How could the worlds of Harry Potter and Alexander Anderson's story be merged in fanfiction?

One idea could be a crossover where Alexander Anderson, with his combat skills and religious fervor from his own universe, is transported to the Harry Potter world. He might initially be seen as a threat due to his extreme methods, but then he teams up with the Order of the Phoenix to fight against dark wizards who are dabbling in some form of dark magic that has religious connotations in his view.

If 'Harry Potter is Alexander Anderson fanfiction' were true, it would be a very odd situation. The 'Harry Potter' series is set in a world of wizards, witches, and magical creatures, with a focus on things like the fight against Voldemort. Alexander Anderson is from a different kind of story. If it were fanfiction, we might see characters like Harry Potter using abilities similar to Anderson's, which would completely change the nature of the 'Harry Potter' story. The whole Hogwarts system and the way magic is taught and used would likely be disrupted as elements from Anderson's story intruded. It would be a very different 'Harry Potter' experience, and probably not one that most fans of the original would welcome.

No way. The 'Harry Potter' series has been carefully crafted with its own story arcs, character developments, and world - building. Alexander Anderson belongs to a different fictional realm. A fanfiction implies a derivative work based on an existing one, but these two are so disparate that it doesn't make sense to consider 'Harry Potter' as a fanfiction of Alexander Anderson. They have different tones, different target audiences, and different overarching stories.

Maybe Naruto, as Anderson, is part of an organization that fights against supernatural threats. He uses his Uzumaki bloodline abilities in a new and unique way. For instance, his ability to heal quickly could be seen as a form of Anderson's regenerative powers. And he would be constantly at odds with those who oppose his extreme methods of dealing with enemies, just like Anderson in his own story.

The settings can be merged by creating a sort of interdimensional hub. For example, Hogwarts could have a secret chamber that leads to Smallville. And from Smallville, there could be a strange rift that opens to the Devil May Cry world. In this way, characters can move between the settings. Another way could be through a magical spell in the Harry Potter world that misfires and creates a portal to both Smallville and the Devil May Cry world.

Well, you could start by having a portal or some sort of magical accident that links the two settings. For example, a misfired spell in Hogwarts could open a gateway to Nerima. Then, the characters from both worlds would start to interact. The Hogwarts students might be fascinated by the strange martial arts and curses in Ranma 1/2, while the Ranma 1/2 characters could be amazed by magic wands and spells.

The magic system in Harry Potter can be blended with Grimm's use of magic in its tales. In Grimm, magic is often more wild and unpredictable. In a fanfiction, Hogwarts could start to experience a shift in its magic due to an influx of Grimm - like magic. Spells could start to misfire in strange ways, like turning into animals from Grimm tales instead of the intended effect. This would force the students and teachers to adapt to this new, more chaotic magic, while also trying to keep Hogwarts safe from the threats that come with it, both from Voldemort's side and from the Grimm - inspired magical anomalies.

A possible way for their worlds to merge in fanfiction is through a reincarnation plot. What if some of the Naruto characters were reincarnated in the Highschool DxD world? Naruto himself could be reborn as a devil or an angel. This would completely change the power balance and relationships in the Highschool DxD world. Rias would have to deal with this new Naruto, who still has his ninja spirit but now has to adapt to the rules and powers of the new world.

One way their worlds could collide is through a magical portal. Maybe in a fanfiction, a powerful wizard in the Harry Potter universe accidentally creates a portal that leads to Middle - earth where Aragorn is. And Aragorn, being a brave and curious leader, steps through the portal to explore the strange new world of magic and wizards.

Hermione might be a strong candidate. She is extremely intelligent and has a thirst for knowledge. In a merged world, she would quickly study the new elements from the God of War universe. She could combine her magic knowledge with the new combat or magical concepts from God of War. For example, she might figure out a way to use the power of the Greek gods in the wizarding world, making her a very powerful and unpredictable force.