What could be the plot of a 'Harry Potter Lost King' fanfiction?

Perhaps the lost king is a young wizard who was hidden away as a baby because of a dark prophecy. He has the potential to be a great and just ruler. His identity has been kept secret all these years. Harry Potter, being the hero he is, gets involved in the mystery when he notices some strange magical happenings that seem to be related to this lost king. As he digs deeper, he uncovers a web of secrets, spells, and hidden motives among different wizarding factions regarding this lost king.

It could be that Harry Potter finds himself in the world of the Lost Boys. Maybe he uses his magic to help them fight off some new dark force that threatens their home in Neverland. He might teach them some magic tricks in return for learning their survival skills in the wild of Neverland.

One possible plot could be that a character from the Harry Potter universe gets lost in the Winchester world. Maybe Harry himself accidentally uses some sort of magic that transports him to a place in the Winchester universe. He then has to figure out how to get back while dealing with the strange and often dangerous things in that world.

Well, it might be about Harry losing his glasses on an unknown island. Maybe he has to search for them while facing magical creatures and challenges specific to that island. It could also involve his friends helping him out, and in the process, they discover some long - lost secrets of the island.

Maybe in this fanfiction, the island is a place filled with illusions. Harry's lost glasses are not just ordinary glasses but hold some sort of key or magic. As he tries to find them, he discovers secrets about the island and its connection to his past. For example, the island might have been a place where a powerful wizard once hid something important, and Harry's glasses are somehow related to it. He has to use his wits and magic skills to overcome the illusions and find his glasses before it's too late.

A possible plot could involve Luna Lovegood. Luna has always been interested in strange and magical creatures. In the crossover, she somehow ends up in the world of Lost Girl. She quickly befriends Trick, the Blood King. Luna's unique perspective on magic and the unseen helps Trick deal with a problem in his court. Meanwhile, the other characters from both universes are drawn into their alliance, and they all have to face a powerful enemy that is trying to disrupt the balance between the wizarding world and the Fae world.

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.