What are some interesting 'Harry Potter Detective Conan fanfiction' ideas?

One idea could be that Harry Potter travels to the world of Detective Conan. He could use his magic to help Conan solve some cases that seem impossible with just normal detective skills. For example, he might use a spell to reveal hidden clues or to track down a suspect who has magically disappeared.

A more complex plot could be that there is a secret connection between the two worlds. A powerful artifact from the wizarding world has been stolen and ends up in the hands of a criminal in Detective Conan's world. This leads to a race between the wizards and Conan's team to retrieve it. Along the way, they discover that there are ancient prophecies that tie the two worlds together and that the fate of both depends on getting the artifact back. This could involve a lot of character interactions, like Hermione and Ran becoming friends and sharing their knowledge, or Ron and Conan bonding over their love for food while also trying to solve the mystery.

One idea could be creating an OC who is a master of disguise, like Conan, but with a unique backstory. Maybe they are from a different country and have their own reasons for getting involved in the detective work in Japan. Another idea is an OC that has a special gadget - something that hasn't been seen in the original series yet, like a device that can analyze poisons instantly. And a third idea could be an OC who is a childhood friend of Shinichi's that has some hidden talents related to solving mysteries that come to light after his transformation into Conan.

One idea could be a crossover with Sherlock Holmes. Conan could meet Holmes in London and they could solve a complex mystery together. Holmes' deductive skills and Conan's modern knowledge would make for an exciting combination.

Well, you could have an OC that is a childhood friend of Shinichi who has a photographic memory. This OC could recall small details from their past that end up being crucial in solving current cases. Or perhaps an OC who is an expert in a very specific field, like ancient languages, and Conan has to rely on this OC's knowledge when a case involves old inscriptions or manuscripts. Also, an OC who has a connection to the Black Organization, either as a former member trying to reform or someone unknowingly involved in their plans, could add a lot of drama to the fanfiction.

One idea could be a fanfic where Conan has to solve a mystery within a virtual reality game world. Another could be a story where he teams up with a new character who has a unique detective skill that complements his own. Maybe a fanfic about Conan traveling back in time to solve a mystery related to his parents' past.

One idea could be a story where Conan and Kid Lemon team up to solve a mystery that involves a rare and precious gem. Another could be a scenario where Kid Lemon is wrongly accused of a crime, and Conan has to use his detective skills to prove his innocence. Maybe they could also be in a situation where they have to work together to stop a villain who is targeting both of them.

Another idea is that they are at a masquerade ball. Shinichi is disguised as someone else, but Ran still senses his presence. They dance together and as the music reaches a crescendo, Shinichi reveals himself and kisses Ran. This would add an element of mystery and glamour to the story, as they are surrounded by other masked guests who are oblivious to their true identities.

One idea could be to write a fan fiction where Conan has to solve a mystery in an ancient, haunted castle. The castle could have secret passages and hidden rooms filled with clues that lead to a long - lost treasure. Another idea is to create a story where Conan teams up with a new character who has a unique skill, like being able to communicate with animals, which helps them solve the case in a different way. You could also write a fan fiction that takes place in a different time period, like the future, and Conan has to adapt his detective skills to new technologies.

One interesting idea in 'Harry Potter' fanfiction is the concept of alternate universes. For example, a fanfic might explore what would happen if Harry was sorted into Slytherin instead of Gryffindor. This could lead to a completely different set of relationships and storylines. Another idea could be time - travel fanfics where characters go back in time to change certain events in the wizarding world's history. It adds a whole new layer of complexity and intrigue to the original story.