The fanfic could start with Percy having a strange dream where a voice tells him he's the only true half - blood. This makes him question the authenticity of the other half - bloods at Camp Half - Blood. He could start investigating, which leads him on a journey outside the camp. Along the way, he meets some really strange creatures and half - bloods from other regions. Eventually, he realizes that the concept of being 'the only one' is just a false idea planted in his head, and that all half - bloods are part of a bigger, more diverse community.
Percy could be developed by showing his initial arrogance. He might start to look down on other half - bloods because he thinks he's the only one. But then, as he faces challenges alone and realizes he can't do everything by himself, he starts to grow. For example, when he has to fight a powerful monster alone and fails miserably. This would make him see the value of his fellow half - bloods.
Well, a great plot for a Percy Jackson Camp Half - Blood fanfic could be a time - travel story. Imagine some of the demigods being sent back in time to the era when the gods first created Camp Half - Blood. They could witness the founding events and also face the challenges that the first demigods had to endure. Or perhaps a story where the camp is invaded by a group of demigods from another pantheon, like the Norse demigods. This would lead to a lot of clashes and also potential alliances as they try to figure out who has the right to be at Camp Half - Blood. Also, a plot where a demigod discovers they have a connection to a long - lost prophecy that could change the fate of the camp forever.
One idea could be that Percy has to hide his Titan heritage from the other demigods at Camp Half - Blood. He discovers new powers related to his Titan side that are different from his godly powers. For example, he might have the ability to control certain aspects of nature in a more primal way compared to his Poseidon - related powers.
Perhaps he has been exposed to some sort of deadly and unknown substance in the mythical world. This could be a new type of monster venom or a strange plant that he accidentally ingested. The substance could be attacking his body from the inside, causing his internal organs to bleed, and thus he throws up blood.
In a fanfic, perhaps Percy and his friends accidentally stumble upon Medusa's lair while on a quest. But instead of immediately attacking, Medusa offers them a deal. She says she will give them a valuable clue to complete their quest if they help her get revenge on one of the minor gods who wronged her in the past. Percy and his friends then have to decide whether to trust Medusa or not.
I really liked 'Adult Percy at Camp Half - Blood: New Beginnings'. It explores Percy's life when he returns to the camp as an adult. There are new relationships, new enemies, and the magic of the camp is still very much alive. The story delves into how Percy has grown and how his experiences as a hero as a child still impact him in his adult life. It's full of action, humor, and heartwarming moments.
Percy's jealousy in a 'Camp Half - Blood' fanfic could be a result of his insecurities. Despite his heroic deeds, he may still doubt himself at times. If he sees someone else who seems more talented or popular in the camp, and that person is getting attention from the people he loves, he'll be jealous. It's like he's afraid of being replaced. This jealousy can lead to some interesting character development in the fanfic, as he has to confront these feelings and either overcome them or let them get the best of him.
Perhaps in this fanfic, Percy is the only survivor but he's not entirely alone. He might be haunted by the spirits of his fallen comrades who give him guidance and strength. He could use this to fight against the remnants of the evil forces that still lurk in the shadows, all while trying to rebuild the world that was shattered in the final battle.
The plot could start with Percy waking up after the battle, surrounded by the carnage. He realizes he's the only one left alive. At first, he's in shock. Then he decides to search for any other survivors, even though deep down he knows there are none. He might then go on a journey to find out why he was spared. Along the way, he meets new characters who either fear him or idolize him because of what he's been through.
Perhaps in the fanfic, Percy is a weapon in the sense that he is the key to activating a super - powerful ancient weapon. The gods and goddesses are all vying for control over him because they know that with Percy, they can wield this ultimate weapon. Percy has to navigate through political intrigue among the deities while also trying to figure out his own role in this whole mess.