwarts, he stands out because of his unique combat - like approach to things. He might even form his own group of friends who are interested in his Warrior - style, and together they could face the challenges of the wizarding world in a different way compared to the original story. For example, instead of relying solely on spells, he might use his physical combat skills during duels.
In this fanfiction, the ghosts might protect Harry in a way that living people can't. They could give him advice based on their long years of observing Hogwarts. For example, they might tell him secrets about the founders of Hogwarts that help him in his adventures. Also, Harry's personality could be influenced by the ghosts' ethereal and somewhat detached nature, making him more introspective.
The plot could involve Harry growing up in a world where the boundaries between Greek and wizarding magic are blurred. Hecate could introduce him to magical creatures from Greek mythology. He might also have to face different kinds of dark forces that are more related to the ancient evils that Hecate has been fighting for centuries. This would make Harry a very different kind of wizard, one with a more diverse magical knowledge and power base.
Well, it could be really interesting. Maybe Sasuke would teach Harry some ninja skills. Harry might grow up with a different kind of magic, a blend of wizardry and ninjutsu. He could use his wand in a more combat - like way inspired by Sasuke's fighting style.
Well, perhaps Harry would grow up with a very different kind of magic. Circe was known for her potions and transformation magic. So Harry might be an expert in those areas from a young age. He could have a more wild and unorthodox upbringing compared to his life with the Dursleys. Maybe he'd be more in tune with nature and magical creatures that Circe might have around her lair.