It could be an old demigod from a long - forgotten camp. Maybe someone who was exiled or lost during a great war in the past. For example, a demigod who had the power to control the weather but was shunned because people feared their power.
One idea could be exploring the backstory of the forgotten warrior more in - depth. Maybe they were once a great hero in a forgotten era of the Percy Jackson universe and got lost in time somehow. Another could be that the forgotten warrior has a special power that is now needed to defeat a new, emerging threat. They could be a key to unlocking an ancient prophecy that no one has understood until now.
One idea could be that Percy, as the lone warrior, has to face a new threat alone. Maybe a powerful and ancient monster that has been awakened and no one else believes in its existence at first. He has to rely on his own skills and the limited resources he has.
It could be a demigod who was overshadowed by the more well - known ones like Percy. Maybe someone who was born to a minor god or goddess and got lost in the shuffle. For example, a demigod of a nature god who was always in the background while the big battles were fought by the children of the more prominent Olympians.
The plot might involve the forbidden warrior having some special powers or abilities that Percy has to figure out how to work with. It could be that the warrior was once banished or exiled for reasons that are gradually revealed. And Percy, being Percy, gets dragged into the whole situation, and they embark on a journey full of challenges and self - discovery. Along the way, they might encounter other mythical creatures and have to use their combined skills to overcome obstacles.
In Percy Jackson fanfiction, a perfect warrior often has a combination of physical and mental strengths. Physically, they might possess great combat skills like being proficient in sword fighting, which is a common trait among demigods in the Percy Jackson universe. Mentally, they need to be able to think quickly in battle situations and make smart decisions. For example, Percy himself is a great fighter not just because he can control water but also because he can strategize on the fly.
Well, it adds a new and exciting twist to the original story. Writers like to explore different scenarios, and the idea of Percy being forgotten creates a lot of opportunities for drama and new character development.
Percy Jackson is likely to still be one of the main characters. Since it's related to his world, he'd be in the center of the story. Alongside him, there could be new characters representing the forgotten primordial beings. They might be ancient and powerful, with names and abilities that are unique to this fanfiction realm.
I don't think it's overly popular. Fanfiction often focuses on more common themes like Percy's adventures, his relationships with other characters like Annabeth. The 'forgotten god' concept is quite different and might not appeal to the majority of Percy Jackson fans who are more interested in the established storylines and character dynamics.
Well, he could end up in a situation where all his friends are incapacitated. For example, they are put under a powerful spell. Percy then has to be the lone warrior to fight against a group of evil demigods who are trying to take over Camp Half - Blood. He'd have to use his water - related powers in new and creative ways.