One idea could be that Percy has to find a way to break the strange bond that makes him Gaia's 'husband' in the fanfiction world. Maybe he discovers some ancient prophecy that gives him a clue on how to sever this unholy connection.
One great 'Percy Jackson and Gaia' fanfiction is 'The Battle Against Gaia's Wrath'. It has an interesting plot where Percy has to gather new allies to face Gaia in a more strategic way than in the original series. The character development is really well - done too.
One aspect of 'Percy Jackson x Gaia Fanfiction' could be the unique power dynamics. Percy has his own set of powers from being a demigod, and Gaia is an extremely powerful primordial goddess. Their interaction in fanfiction might explore how Percy, with his courage and skills, contends with Gaia's all - encompassing power. It could also delve into the moral and ethical implications of Percy's relationship with such a powerful and ancient being.
In most traditional Percy Jackson lore, he is the son of Poseidon. However, in fanfiction, authors can create all kinds of alternate universes. So, it's possible for him to be depicted as the son of Gaia and Tartarus in some fan - created stories.
Percy Jackson is the main focus, of course. However, in fanfiction, we often see the introduction of characters from different mythologies. So, there could be characters from Roman mythology interacting with Percy. Additionally, there might be some minor characters from the original Percy Jackson series who get more development in the fanfiction. For instance, Nico di Angelo could have a bigger role, maybe helping Percy understand his new powers as the Son of Gaia, or even having some sort of power struggle with him.
One creative idea is a time - travel fanfiction where Percy travels back in time to before Gaia was fully awakened. He tries to prevent her awakening in a completely different way than what was shown in the original series. Maybe by influencing the actions of minor characters from that era.
A fanfiction like this could also explore Percy's character in a new light. He's known for his courage and loyalty, but being married to Gaia would test him in ways he's never been tested before. He might have to make some tough choices, like sacrificing some of his own power or even his relationships with his friends to fight against Gaia. And it could also introduce new characters or creatures that are related to Gaia's realm. Maybe there are some ancient earth spirits that Percy has to deal with, and he has to learn new ways to use his powers to interact with them.
One interesting plotline could be Percy having to face off against new and powerful monsters sent by Gaia. Maybe he discovers some hidden powers within himself to combat them. Another could be Percy forming an unexpected alliance with a group of demigods who were once his enemies but are now united against a greater threat from Gaia. And he might also have to journey to some long - forgotten places related to Gaia to stop her evil plans.
Some 'Percy Jackson x Gaia Fanfiction' may include a love or at least a strong emotional connection between Percy and Gaia, which is a very different take from the original series. This relationship can drive the plot in unexpected directions, such as Percy trying to redeem Gaia instead of simply defeating her. It also adds an element of drama and complexity to the story as it goes against the expected hero - villain dynamic.
He would likely be more in tune with the earth and the sky elements. His powers might not just be limited to water control as before. For instance, he could have the ability to manipulate the ground like Gaia's children and also have some control over the air or weather like related to Ouranos.