One common theme is the struggle with identity. Since Percy is the son of Erebus and Nyx in these fanfictions, he often has to grapple with being different from the 'canon' Percy. Another theme is power. Given his new parentage, he might have different or enhanced powers, and the fanfictions often explore how he uses or controls them.
The theme of identity is also quite prevalent. Being the son of such powerful and somewhat mysterious entities, Percy might struggle with his own identity. Is he more like his father, Erebus, associated with darkness and shadow, or his mother, Nyx, the night? Fanfictions often play with this idea, showing his journey to understand who he is and where he fits in the grand scheme of the mythological universe.
You can start by looking on fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. These platforms have a wide variety of fanfictions. Just search for 'Percy Jackson Son of Erebus and Nyx' in the search bar, and you'll get a list of relevant stories. You can also check out some Percy Jackson - related forums where fans might share and recommend such fanfictions.
Another plot could involve Percy being drawn into a quest related to the primordial world of his new parents. Maybe there's an ancient threat that only someone with his unique heritage can stop. This would take him to places like the Underworld in a whole new light, as he has a deeper connection to the primordial darkness there.
Well, it could be. There are so many different takes in the world of fanfiction. Some writers might be really interested in exploring the darker aspects of the Percy Jackson universe and see how it could interact with Erebus, a figure from Greek mythology. They might create stories where Percy has some sort of connection or encounter with the concept of Erebus, thus making it seem like a fanfiction about that connection.
One common theme is identity. Since Percy is the son of Erebus, he has to figure out who he really is now. Another theme is acceptance. He has to deal with how others in the Percy Jackson world accept or reject him because of his new heritage. And of course, there's the theme of power. With his new connection to Erebus, he often has new and sometimes dangerous powers that he has to learn to control.
In this fanfiction, Percy could also become a sort of bridge between different worlds. His human experiences combined with his new family in the realm of Nyx and Erebus could allow him to bring about changes. He might be able to use his knowledge of both worlds to resolve conflicts or create new alliances. For instance, he could help the Olympians understand the primordial forces better, or vice versa.
In this fanfiction, Percy is a character who is the son of Erebus. But without more context from the specific fanfic, it's hard to say exactly who he is beyond this basic family relation. He could be a new take on a well - known Percy from other mythologies or stories, with different powers and a different role to play because of his parentage.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). There are often many works dedicated to various mythological fanfictions. Just search for 'Percy son of Erebus and Nyx' in the search bar, and you'll likely find a selection of stories to choose from.
Developing his powers further is also a way. Since he's the son of Nyx, he could learn to manipulate different aspects of darkness like creating illusions using shadows or traveling through the dark realms faster. This would not only make him more powerful but also show his growth as a character as he masters these new abilities.