Well, one possibility is that Percy finds out and is heartbroken. He might distance himself from Annabeth completely. In the fanfic world, this could lead to Percy going on a self - discovery journey, finding new friends or allies. Maybe he even meets someone new who helps him heal from the betrayal.
In the fanfic, it's also possible that the relationship between Annabeth and Percy becomes more complicated. Their friends might get involved, some taking Annabeth's side, believing in her regret and the idea of forgiveness, while others stand firmly with Percy, feeling that he should move on. This could create a rift among their group, adding more drama to the story.
One possible consequence could be the breakdown of trust between Annabeth and Percy. Percy might feel extremely hurt and betrayed, which could lead to him distancing himself from her. Their friendship, which was the foundation of their relationship, might be severely damaged.
She might realize it when she sees Percy's reaction to her actions. For example, if Percy looks at her with such disappointment and hurt in his eyes, it could be a wake - up call for Annabeth. That look could make her see how much she has damaged their relationship.
Percy could be furious. He has always been loyal to Annabeth, and this betrayal would be a huge blow. He might immediately cut off all contact with her and go off on his own for a while to cool down.
In most fanfics, this is often just a fictional and sometimes out - of - character plot device. There's no real evidence within the official Percy Jackson canon for such a thing, but in fan - created stories, it could be based on the author's desire to create drama. However, it goes against the core relationship we know from the original books.
Another possibility is that Magnus's walking in could actually be a plot device to bring the three characters together for a greater purpose. For example, they might discover a new threat that they need to face together. Percy and Annabeth might initially be annoyed at Magnus for barging in, but then they realize that his presence is necessary for their next big adventure. It could be a moment that changes the dynamics between them and sets off a whole new story arc.
Well, it could be that Annabeth visits Percy to help him with some sort of problem. Maybe he's having trouble with his powers or there's a mystery at his place that she can assist in solving. They could have deep conversations about their past experiences and how those have shaped them into who they are now.
In this fanfic, Percy and Annabeth could face some challenges. For example, the babysitting job might be a part of a quest. The kids could be in danger from some mythical creatures. Percy and Annabeth would then have to protect them while also taking care of their basic needs. They might also teach the kids about Greek mythology and their own powers, which could be really interesting.
In this fanfiction scenario, when Annabeth sees Percy on the field trip, it could be a moment full of unspoken emotions. She might be initially hesitant to approach him, but her curiosity gets the better of her. Once they start talking, they could discover that they are both there for a very similar reason related to their demigod world, like looking for a hidden artifact in the location of the field trip.
They could participate in a school sports event. Percy, with his natural athleticism, would be great at swimming or track. Annabeth might be more into something like debate team or chess club. But then a rival school turns out to have some sort of demigod - related threat, and they have to work together to overcome it while still trying to win the sports event or the club competition.
Well, they might have a really emotional moment. Percy could run to Annabeth and just hug her tightly. They would probably share all the things that happened to them while they were apart. Maybe Percy would tell her about some new adventures and the challenges he faced, and Annabeth would listen intently.