It could be that the Sword of Achilles has some sort of special connection to Percy's past or family. So the plot could revolve around him uncovering that mystery while using the sword in battles and facing various challenges. He might have to go on a quest to learn more about the sword and its true power, all while protecting it from those who would misuse it.
Maybe Percy uses the Sword of Achilles to defeat a new and powerful enemy that the regular weapons couldn't handle. For example, a super - strong monster that was immune to normal Celestial Bronze weapons.
One possible plot could be Percy discovering his connection to Achilles while on a new quest. Maybe he has to face a powerful enemy that only his newfound link to Achilles can help him defeat. For example, he might gain some of Achilles' combat skills or invulnerability in certain situations.
Well, the plot could involve Percy being in the shadow of Achilles at first. Since Achilles is so well - known in Greek mythology. But then, a great danger arises that only the combined powers and skills of both of them can overcome. They have to journey to the Underworld to stop a dark force from escaping. During this journey, they reconcile their differences and strengthen their brotherly bond as they face the terrors of the Underworld.
One interesting plot twist could be that Percy discovers he has some of Achilles' more negative traits along with his powers. For example, Achilles was known for his pride, and Percy might start to struggle with excessive pride that gets in the way of his relationships with his friends at Camp Half - Blood. Another could be that the gods, fearing Percy's new connection to Achilles, send out a series of trials that are specifically designed to test his loyalty and his ability to control the power of Achilles. Maybe he has to face off against a powerful monster that can only be defeated if he uses his Achilles - like invulnerability in a very specific and dangerous way.
In the fanfiction of the Curse of Achilles in Percy Jackson, many authors like to play with the idea of Percy's vulnerability. Even though he has the curse which makes him almost invincible, there are always ways around it that the fanfic writers come up with. This could be related to his emotional state or some hidden loopholes in the magic of the curse.
In a Percy Jackson has a Omnitrix fanfiction, the plot could involve Percy being sent on a special mission by Chiron. During this mission, he stumbles upon the Omnitrix. He soon discovers that the Omnitrix has some sort of connection to the Greek gods. As he uses it to transform into various alien forms, he finds that each form has a unique ability that can either help or hinder him in his quest. For example, one form might be able to swim super fast in the ocean, which is great for underwater battles, but another form might be weak against fire, which could be a problem when facing a fire - breathing monster. Along the way, he has to learn to balance his use of the Omnitrix with his own demigod skills and knowledge of Greek mythology to succeed in his mission.
The plot could involve Percy waking up one day and finding a tail instead of his legs. At first, he's confused and a bit scared. But then he realizes it gives him some new abilities, like super - fast swimming. He could then go on a quest where his tail is both an advantage and a hindrance. For example, it might be hard to move on land, but in water, he can out - swim any monster.
Well, another place could be some Percy Jackson - related fan communities on social media platforms like Reddit. There are often threads where fans share their own fanfictions or recommend good ones, so it might be worth a shot to search there for stories about Percy having the Sword of Achilles.
Perhaps the story could focus on Percy's child trying to live a normal life in the mortal world but constantly being drawn back to the world of the demigods. They could struggle with fitting in at school while also having to deal with strange occurrences that only they seem to notice, like seeing mythical creatures in the corner of their eye. This internal conflict between two worlds could drive the plot forward.
Well, it could be about the challenges they face in raising the pups. Maybe there are enemies who target the pups because of their special powers or lineage related to Percy Jackson.
Another theme is identity. With the curse, Percy is somewhat changed. He's no longer just the regular demigod. Fanfiction may delve into how he reconciles this new, more powerful self with his old identity. For instance, he might struggle with the idea that he's now a 'super' demigod while still wanting to be seen as the same Percy by his friends. This can lead to a lot of internal conflict within the character in the fanfiction.