One possibility is that Voldemort somehow gets wind of the powerful magic in Moana's world and tries to take it for himself. Moana and Harry would then have to team up to stop him. Moana could use her knowledge of the ocean and her ability to navigate through difficult situations, while Harry uses his skills in magic. The spells in the Harry Potter world might have different effects in Moana's world, and they'd have to figure out how to use them to their advantage. Also, the different cultures represented in both stories would blend in a unique way, creating a whole new world of magic and adventure in the fanfiction.
In a Harry Potter - Moana crossover fanfiction, the magical creatures in the Harry Potter world could interact with the spirits in Moana's world. For instance, a Hippogriff could fly over Moana's island and be seen as a strange new creature. Or the Maui's fishhook could have some sort of magical connection with a powerful wand in the Harry Potter universe. The characters' personalities would also make for great combinations. Hermione's intelligence and Moana's determination could lead them to solve some big mystery together that involves both their worlds.
It could be really interesting. Maybe Harry Potter uses his magic to help Moana on her journey. For example, he could use a spell to calm the rough seas she sometimes faces. Or Hermione could use her vast knowledge to figure out some of the mysteries in Moana's world that even she doesn't understand yet.
One possible plot could be that Moana's island is threatened by dark magic from the Harry Potter universe. Harry, Hermione, and Ron could be transported to Moana's world while on a mission to stop the spread of this dark magic. They would team up with Moana to use her knowledge of the ocean and the island's magic, along with their own wizarding skills, to fight off the dark forces. Maybe they'd have to face off against a wizard who has enchanted some of the sea monsters in Moana's world.
It could be really interesting. Imagine Moana in the wizarding world. She might be a powerful witch with her own unique magic related to the ocean. For example, she could use her connection to the sea to create powerful water - based spells. Maybe she'd attend Hogwarts and be sorted into Gryffindor for her bravery in facing the unknown on her ocean voyages in her own story.
Harry and Moana would likely become fast friends. Harry would be intrigued by Moana's courage and determination, while Moana would be fascinated by Harry's magic. They would share their stories and learn from each other.
Well, it could be about Harry Potter and his friends visiting a magical barbershop in Diagon Alley. The barbershop might be run by a wizard who uses magic scissors that can give different haircuts depending on the mood of the customer. For example, if a person is feeling adventurous, the scissors could give a wild and spiky haircut.
Moana would likely be curious about the magic in Harry Potter's world. She might ask Harry to show her some spells, like the levitation charm. Harry, on the other hand, would be impressed by Moana's courage and her ability to sail across the ocean. He could learn from her about determination. Hermione might study the culture of Moana's island, and Moana could learn about Hermione's love for books and knowledge.
Moana would be very curious about the wizards' magic. She'd probably ask Harry a lot of questions like how his wand works. Harry, on the other hand, would be amazed by Moana's connection to the ocean. He might be a bit envious of her natural ability to navigate the seas. Hermione would be eager to learn about Moana's island's history and magic, and she'd probably take notes. Ron would be more interested in the food in Moana's world.
It could be about Naruto somehow ending up in Moana's world. Maybe he uses his ninja skills to help Moana on her journey to save her island. For example, Naruto could use his shadow clone jutsu to do multiple tasks at once like helping to repair damaged parts of the island while Moana focuses on finding the heart of Te Fiti.
A possible crossover could involve the magic system of Harry Potter being combined with the Gem technology in Steven Universe. For example, Hermione could study how the Gems' powers work and try to find a scientific explanation for it. On the other hand, Pearl could be fascinated by the complex spells in the wizarding world. And perhaps Dumbledore and Garnet could have a deep conversation about leadership and protecting their respective worlds.
A Naruto and Harry Potter crossover with the Sharingan involved would bring a whole new dynamic. The Sharingan's powers of perception and the ability to copy techniques could be adapted in the magical realm. The fanfiction could explore how a ninja's training and skills would fare against the magic of the wizarding world. There could be a lot of cultural clashes as well. The ninjas' values and ways of life are quite different from those in the wizarding world, and this could lead to some really engaging story arcs where they learn from each other and grow.