One possible plot could be that Daniel Jackson discovers a magical portal while on one of his Stargate missions. He steps through it and finds himself in the world of Harry Potter. He then uses his knowledge of different cultures and languages from his Stargate experiences to help Harry Potter and his friends solve some of the mysteries in the wizarding world, like understanding an ancient magical text that no one in Hogwarts has been able to decipher.
Well, it could start with Daniel Jackson being magically transported to Hogwarts. He is initially confused but quickly realizes the potential of magic. He teams up with Harry Potter and they find that there are some similarities between the ancient magic in Hogwarts and the technology they have in the Stargate world. They start to investigate a common threat that seems to be affecting both worlds. This threat could be a dark wizard who has somehow found a way to use Stargate technology for evil purposes, and together they have to stop him using a combination of magic and technology.
Maybe the plot could involve a spell gone wrong in the Harry Potter universe that somehow links it to the world of Stargate. Harry Potter and his friends end up in Daniel Jackson's world. Daniel then has to teach them about the technology and different civilizations in his world, while Harry and his friends introduce Daniel to magic. Together, they have to find a way to reverse the spell and return everyone to their respective worlds.
Well, it could be an interesting concept in a way. Fanfiction often takes characters from different sources and puts them together in new and unexpected scenarios. However, since Harry Potter and Daniel Jackson are so different in terms of their original stories - one being about magic and the other about space exploration and ancient civilizations - it would be a very challenging concept to execute well.
A possible plot could be that a powerful Godlingg artifact is discovered that has the potential to destroy both the wizarding world of Harry Potter and the demigod world of Percy Jackson. Harry and Percy, along with their friends, must race against time to find and secure the artifact before it falls into the wrong hands.
Well, if Harry Potter is reborn as Percy Jackson, perhaps his relationship with the gods would be unique. Since he has experience with a different kind of magic system, he might question the Greek gods' ways more. He could try to introduce some of the more organized aspects of the wizarding world, like the Ministry of Magic's rule - making, to the rather chaotic world of the demigods.
Well, perhaps Harry Potter could be a wizard - pirate. He might use his magic to navigate the dangerous seas of the One Piece world. Gol D. Roger could have some connection to the wizarding world, like having a magic item on his ship. Maybe Harry would be on a quest to find the One Piece using his magic skills, while also facing off against dark wizards who are also after the treasure.
A possible plot could be centered around a prophecy that involves both Harry Potter and Ruby Rose. In this fanfiction, the wizarding world and Ruby Rose's world are actually linked in a way that no one knew before. The prophecy states that they must work together to prevent a great evil from destroying both worlds. Harry, with his experience in dealing with dark magic, and Ruby Rose, with her tenacity and unique abilities, start on a journey. They face many challenges, from magical creatures in Harry's world to high - tech threats in Ruby Rose's world. As they progress, they not only grow as individuals but also form a deep friendship that is crucial in their fight against the common foe.
One interesting plot could be that the magical worlds of Hogwarts and Camp Half - Blood somehow merge. Harry Potter and his friends find themselves in the world of Percy Jackson, facing off against mythological creatures they've never seen before. Maybe they have to work together to stop a common enemy that threatens both their worlds, like an ancient dark magic that is starting to corrupt the gods and the wizards alike.
Perhaps Percy gets a strange magical summons to Hogwarts, and there he meets Harry. They figure out they're cousins. They then start to explore their family history together. Along the way, they realize that an ancient evil has been targeting their family for generations and they must use both magic and demigod powers to stop it. They also have to deal with the cultural differences between the two worlds, like Percy being used to the more physical and outdoorsy battles while Harry is more accustomed to spell - casting duels.
In a 'Percy Jackson adopts Harry Potter' fanfic, the plot could start with Percy being on some kind of mission that crosses into the wizarding world. He stumbles upon Harry, who is alone and vulnerable. Percy decides to adopt Harry because he sees the same kind of determination and courage in Harry that he has. As they journey together, they exchange knowledge. Percy teaches Harry about Greek mythology and combat skills, while Harry shares his knowledge of magic. They form a bond that helps them face threats from both magical and mythological creatures, and they might even team up to fight against a common enemy that is a threat to both their worlds.
The plot could involve a situation where a new form of dark magic is unleashed in the wizarding world, which spreads like wildfire and causes destruction similar to 911. The Ministry of Magic is caught off - guard. Hermione, with her vast knowledge, starts researching a way to counter this magic. Meanwhile, Ron and Harry lead the effort to protect the civilians. They set up shelters in places like the Room of Requirement and use Patronuses to guide people to safety. As they dig deeper, they discover that this dark magic was a planned attack by a long - hidden dark wizard group who wants to take over the wizarding world.
One possible interesting plot could be that the magic from the Harry Potter world starts to seep into the Percy Jackson universe, causing chaos among the demigods. For example, Hogwarts could suddenly appear in the middle of Camp Half - Blood. The demigods, not used to this type of magic, would be both curious and threatened. Meanwhile, Harry and his friends could get accidentally transported to the Percy Jackson world and have to team up with the demigods to figure out how to send Hogwarts back and restore the balance between the two magical systems.