One common plotline is the struggle for control. Naruto has to fight against the entity possessing him, like in many fanfictions where he battles his own body's takeover. Another is the reaction of his friends. They usually try to find a way to save Naruto, which often involves researching ancient texts or seeking out powerful ninja who might know a solution.
One popular 'Naruto gets possessed' fanfiction is 'Possessed Naruto: The Dark Path'. In this fic, Naruto is possessed by a powerful and ancient spirit, which leads to a whole new set of challenges for him and his friends. Another one could be 'Naruto's Possession: A New Power Unleashed', where the possession actually gives Naruto some unexpected abilities that he has to learn to control.
In terms of the overall plot, it could lead to a race against time. The characters will need to find a way to exorcise Vecna from Will quickly. This might involve seeking out new knowledge, perhaps from an unexpected source. Maybe an old character from the past who has some knowledge about Vecna's possession returns to help. It also opens up the possibility for new alliances and betrayals within the group as they struggle with this new situation.
Well, a frequent theme is the change in Dipper's personality. When possessed, he could become more aggressive or withdrawn, which creates a contrast to his usual curious and determined self. There may be a theme of redemption too. If Dipper does something bad while possessed, the story could be about him making amends once he's free. And sometimes, the fanfiction might use the possession as a way to introduce new powers or abilities that Dipper has to learn to control.
A common theme is the battle for control. Harry is constantly fighting against the possessing entity for control over his body and mind. For example, in many fanfictions, he tries to resist using dark magic that the entity might force him to do.
I took a trip in my Subaru Crosstrek to the coast. The drive was beautiful. The car handled the winding coastal roads with ease. I could feel the power of the engine when I needed to overtake other vehicles. And the view from the car was just stunning. I stopped at several lookout points and just enjoyed the moment, all thanks to my Subaru.
Well, the plot could involve the girl suddenly showing strange behaviors like speaking in different voices, which are the voices of the ghosts. Maybe she starts to have memories that are not her own. For example, she might remember events from different historical periods if the ghosts are from those times. The ghosts could be trying to use her body to fulfill their unfinished business on Earth, like seeking revenge or finding lost loved ones.
One of the most likely possessing entities could be Bill Cipher. He's a powerful and malevolent being in the Gravity Falls universe, and he has shown an interest in Dipper before. Another possibility is an ancient spirit or demon from the forest around Gravity Falls. The forest is full of mysteries, and it's not hard to imagine some dark entity lurking there that decides to possess Dipper.
I once had a Subaru Outback. It was an amazing experience. The all - wheel - drive system made it handle various terrains so well. I could drive through muddy roads during rainy seasons without any trouble. It was also very reliable for long - distance trips. I remember one time I drove from the city to a remote mountain area. The Subaru just kept going smoothly, and the comfort inside the car was great too.