The theme of power and its consequences is often explored. As Poseidon's daughter, she has great power over the sea. But in fanfiction, she has to learn how to control it and use it responsibly. Some fanfictions also explore the theme of love, whether it's romantic love or the love for her friends and the camp, which can be a driving force in her character development.
One idea could be her going on a quest to find a lost trident piece that was stolen by a powerful new enemy. This would involve facing various mythical creatures and using her unique powers as Poseidon's daughter.
One great fanfic could be 'The Daughter of Poseidon's Journey'. It follows the female Percy Jackson as she discovers her powers in a new and unique way compared to the original male Percy. She has to face the same old monsters but with her own spin on dealing with them.
The allure lies in the fact that Percy already has a very interesting backstory. As the Champion of Poseidon, fanfiction writers can expand on his powers and his place in the mythological world. For instance, he could be sent on quests that are specifically related to Poseidon's domain, like protecting a sacred sea temple from an ancient evil.
In fanfiction, their relationship could be developed by having Poseidon be more involved in Percy's daily life. Instead of just popping in during big events, he could be there for the small things too. For instance, helping Percy with his schoolwork that involves marine biology. They could also have a project together like building a new safe haven for sea nymphs. Through this, they would bond over creating something positive. Also, Percy could start to take on some of Poseidon's responsibilities in the ocean, with Poseidon guiding him. This would not only strengthen their bond but also show Percy growing into his role as Poseidon's son.
A mermaid friend would be a great side character. The mermaid could help her understand the deeper parts of the ocean and give her advice on using her powers in new ways. For example, teaching her how to communicate with sea animals on a more profound level.
Fanfictions may also depict their bonding in the context of quests. Poseidon could be subtly helping Percy from afar during his adventures. He might send sea creatures to assist Percy or give him signs in the form of ocean - related phenomena. This kind of silent support shows their connection, as Percy starts to trust that his father has his back, no matter what.
There's also a fanfic called 'Poseidon's Promise'. In this one, Percy has to deal with a mysterious prophecy related to his father. The story is full of twists and turns. It delves deeper into the relationship between Percy and Poseidon, which is really interesting to read about. It also has some great action scenes with Percy using his water - based powers.
In fanfiction, Percy could be stronger due to the fact that he represents a new generation. He combines the powers he inherits from Poseidon with his own human ingenuity and modern - day knowledge. This combination gives him an edge. Also, fanfiction writers often like to play with the idea of the underdog surpassing the powerful. Percy, being a demigod, is still in a way an underdog compared to a major god like Poseidon, and making him stronger creates an interesting and unexpected twist.
One idea could be Percy feeling betrayed by Poseidon and then finding a new family among other outcasts in the demigod world. He could form a group with them and go on adventures that are not related to Poseidon at all.