Batman and Sherlock Crossover Fanfiction: What Are Some Interesting Plots?

Another plot could be Sherlock and his love interest solving cases together while their relationship develops. They might use their combined skills, with Sherlock's deductive reasoning and the other's unique abilities, and in the process, their love deepens as they face dangerous situations side by side.

One interesting plot could be where the Torchwood team investigates a series of strange murders that seem to have a supernatural element, and they enlist Sherlock's help. Sherlock, with his deductive skills, starts to piece together clues that the Torchwood team might have overlooked. For example, he could notice a pattern in the victims' backgrounds that leads to a bigger conspiracy.

One interesting plot could be the sons teaming up to solve a mystery that Batman himself has trouble with. They might use their unique skillsets, which are different from Batman's, to approach the case from a new angle.

One idea could be that Merlin uses his magic to help Sherlock solve a case that seems to have supernatural elements. For example, a series of murders where the victims all seem to have died from some unexplainable force. Merlin's ability to sense magic and his knowledge of the old ways could give Sherlock new perspectives on the case.

One idea could be to have Sherlock investigate a mystery related to a historical event in Hetalia. For example, he could look into the disappearance of a valuable artifact during a time of war in one of the Hetalia countries. Another idea is to have the Hetalia characters assist Sherlock in solving a case in London. Maybe Italy could provide some unexpected insights with his unique perspective. Also, a crossover could involve Sherlock being transported to the Hetalia world and having to adapt to its strange rules and cultures while still using his detective skills to solve local mysteries.

Another idea is that Sherlock and Tony Stark team up. They are both highly intelligent. Tony could provide Sherlock with high - tech gadgets to aid in his investigations, while Sherlock could help Tony with his personal problems. For example, Sherlock might figure out who is trying to steal Stark Industries' secrets by observing the small details in the company's operations.

One of the most intriguing plots could be a serial killer case that spans across both universes. Maybe the killer uses the intelligence - gathering techniques from Criminal Minds and the deductive reasoning of Sherlock. For example, the killer leaves clues that can only be deciphered by someone with Sherlock's skills, but the motives are related to the psychological profiling done in Criminal Minds. This creates a really interesting dynamic where the characters from both shows have to work together to catch the killer.

One interesting plot could be Catwoman in the 'Batman Beyond' universe stealing a high - tech item that has the potential to disrupt the new Gotham's power grid. Batman Beyond then has to track her down, leading to a series of high - speed chases across the city's skyline. Another plot might involve Catwoman forming an unlikely alliance with Batman Beyond to take down a new criminal organization that is using advanced technology for illegal activities. And perhaps a plot where Catwoman discovers a secret about Batman Beyond's identity and uses it to her advantage in a heist.

One interesting plot could be that Batman and Lois Lane team up to solve a mystery that involves both Gotham and Metropolis. Maybe a new villain is creating chaos in both cities, and their combined skills are needed to stop it. Batman's detective skills and Lois's journalistic instincts would make for an exciting adventure.

One interesting plot could be Batman teaching Wally about stealth and detective work. Batman's dark and methodical approach would contrast with Wally's more energetic and impulsive nature.