What are some interesting plot ideas for Percy Jackson merman fanfiction?

One interesting plot could be Percy struggling to adapt to his new merman form. He might have to learn how to swim with a tail instead of legs, which could lead to some comical and challenging situations. For example, he could accidentally crash into coral reefs while trying to master his new swimming skills. Another plot could involve Percy trying to hide his merman identity from his friends at first, fearing their reaction. This could create a lot of tension and mystery in the story.

One plot idea could be Percy having to team up with Hera to rescue a group of demigods who have been captured by an ancient monster. Hera, despite her usual aloofness, realizes she needs Percy's unique skills.

One idea could be that the little merman discovers a hidden underwater kingdom full of magic and mystery. He could be on a quest to find a powerful artifact that can save his own kingdom from a dark force. Another plot could be a love story where he falls in love with a human who can also breathe underwater due to a special spell.

One idea could be Percy having to face a new threat underwater that only Poseidon can help him understand. Maybe a lost civilization that Poseidon once had a connection with is now causing trouble. Another could be Percy going on a quest to find a powerful artifact that was once Poseidon's but has been stolen, and Poseidon gives him special powers or guidance along the way.

One idea could be that Percy and Hermione meet during a magical event that crosses over the Greek mythology world and the wizarding world of Harry Potter. They team up to solve a mystery that involves both magic and ancient Greek curses.

One idea could be Percy having to team up with an Amazonian princess to rescue a group of half - bloods kidnapped by a new monster. They could face challenges like navigating through the Amazon jungle filled with magical traps.

One idea could be a story where Percy has to team up with a monster that has been wrongly accused. Maybe a centaur is framed for stealing a powerful artifact from Camp Half - Blood. Percy, being the hero he is, decides to help the centaur clear its name and in the process discovers a new threat to the demigod world that involves an ancient monster alliance.

How about a crossover with the Star Wars universe? Percy could be on a strange planet that has a connection to water in a way similar to the Force. He might meet Jedi and Sith and get caught in their power struggles. His ability to control water could be seen as a strange new 'power' in the Star Wars world. Another interesting plot would be a crossover with the Percy Jackson universe and the His Dark Materials series. The daemons could interact with the Greek gods' animal forms, and Percy would have to deal with the complex moral and political issues in both worlds.

Maybe Katara gets transported to Camp Half - Blood. She initially struggles to fit in but then she realizes she can use her water - bending skills in new ways with the help of Percy's understanding of water - related powers. They could then go on a quest together to find a way to send Katara back home, all while forming a strong friendship and learning from each other's cultures.

One idea could be Percy using his gaming skills to outwit monsters in the real world of the Percy Jackson universe. For example, he might use strategies from strategy games to plan attacks against a horde of mythical beasts. Another could be Percy getting trapped in a virtual world that has elements of both the gaming world and the Percy Jackson mythos, and he has to find his way out by solving puzzles based on Greek mythology.