His fellow demigods could be potential allies. They might understand his struggles and be willing to fight alongside him. For example, a demigod with water - based powers could complement Percy's abilities. Also, some sea nymphs who have a connection to Pontus might offer their help. They could provide valuable information about the underwater world and its secrets.
One common theme is identity. Since Percy has a different parentage than in the original stories, he often has to figure out who he really is. Another theme is power. Discovering his powers as the son of Pontus and Thalassa and learning to control them is often explored.
Well, it could be about Percy having to deal with the powers and heritage that come with being the adopted son of Pontus. Maybe he discovers new underwater abilities that are different from his Poseidon - given powers. He might also have to face enemies who are after the secrets Pontus has.
Perhaps an ancient sea god who was once an enemy of Pontus. This god could see Percy as a threat because of his heritage. He would use his own minions, like sea serpents and murlocs, to attack Percy and those he cares about. He might also try to corrupt Percy, tempting him with power to turn against his friends.
The plot could involve Percy's journey to discover the true meaning of being the son of Gaea and Pontus. He could be on a quest to find out more about his parents' realms and how they interact with the world of the demigods. Along the way, he may encounter mythical creatures that are related to Gaea and Pontus, and he has to either fight them or make peace with them. There could also be a sub - plot about Percy's relationships with his friends at Camp Half - Blood, as they struggle to accept this new side of him.
A plot could involve Percy discovering a hidden power within him that is related to Pontus. Maybe he has the ability to control a special type of sea creature that was thought to be extinct. As he tries to master this power, he could face opposition from those who fear his new - found strength. He might also meet other demigods who are either helpful or hindering his journey of self - discovery.
The Titans who were once associated with Pontus might be antagonists. They could see Percy as a threat to their plans if he is related to Pontus. They might try to stop him from fulfilling any tasks given to him by Pontus or try to use his new identity against him.
Well, I've heard about a fanfiction where Percy, as the son of Pontus and Thalassa, has to team up with some unlikely allies to face an ancient threat. It's really cool because it combines elements of Greek mythology with new and exciting twists. The author does a great job of creating a vivid world for Percy to navigate, and the action scenes are really well - written. It's a bit hard to find but if you search on some of the more niche fanfiction platforms, you might be able to locate it.
One idea could be Percy discovering new powers related to being the son of Pontus. For example, he might be able to control underwater currents in ways he couldn't before. Another plot could involve him having to face a new type of sea monster that is specifically drawn to his Pontus heritage. He could also go on a quest to find an ancient artifact related to Pontus that has the power to either save or destroy the underwater world.
The other gods might be antagonists. Since Percy is the son of Gaea and Pontus, the Olympian gods could see him as a threat. They might be worried that he'll side with his primordial parents and disrupt the balance they've been trying to maintain. So, they could send their demigod children or even some minor gods to oppose Percy.