In this fanfic, it could be that Percy and Jason are under the influence of a magical spell or a powerful charm. This influence makes them act against their normal moral compasses and betray their friends. The story could then focus on how their friends try to break the spell and bring them back to their side, while also dealing with the consequences of their betrayal.
Well, perhaps in the fanfiction, Annabeth betrays Percy's trust in a relationship way. She could start seeing someone else and use Percy's secrets against him to make herself look better in front of the new person. Or she might side with a group that Percy is against, believing their lies and false promises over Percy's warnings. This could lead to Percy feeling completely alone and having to find new allies.
One possible plotline could be that Percy and Nico are betrayed by a close friend within the demigod community. Maybe they are framed for a crime they didn't commit, like stealing a powerful artifact from the gods. This could lead to them being hunted by other demigods while they try to clear their names.
A plotline could be that Jason is jealous of the easy camaraderie between Percy and Annabeth. Percy and Annabeth have a long history together, and Jason feels left out. So, he tries to insert himself into their conversations and activities. But every time he does, it just backfires. For instance, when they are planning a mission, Jason tries to take over Percy's role in strategizing with Annabeth, but his ideas are not as well - received because he doesn't understand their dynamic as well. This jealousy could also lead to some self - discovery for Jason, where he realizes his own insecurities and works on them.
Well, it could start with Percy being framed for a crime he didn't commit by the gods. This false accusation makes him feel extremely betrayed. He then has to go on the run while trying to prove his innocence. Along the way, he meets other outcasts and together they form a resistance against the gods. They might try to find a way to hold the gods accountable for their actions and create a new order where demigods are treated more fairly.
One possible plotline could be that Percy discovers his so - called friends have been secretly working against him all along. Maybe they spread false rumors about him, which makes everyone in his world turn against him. He then has to go on a journey alone to clear his name.
Perhaps in the fanfiction, Percy is influenced by some dark magic or a curse that makes him betray the son of chaos. The son of chaos then has to decide whether to forgive Percy or seek revenge. The story could also explore how their friends and allies are affected by this betrayal and whether they side with Percy or the son of chaos.
Perhaps they argue over a girl. They are both heroes and might have feelings for the same person. Jealousy and competition could spark an argument between them. Also, their loyalty to different camps, Camp Half - Blood and Camp Jupiter, could be a source of conflict. They might have different ideas on how to handle the relationship between the two camps, which would lead to arguments.
It could be an old enemy from their past, like a resurrected Titan or Giant. These powerful foes might manipulate Percy and Jason into betraying their friends as part of a grand plan to regain power or take revenge on the demigods.
Well, the fanfiction might show Percy being betrayed in a very personal way. For example, a god he trusted deeply, like Poseidon, could turn against him for some political reason among the gods. Percy would then be heartbroken and angry. He might embark on a journey to find a new purpose, away from the world of the gods. Along the way, he could meet new characters who help him see the true nature of the gods and himself.
One possible plotline could be that Poseidon, under some sort of dark influence, publicly disowns Percy. This would leave Percy feeling completely alone and betrayed, as his father's support had been a major part of his identity. He might then have to struggle not only with the regular threats he faces but also with the emotional turmoil of his father's betrayal. Another plotline could involve Poseidon stealing Percy's powers for some self - serving reason, perhaps to gain more power in the pantheon, forcing Percy to find new ways to survive and fight.