What are some interesting plot ideas in Detective Conan and Harry Potter fanfiction?

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.

One idea could be that Harry Potter and Conan end up in the same magical - mystery world. Harry uses his magic skills while Conan uses his detective skills to solve a case that involves dark wizards and a powerful, mysterious artifact. Another idea is a crossover where the characters from Hogwarts visit Conan's world, and they all have to work together to figure out a series of strange disappearances that seem to be related to a new type of magic or potion.

Another plot could involve a detective in the series, perhaps a side character, who is pregnant and uses her unique situation to solve a case. For example, her pregnancy hormones might make her more perceptive in some ways or she could use the fact that people underestimate her because she's pregnant to her advantage in uncovering the truth.

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.

A great plot might be that there's a mystery surrounding a rare and valuable magical artifact. Kaito is interested in it for its magical significance, while Shinichi is on the case because it's related to a theft. They initially suspect each other but then realize they need to work together. They discover that a shadowy figure is using the artifact's legend to cover up a more sinister plot.

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.

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 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.

A great plot for a Potter Manor fanfiction could involve a mystery that surrounds the manor. For instance, strange noises at night lead Harry to uncover a long - forgotten chamber. It could also be about Harry restoring the manor to its former glory, perhaps with the help of Hermione's research on ancient magic used in the construction of such manors.