In some fanfictions, the power of time can be used in very creative ways. For instance, Percy could use it to age or de - age himself or others. This could create all sorts of interesting situations. He might age a monster to the point where it becomes too old to fight effectively. Or he could de - age a wounded ally to a point before they were injured to heal them completely.
One idea could be Percy discovers a new power related to time during a quest. For example, he might be able to freeze time briefly to escape a dangerous enemy. Another could be that he travels back in time to change an event in the past that has a major impact on the present in the world of the Gods.
A possible plot for a 'Percy Jackson Secret Power' fanfiction could involve Percy having a secret power of teleportation. But this power is not fully under his control at first. He might accidentally teleport to strange and dangerous places. One time he could end up in the middle of a Titan's lair. As he tries to master this power, he discovers that it has a connection to an ancient prophecy. His friends, like Annabeth, help him figure out how to control it and use it for the greater good.
Well, perhaps in the fanfiction, the Power of Dominion gives Percy the ability to enter the dreams of other characters. He could use this to either gather information or to influence their actions in a positive way. For example, he might enter the dreams of a demigod who is on the verge of turning to the dark side and convince them to stay good. Also, he could use the power to create a safe haven for demigods, a place where the power of Dominion shields them from all outside threats.
One idea could be Percy reliving the day he discovers his true identity over and over. Each time he tries different ways to break the news to his mom, like one time being super casual, another time making it a big dramatic reveal. Another plot could be him reliving a battle, and each loop he figures out a different strategy to defeat the monsters more efficiently.
One idea could be Percy going back in time to the era of the Greek gods' creation. He could witness the birth of the first demigods and learn the true origins of his powers. Another plot could involve him traveling back to a time when a great prophecy was first made and trying to change the course of events to prevent a future disaster.
One idea could be Percy having to time - travel back to the very beginning when the primordials first emerged. He could accidentally disrupt the balance of power among them, leading to all kinds of chaos in the present. For example, if he stops a primordial from creating a certain element that is crucial for the modern world's magic. Another plot could involve Percy teaming up with a primordial of time to fix time - loops that are causing disasters in different eras. Maybe he has to enter the time - realm of the primordial, which is a completely different and dangerous place filled with temporal anomalies.
One idea could be Percy discovers a new power related to controlling time and tides that was hidden from him all along. Maybe he can freeze time during a battle to gain an upper hand against his enemies. Another plot could involve Percy traveling through different time periods using his newfound god - like abilities to correct past mistakes in the world of the gods.
One idea could be Percy going back in time to the era of the first Olympian gods and having to deal with the raw, unbridled power of those early deities. He might find himself in the middle of a power struggle between Zeus and his father, Kronos, before the Titanomachy. Another plot could involve Percy trying to prevent a major disaster in the past that has far - reaching consequences in his own time. For example, stopping the release of a powerful monster that was supposed to be sealed away long ago.
One interesting plot idea could be Percy going back in time to the era of the Greek heroes. He could meet Hercules and learn from him. Maybe he would have to face the same challenges Hercules did, but with his own modern - day skills and knowledge. Another idea is that he goes back to the time when the gods first emerged and gets involved in the power struggles among them. This could change the entire course of mythology as we know it.
One plot idea could be Percy having to team up with Hera to rescue a group of demigods who have been captured by an ancient monster. Hera, despite her usual aloofness, realizes she needs Percy's unique skills.
One interesting plot idea could be Percy traveling back in time to the era of the Greek gods' creation. He could witness the birth of the first gods and goddesses and perhaps even play a role in some of the early events. Another idea is him going back to the time of a great hero like Hercules and joining forces with him to complete a quest that was left unfinished. Or he could travel to the future to see what has become of the demigod world and then come back to the present to try and prevent a bad future from happening.