One interesting plot is Percy being summoned by a time - traveling device. He is brought to a future where the Greek gods are forgotten and the world is in chaos due to the lack of their influence. Percy has to find a way to bring back the knowledge of the gods and restore order, all while dealing with the strange new technology and a society that has lost its moral compass.
One interesting plot could be Percy's internal struggle with his new identity as the child of Kronos. He might battle against the dark urges that come with his heritage while trying to stay true to his friends at Camp Half - Blood. Another plot could involve Percy facing off against the other demigods who see him as a threat due to his relation to Kronos.
One popular fanfic idea could be Percy being summoned to a modern-day high school. In this fanfic, he might be summoned by a group of students who accidentally stumble upon an ancient spell. Percy then has to deal with the normal high school problems like bullies and exams, all while trying to keep his demigod identity a secret.
In the 'percy jackson x sally lemon fanfic', a possible interesting plot is that Sally gets somehow involved in Percy's quest in a way that was unexpected. Let's say Percy is on a mission to retrieve a powerful artifact, and Sally, who has some kind of special connection to the place where the artifact is hidden, joins him. Along the way, they encounter various challenges that test not only Percy's physical and magical abilities but also Sally's wits and courage. Their bond grows as they overcome these obstacles together, and it also reveals new aspects of both of their characters to the readers.
Perhaps in a fanfic, Lupa has a prophecy that involves a lemon. Percy is the chosen one to fulfill this prophecy. The lemon is actually a key to an ancient demigod treasure. Percy has to work with Lupa to figure out how to use the lemon to unlock the secrets of the treasure. This could involve going on a quest, facing various challenges, and learning more about the history of the demigod world and the significance of the lemon in it.
One possible plot could be that Percy's secret crush is on a new demigod who has a very unique power. For example, she can control the weather in a way that's different from Zeus' children. Percy tries to hide his feelings as he's not sure how she'll react and also because he's worried about how it might affect their quest they're about to embark on. Another plot could be that his secret crush is on an old acquaintance, like a childhood friend from before he knew he was a demigod. He starts to see this person in a new light and has to deal with the confusion of his new - found feelings while still being Percy Jackson, the hero of many quests.
Well, a plot could be that Percy is kidnapped by a sorcerer who has a vendetta against Poseidon. The sorcerer thinks that by taking Percy, he can get revenge on the sea god. Another could be that some jealous demigods from another camp, who feel overshadowed by Percy's fame, kidnap him. They might try to make him look bad in front of the other demigods. Also, it could be that a mysterious force from the Underworld kidnaps Percy because they fear his growing power and want to keep him out of the way.
Perhaps Octavian's sickness is a way for the author to explore themes of forgiveness and acceptance. He could be a really unlikable character at first, but as he gets sick, he starts to change. The other characters see this change and start to question their own prejudices against him. His sickness could be a catalyst for him to make amends with those he has wronged in the past. And the story could end with him either fully recovered and a changed person, or with his death being a turning point for the other characters to become better.
One interesting plot is Percy's encounter with a mythical creature in an unexpected place. For example, in one story he meets a hippocampus while on a small island. Another plot involves Percy having to solve a riddle to progress on his quest, which shows his intelligence.
One interesting plot could be Percy having to face an alternate version of himself that has turned evil due to some dark magic. This would create a great internal conflict as he battles not only an external foe but also his own dark side.
One interesting plot could be Percy and his friends going on a quest in a new, unknown realm. Maybe a place that's not part of the regular Greek mythology but still related in some way.