The fanfiction could revolve around the relationship between Percy and Thalia as they work to safeguard Percy's guardian. It could show how their friendship or partnership develops during the course of their adventure. For example, they could start off not getting along so well, but as they face challenges, they learn to trust and rely on each other more.
Perhaps in this fanfiction, the concept of 'shoots' is symbolic. It could mean that Percy and Thalia are taking decisive actions or making quick moves to protect Percy's guardian. They could be in a race against time, trying to prevent something bad from happening to the guardian. This could lead to a lot of action - packed scenes where they have to outwit their opponents and make split - second decisions.
It could be an old enemy of Percy's, like a vengeful god or a powerful monster. They might be targeting Percy's guardian to get back at Percy.
One idea could be Percy and Thalia teaming up to protect a group of young demigods who are being hunted by a new and powerful monster. They could use their combined skills, Percy's water powers and Thalia's electric ones, to fend off the attacks.
A major reason could be the loss of someone they were supposed to protect. If a young demigod under their care dies, they would feel an intense sense of guilt and failure, which could lead to crying.
Well, it could be about a misunderstanding. Maybe Percy accidentally uses his powers in a way that Thalia misinterprets as a threat to her leadership among the demigods. So she lashes out at him, and Percy, not one to back down easily, fights back.
One great 'Percy Jackson Guardian Thalia Fanfiction' is 'Thalia's New Quest'. It shows Thalia in a whole new adventure, facing challenges that really test her skills as a guardian. The author does a great job of portraying her strong and independent nature.
In some fanfictions, it could be an ancient and powerful Titan who has escaped from Tartarus and is seeking revenge on the demigods. This Titan might see Percy and Thalia as the main obstacles in his path to domination.
One possible plot could be that Percy accidentally possesses Thalia due to a magical mishap. He then has to deal with her powers and her relationships while in her body. Maybe he has to keep it a secret from their friends at first.
A plot could be that Percy is given a prophecy that involves him having to form a new kind of family unit. He decides that adopting Thalia is part of fulfilling that prophecy. But in order to fully embrace this new family, they need to go on a journey to different mythological realms. In each realm, they face different challenges that test their relationship. For example, in the Underworld, they have to deal with Hades who is not too happy about their new arrangement. This forces them to rely on each other and grow closer as they overcome these obstacles.
One possible plot could be Percy finding Thalia in a difficult situation, like being hunted by some monsters. He decides to take her in and protect her. He teaches her about the demigod world and they form a strong bond as siblings. They train together to become stronger and face various challenges from the gods and other mythical creatures.
There are many possible plot ideas. For instance, in a fanfiction, Percy might get injured during a fight, and while Thalia is taking care of him, he realizes the depth of his feelings for her. Or it could be that there's a magical influence that makes Percy fall in love with Thalia, and they have to figure out if it's real love or just magic. Also, the idea of them being from different camps (like Camp Half - Blood and Camp Jupiter) and their love having to overcome the differences between the two camps could make for an interesting plot.