A really cool plot could involve a prophecy that predicts the joining of the two camps. This could lead to some initial mistrust and rivalry among the demigods, but as they face common enemies and challenges, they start to bond and learn from each other. For example, the Camp Jupiter demigods could teach the Camp Half - Blood ones about Roman battle strategies, while the Camp Half - Blood demigods could show their counterparts some of their more unorthodox Greek magic.
One idea could be a quest that requires demigods from both camps to work together. Maybe they have to retrieve a powerful artifact that's being guarded by an ancient monster. The demigods from Camp Half - Blood could use their unique skills like Percy's water - based powers, and those from Camp Jupiter could contribute their Roman - style combat and discipline.
One aspect that could be really cool in a Camp Half - Blood vs Camp Jupiter fanfic is the relationships between the characters. In Camp Half - Blood, there are strong friendships like Percy and Grover. In Camp Jupiter, there are different kinds of bonds, more based on loyalty to the camp and Rome. A fanfic could show how a character from Camp Half - Blood forms new relationships in Camp Jupiter or vice versa. For instance, a demigod from Camp Half - Blood might befriend a Roman demigod who has a completely different view of heroism. This could lead to some interesting character development and new storylines.
Reyna from Camp Jupiter would also be a great character to focus on. She's strong, intelligent, and has a lot of leadership experience. In a fanfiction where the two camps meet, she could represent the Roman side well, and her interactions with the Greek demigods would be full of potential for conflict and cooperation. For example, she might initially be skeptical of the more laid - back Greek approach to things, but come to appreciate it as they work together.
Percy Jackson is an obvious choice. His abilities and leadership skills from Camp Half - Blood would be a great addition to any story where the two camps meet. He could interact with the Roman demigods, maybe even have some friendly rivalries with the strong leaders from Camp Jupiter like Jason Grace. His loyalty to his friends and his sense of humor would also add a lot to the story.
In fanfiction, Camp Half - Blood often has a more laid - back culture. It's based on Greek mythology, so there's a focus on individual heroism. The cabins are divided by the gods the demigods are related to. Camp Jupiter, on the other hand, is more military - like. It follows Roman mythology and values discipline and group loyalty. Their cohorts are structured in a more hierarchical way.
A possible plotline could be a competition between the two camps. Maybe there's a prophecy that says the winning camp will gain some great power or avoid a terrible disaster. So the demigods from both camps have to compete in various challenges, like races, combat, and tests of wits. Another plotline could be a misunderstanding that leads to conflict. For example, a theft at one camp is wrongly blamed on the other, and they start to build up hostilities.
In Camp Half - Blood fanfiction, Nico di Angelo is a very popular character. His dark and brooding nature, along with his powers over the dead, draw a lot of readers. At Camp Jupiter, Reyna is often a central figure. She's strong, independent, and has a lot of leadership qualities, which make her a great character in fanfiction stories.
The betrayal of Percy by Camp Half - Blood in fanfiction can also be a way to show Percy's growth and resilience. He has to face the ones he considered family turning against him. This can lead to some really interesting character development arcs, where Percy has to re - evaluate his loyalties and find new allies or even learn to rely more on his own strength.
Gabe would probably be very intimidated at first. Demigods have powers and abilities that are far beyond what he's used to. He might act tough at the start to hide his fear, but as he sees more of what they can do, he could become more submissive or try to make friends with them out of self - preservation.