A cool plot for Percy Jackson Eclipse fanfiction could be that during the eclipse, all the demigods' memories get jumbled up. Percy wakes up not remembering who he is or his friends. His friends then have to help him regain his memories while also dealing with the chaos that the memory - loss has caused among all the demigods. There could be some internal struggles as well, like Percy having to trust his friends even though he doesn't remember them, and his friends having to deal with this new, somewhat lost Percy.
One idea could be Percy having to deal with an eclipse - related curse. Maybe during the eclipse, his powers go haywire and he has to find a way to control them before he endangers his friends. Another could be a new prophecy that is only revealed during the eclipse, sending Percy and his friends on a dangerous quest.
Well, you could have a story where an eclipse is a portal to a different realm in the Percy Jackson universe. Percy accidentally stumbles through it during an eclipse and has to figure out how to get back. He might meet new characters there, like ancient gods or monsters that were exiled to that realm. And he has to use his wits and powers to survive and return home. This could also lead to a whole new arc in the fanfiction where the knowledge he gains from that realm helps him in future battles in his own world.
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.
In a 'Percy Jackson God of Eclipse' fanfiction, perhaps the eclipse is a sign of an ancient curse being unleashed. Percy, as the so - called God of Eclipse in this fic, has to figure out how to stop the curse from spreading and destroying the demigod world. He might have to team up with some unexpected allies and face challenges that test his limits.
One idea could be Percy and his friends getting trapped in a virtual game world that's a twisted version of their own. They have to use their demigod skills to defeat the digital monsters and find a way out.
Maybe Percy is sent on a quest to Atlantis because there are rumors of a traitor among the Atlanteans who plans to side with the Titans. Percy has to navigate the complex political situation in Atlantis and figure out who the traitor is before it's too late. He also has to deal with the Atlantean magic which is different from what he's used to.
One idea could be that Percy discovers a hidden realm within the world of the Wanderer. This realm has its own set of rules and challenges that he has to navigate. Maybe he meets new demigods there who have been lost for centuries.
One idea could be Percy having to make a deal with a minor underworld god to save Annabeth from a new and strange curse that's slowly draining her life force. He has to complete a series of tasks in the underworld that test his loyalty and courage more than ever before.
Well, perhaps the shield was once owned by a powerful demigod from the past. In the fanfiction, Percy starts having strange dreams about this demigod and the shield's true origin. As he investigates, he realizes that the shield holds the key to defeating a new, emerging evil that threatens not just Camp Half - Blood, but the entire world of gods and mortals. So, he has to figure out how to unlock the shield's full potential.
Here's an idea. Emma could be a mortal who accidentally stumbles upon the world of demigods. Percy is tasked with protecting her while also trying to keep the secret of the demigod world from getting out. As time passes, Emma shows an uncanny ability to understand the demigod world, almost as if she has some latent demigod blood in her. They develop a bond as they face various monsters and challenges sent by the gods who are not happy with a mortal being so involved. Their relationship could be a mix of friendship and something more as they go through these experiences together.
One interesting plot idea could be a crossover where Percy Jackson's demigod powers interact with the magic in The Originals. For example, his ability to control water could be used in a battle against the vampires in New Orleans. Maybe he helps the Mikaelson family during a flood caused by a powerful witch, using his water - based powers to save them and in turn they help him with some demigod - related problem he has, like finding a lost artifact.
One idea could be that the gods have lost their powers due to some ancient curse, and it's up to Percy and his friends to find a way to restore them before the apocalypse fully hits. Maybe they have to journey to the very origin of the gods' power.