Maybe Percy has lost his powers somehow and is in a very vulnerable state. The Avengers find him and decide to help. They take him to their base and try to figure out what happened to his powers. Along the way, they face attacks from their common enemies who see this as an opportunity to take both Percy and the Avengers down. It could involve a lot of action scenes with the Avengers using their different abilities to protect Percy while they search for a solution.
The plot could be that Percy has been kidnapped by an evil organization that wants to use his connection to the sea for their own evil purposes. The Avengers get wind of this and embark on a rescue mission. During the rescue, they have to navigate through a series of traps and fight off the organization's henchmen. Once they find Percy, they also have to deal with the fact that the organization has some sort of device that can nullify the Avengers' powers, adding an extra layer of difficulty to the rescue.
Maybe the Avengers are under a curse that is slowly draining their powers. Percy, being a demigod, has some knowledge of curses. He hears about the Avengers' plight and decides to help. He embarks on a journey to find the source of the curse, facing many challenges along the way. Once he finds it, he uses his powers and the help of the Avengers (even with their weakened state) to break the curse and save them.
One possible plot could be that the Avengers are hit by a strange virus that can only be detected with a rectal thermometer. Iron Man, being the tech - savvy one, tries to create a high - tech version of the rectal thermometer that can scan the Avengers from a distance but fails. So, they have to go through the old - fashioned and embarrassing way. Captain America, being the most embarrassed, has to be the first one. And hilarity ensues as each Avenger has their own unique reaction to this strange situation.
A great plot could be that Thanos somehow discovers the power of the Greek gods and tries to steal it for himself. He starts by attacking Camp Half - Blood. The Avengers, who are aware of some strange energy signatures coming from that area, go to investigate. There they meet Percy and his friends. At first, there is mistrust, but they soon realize they need to work together. Percy and his friends help the Avengers understand the magic and powers related to the Greek gods, while the Avengers offer their high - tech weaponry and combat skills. They then embark on a journey to stop Thanos from achieving his goal, facing many challenges along the way, including some Greek monsters and Thanos' minions.
Here's a plot. There is a magical realm where inflatable sheep are the guardians. An evil force from that realm escapes to Earth. The inflatable sheep follow to stop it, but they need the help of the Avengers. The Avengers are skeptical at first but soon realize the importance of the inflatable sheep. They team up and face various challenges together, like dealing with the evil force's minions who are trying to stop them from reaching the source of the evil.
Well, it could be a really chaotic scenario. Percy has his own set of powers and skills from his world, like his control over water. The Avengers, on the other hand, are a force to be reckoned with. Maybe Percy would initially try to evade them, using his speed and agility in water. But if they cornered him, he might have to fight. He could use his powers in creative ways against the Avengers' different abilities. For example, against Thor's lightning, he could create a water shield. It would be a battle of different power systems and strategies.
Well, it could be a total chaos. Percy has his own set of powers like controlling water and being a great swordsman. The Avengers, on the other hand, have a wide range of abilities. Iron Man could try to blast Percy, but Percy might use the water around to deflect the blasts. Thor's lightning might be a challenge for Percy, but he could also use water as a conductor in some way. It would be a really interesting battle of different powers and fighting styles.
Well, first of all, Percy would need to adjust to the high - tech environment of the Avengers. But his quick - thinking and ability to improvise in tough situations would make him fit in. In fanfiction, there could be great storylines like Percy teaching Thor about different types of water in the mortal world while Thor teaches him about Asgardian magic. And Percy's friendship with the other Avengers could lead to some heart - warming and action - packed stories. For instance, he and Black Widow could team up for stealth missions, using his powers in creative ways.
Another option could be Black Widow. She's very good at adapting to new situations and using her skills in different ways. For Percy, who is coming from a very different world, she could teach him how to be stealthy and use his powers in a more covert way. She could also help him with understanding the political side of the Avengers, like dealing with government agencies and such, which Percy may not be used to in his world of demigods.
In a fanfiction where the Avengers save Harry Potter, it would be a total game - changer. The Avengers' unique skills would be very useful. Hulk could smash through any dark magic barriers. Black Widow and Hawkeye could use their stealth and marksmanship to take out threats from the shadows. And with their combined strength, they might be able to protect Harry Potter from any danger, including Voldemort's Killing Curse.
The plot could involve Percy Jackson's world of Greek gods colliding with the Avengers' universe. Maybe the gods have some sort of issue that only the Avengers' powers can help with, or vice versa. For example, an ancient Greek monster has been unleashed in the modern world that the Avengers are struggling to defeat, and Percy and his friends come in with their knowledge of Greek mythology to assist. It could also be a situation where the Avengers are dealing with a threat that has its roots in Greek magic, and they need Percy's demigod powers to counter it.