To avoid war, Albus Dumbledore requests the help of the God of the Underworld to send champions, with a very profitable payment in return. Obliged, Hades sends his son and his favourite nephew to handle the task. Meanwhile, a 14 year old Harry James Potter deals with the pains of being a 14 year old boy: hormones, hot boys, and the Triwizard Tournament. Not that Neeks and Perce have it easy. With their own past actions, feelings, and secrets forced to the surface, it's only a matter of time before needed conversations are had. Mostly told through the eyes of Percy, views will switch to third person omnipotent for other major plot points. Not for those under 18 and there will be lots of triggering experiences of war, torture, and abuse so reader beware. Inspired by a few headcanons and fanfics. Please DM for proper credit. No copyright infringement intended.

Basicaly S.H.I.E.L.D gets Percy as a recruit.

Sequel to Agent Jackson: Level 12

Everyone knows Steve Rogers is Captain America. But when Tony finds him arguing with a blonde girl of about 18 in their new tower, the truth comes out. Annabeth is missing her Seaweed Brain, who disappeared long ago on a mission, falling to his supposed death with another man who has turned up alive. Bucky Barnes. But where is Percy? ***DISCLAIMER I AM NOT RICK RIORDAN OR STAN LEE OR WHOEVER WROTE THE COMIC BOOKS I ONLY OWN ANY OCS THAT COME UP, NOBODY ELSE!***

A few days after the giant war, Percy is alone in the world. A week out of Tartarus, EVERYONE is gone... all because of Gaia. Now a group of "super heroes" want Percy, but he wants to be left alone. There's something big coming, something that only two people have seen, but three have experienced. Only one is still alive... He's coming and he's after something. Or Someone... Avengers assemble to try and detain a certain half blood. No records of him, just his name, age, parents(deceased), a few notes, and a photo from about 9 months ago. Who is Percy Jackson? Avengers Assemble! All characters belong to RR & Marvel Works

New version of the one I accidentally deleted. Percy ends up joining the Avengers and meets Loki, where Loki becomes an older brother figure to Percy. Enjoy!

She first saw him when she was 22 years old, and injured on a mission. He was 10 years old, and visiting an aquarium. Percy Jackson looked into Natasha Romanoff's weary but determined eyes, and decided to help her. And so, he pulled a lever, spilling his class and her enemies into a tank. That was not the last she saw of him. By the time several years pass, the two green-eyed siblings by bond will be known as heroes, albeit of different worlds. Perhaps they don't know everything about each other. But they do know that they will always have each other's backs. He helps her out when her missions don't go the way they planned, which doesn't happen too often. She teaches him how to be a good spy, although that isn't the intention when they start the lessons. And they become very close, just as close as true siblings, in fact. So when Natasha finds herself in a complicated position during the Avengers' Civil War, Percy decides to interfere. And the Avengers are extremely surprised when they meet Natasha's younger brother. Plans are made and set in motion, alliances are completely misconstrued, friendships are tested and broken, and the two siblings find themselves on their own side against the world. However, there's something bigger in the works for the Avengers, and they'll need all the help they can get to face it. Including the two green-eyed siblings in everything but blood. This is largely Marvel canon compliant up until Captain America: Civil War, with Percy's interaction with Natasha being a background to the PJO books. Cover by @cajoling - she's awesome, honestly I'd check out her work as well lol

look at the title *Warning: very slow updates; you have been warned...*

I am sorry for making another one of these (not) so bare with me. I just love these types of stories. It's the Percy is the last of the seven, everyone else is basically dead and Percy joins the Avengers. Maybe there will be some twists but im not sure.

Percy Jackson and Annabeth Chase have survived countless monsters, gods, Titans, and finally their most difficult opponent of all--high school, though not without their fair share of mishaps and unexplained absences. All they want to do now is enjoy their summer before tackling their next adventure; college. After a series of strange encounters, however, they realize that this summer is going to be just as eventful as the rest. Meanwhile, Earth's Mightiest Heroes are fractured. Tony Stark and Steve Rogers haven't spoken in months, and even with new members, the team is suffering. They know that something is coming, but the question is; will they reconcile in time to thwart it? With the appearance of old friends, new enemies, and peculiar allies, the Avengers are forced to accept that the world is even bigger than they thought. A/N: Important information such as the timeline and other details provided in the beginning author's note.