Well, it could be about Harry Potter discovering some hidden magical underwater kingdom. Maybe he has a special connection to the sea, like being able to communicate with sea creatures. He could then use this power to fight against dark forces that are threatening the sea world.
In this fanfiction, it could start with Harry feeling an unexplainable pull towards the sea. As he investigates, he finds out that he has a long - lost heritage related to the sea. He then embarks on a journey to claim his rightful place as the king of the sea. Along the way, he has to overcome many challenges, such as dealing with sea - witches who oppose his ascension and learning to control the powerful magic of the ocean.
Perhaps in this fanfiction, Harry Potter is named the king of the sea because he saves the sea from a great evil. It might involve him learning new spells and magic that are specific to the underwater environment. He could also form alliances with mermaids and other sea - based magical beings to rule the sea in a just way.
Harry Potter is the central character. There may be a wise old sea - turtle wizard who imparts important knowledge to Harry. Some sea - nymphs could be characters that either help or hinder Harry. Neville could also be part of the story, perhaps using his plant - based magic in a new way underwater to help Harry in his quest to be the king of the sea.
There might be a fanfiction where a character is both a Hogwarts student and has a secret identity as a sea king's heir. This character could struggle with balancing their magical studies at Hogwarts with their new - found responsibilities in the underwater kingdom. They might have to face challenges like preventing a war between the underwater and wizarding worlds.
Fanfiction.net is also a good place. There are numerous Harry Potter fanfictions there, and if you search specifically for 'Harry Potter Sea King' with some patience, you might come across some interesting pieces. However, the quality can vary greatly, so you may need to read a few to find the really good ones.
Well, it could be about Harry Potter somehow becoming the king in the North. Maybe he uses his magic in a new way to gain this position, ruling over a magical kingdom there.
It could be about Harry Potter achieving a supreme status, like a 'king of kings'. Maybe he unites the wizarding world in a way no one has before, bringing peace and new magical laws.
One possible plot could be that Harry, as the 'King of Hogwarts', uses his new - found status to reform the school's rules. He could make the houses work together more closely, perhaps by creating new inter - house competitions that focus on cooperation rather than competition. For example, a magical scavenger hunt where students from all houses must team up to find hidden magical artifacts around Hogwarts and its grounds.
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.
Well, perhaps in this fanfic, Harry Potter discovers some long - lost connection to Russia. Maybe he's the heir to a powerful Russian wizarding family. He could use his magic in a unique way influenced by Russian magic traditions, like using spells related to Russian folklore creatures.
Well, it might be about Harry Potter using his magic in a street - level setting, like maybe he's using magic to solve the problems of the common people on the streets. He could be like a secret hero among the street folk.
One possible plot is that Voldemort also has an interest in Atlantis. Harry, as the King of Atlantis, has to not only protect his new kingdom but also prevent Voldemort from getting his hands on Atlantean power sources. This could lead to epic battles underwater, with Harry using his Patronus and other spells against Voldemort's dark magic, all while trying to uphold the traditions and values of Atlantis.