What are some interesting ideas for a Martin Mystery crossover fanfiction?

One idea could be to cross Martin Mystery with another mystery - solving show like Scooby - Doo. Picture Martin and his team joining forces with the Mystery Inc. gang to solve a supernatural mystery that spans across both their universes.

A cool concept could be a possession story. A powerful supernatural entity tries to possess members of both groups. Scooby Doo and the Mystery Skulls have to find a way to stop it before it's too late. This would bring out different reactions from the characters. Scooby and Shaggy might be more panicked, while the Mystery Skulls, with their prior experience, would be more strategic in their approach.

One interesting plot could be that an ancient artifact has been stolen. The Totally Spies are on the case because it has some high - tech implications, while Martin Mystery is interested because it has a dark and mysterious past. They both follow different leads that eventually converge at an old, abandoned castle. There, they have to fight off various traps and enemies, both normal and supernatural, to get to the artifact and stop the villain who plans to use it to gain ultimate power.

There might be a fan fiction where Martin travels back in time to solve a mystery that is somehow related to his family's past. This could add a whole new layer of depth to his character. For example, he could discover secrets about his ancestors that give him new powers or insights to solve present - day mysteries.

There are fanfics that might involve Martin Mystery and his team facing new and unknown creatures. For example, a story where they encounter a sentient plant species that can manipulate minds. Also, some fanfics could be comical, such as Martin accidentally swapping bodies with one of the villains and having to deal with the situation while trying to keep his identity a secret. Additionally, there could be a fanfic that takes place in the future, showing an older Martin still dealing with the supernatural.

First, you need to decide which other universe you want to cross it with. Once you've chosen, study both the Martin Mystery world and the other world's lore, characters, and settings. For example, if it's with 'Ben 10', understand how the Omnitrix works and the types of aliens Ben can transform into, as well as Martin's gadgets and how his team operates.

One interesting idea could be a crossover with "Moana". Elsa's ice powers and Moana's connection to the ocean could create a really cool dynamic. Maybe Elsa accidentally freezes part of Moana's ocean and they have to work together to fix it. Another could be with "Tangled". Rapunzel's long hair and her adventurous spirit combined with Elsa and Anna's journey in Frozen 2 would be exciting. Rapunzel could use her hair to help them climb mountains or cross chasms. A third idea is a crossover with "Beauty and the Beast". Belle's love for books and knowledge could help Elsa understand more about her powers and the history of magic in the Frozen world.

A Rambo crossover fanfiction could involve him crossing over into the Star Wars universe. Rambo's guerilla warfare tactics could be interesting in a galaxy far, far away. Maybe he helps the Rebel Alliance in a ground - based battle against the Empire. Or a crossover with the Predator series. Rambo would be a worthy opponent for the Predator, and the fight between them in the jungle could be epic. Also, a Rambo and John Wick crossover would be intense, two highly skilled fighters on the same side or perhaps initially at odds.

One idea could be a crossover with a modern military setting. The Decepticons could be trying to steal advanced military technology. Another is a crossover with a post - apocalyptic world where they are competing with other factions for resources. A third could be a crossover with a magical realm, with the Decepticons trying to harness the magic for their own evil purposes.

One idea could be a crossover with Naruto. Kakuzu could be sent to the Naruto universe and form an unlikely alliance with a shinobi village to fight a common enemy, like the Akatsuki from his own world turned rogue in the new universe. This would create a lot of interesting character dynamics and battles.