One plot idea could be that female Percy Jackson discovers her true feelings for another female demigod while on a quest. Maybe they start off as rivals but gradually realize their mutual attraction as they face various challenges together. For example, they might be competing for the same magical artifact at first, but as they battle monsters side by side, they see each other in a new light.
Another idea is that female Percy Jackson is part of a secret group of lesbian demigods within Camp Half - Blood. They support each other and have their own adventures that are different from the typical ones at the camp. They might be trying to prove themselves to the other campers who don't fully understand or accept their relationships, while also dealing with the usual threats from the mythological world.
Perhaps female Percy Jackson is in a relationship with a female character from a different pantheon. This could create a lot of interesting dynamics as they come from different mythological backgrounds. They could struggle to understand each other's powers and cultures at first, but then find common ground in their shared experiences as female heroes in a male - dominated world of gods and monsters.
One plot idea could be that the female Percy Jackson has a psychic connection with Kronos' past self. She starts seeing visions of his rise and fall in the Titanomachy. Another could be that Kronos, in some way, tries to use the female Percy as a tool to regain his power but she manages to turn the tables and uses his own schemes against him. Maybe she discovers a long - lost secret about Kronos that could either save or destroy the world of the demigods.
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 plot idea could be Percy using his shapeshifting ability to infiltrate the lair of a powerful enemy. He could transform into a small animal like a mouse to get past defenses and then change into a more formidable form to fight. Another could be Percy struggling to control his shapeshifting, accidentally changing forms at inconvenient times, like during a school exam or a tense conversation with his friends.
One idea could be being reborn as a new camper at Camp Half - Blood. You could discover new powers related to water, like being able to create ice sculptures with just a thought, which is a unique take on Percy's water - based powers. Another plot could involve being reborn as a child of a minor god, like Hecate. You'd then have to struggle to prove your worth among the children of the major gods. And perhaps a plot where you're reborn with memories of the future, and you have to use that knowledge to prevent a great disaster at Camp Half - Blood.
One idea could be Percy and his friends getting trapped in a virtual game world that's a twisted version of their own. They have to use their demigod skills to defeat the digital monsters and find a way out.
Maybe Percy is sent on a quest to Atlantis because there are rumors of a traitor among the Atlanteans who plans to side with the Titans. Percy has to navigate the complex political situation in Atlantis and figure out who the traitor is before it's too late. He also has to deal with the Atlantean magic which is different from what he's used to.
One idea could be that Percy discovers a hidden realm within the world of the Wanderer. This realm has its own set of rules and challenges that he has to navigate. Maybe he meets new demigods there who have been lost for centuries.
One idea could be Percy having to make a deal with a minor underworld god to save Annabeth from a new and strange curse that's slowly draining her life force. He has to complete a series of tasks in the underworld that test his loyalty and courage more than ever before.
Well, perhaps the shield was once owned by a powerful demigod from the past. In the fanfiction, Percy starts having strange dreams about this demigod and the shield's true origin. As he investigates, he realizes that the shield holds the key to defeating a new, emerging evil that threatens not just Camp Half - Blood, but the entire world of gods and mortals. So, he has to figure out how to unlock the shield's full potential.
Here's an idea. Emma could be a mortal who accidentally stumbles upon the world of demigods. Percy is tasked with protecting her while also trying to keep the secret of the demigod world from getting out. As time passes, Emma shows an uncanny ability to understand the demigod world, almost as if she has some latent demigod blood in her. They develop a bond as they face various monsters and challenges sent by the gods who are not happy with a mortal being so involved. Their relationship could be a mix of friendship and something more as they go through these experiences together.