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

What if Persephone Jackson, the Hero of Olympus, was broken. They had almost made it, all of them with only minimal casualties. Then it happened, slowly they all started to leave her. Not in a voluntary matter, but the worse type of way. Death. They all died, all 6 of them. Thalia and Nico survived, but they busied themselves with work and never saw Persephone. She was alone, or at least that's what everyone thought. No one knew where she disappeared to every school year, they just assumed she was in the mortal world. They where wrong, if anything she was as far away from the mortal world as physically possible. Only they didnt call it mortal, but muggle. ALL RIGHTS GO TO JK ROWLING AND RICH RIORDAN! During marauder's era

This story takes place in Harry Potter and the Order of the phoenix. The order discovers that their old friend, Sally Jackson, is actually Lord Voldemorts daughter. They track her down and find out from Professor Snape that Voldemort is after her son, Perseus Jackson. Will the Wizarding world accept Percy even if he's the grandson of You- know- who? Are the demigods willing to let Percy go to this special world? (I do not own the characters and the real story is of course, and you can just read this as a little fun project from a fan-girl. This is my first time so if you find some mistakes, I'll be thankful for the feedbacks. )

"Water, fire, earth, and air, trudging in at despair. The Wizarding World shall not fear, for half-bloods draw near." mutters Trelawney. Across the earth, Rachel Dare's voice becomes ancient and recites the same words. After the Second Wizarding War, Hecate needs someone to check on her people. So, naturally, it's Percy Jackson and his-. Leo: AWESOME FRIENDS + DA MCSHIZZLE MASTER OF FFFFFIIIIIRRRRREEEEEEEEEEE! How did you even get here? This is a description. Go interrupt during the story. Leo: Fine... SEE YA LATER BAD BOY SUPREMES! Anyways, as I was saying, the 7 + other characters I want to use are going to Pigwarts *someone whispers in my ear* I mean... Hogwarts to do their seventh year.

After losing everything percy Jackson finds out that he has a bit more magic in his blood than he thought. Join percy as he tries to get over his loss but there is evil every where and he may fall off the right path To learn more read the unexpected wizard

I was sent to Azkaban for murder, but I was innocent. No one listened. Some say I am to young to be in Azkaban; others say I deserve it. Red, my cell mate, thinks ten is too young. She's been in here for years, but they haven't broke her and I won't let them brake me. Lola is sent to Azkaban for murder. Where she finds a 15 year old girl named Emma Red and a mass murderer named Sirius Black. Yes the Sirius Black. Together they plan to do something that has never been done before... Escape!

What happens when Justice Destiny Weasley, twin sister of Ronald Weasley, meets her brother after her escape of Azkaban? Started: 21 August 2017

I'm in hiding on the run I kill people, I'm evil it just happened and now I can't stop maybe I'm possessed I don't know? But I'm wanted. I am Alex.

Throne of Glass and Percy Jackson Crossover What would happen if the World form Throne of Glass meets our World? One Morning a portal appears in Aelin's Room. It leads to another world where the childs of the gods are trained to fight against mythological monsters. But not only the courts of Terassen and Adarlan are in the strange World. Some of Aelins acquaintance are there too. And they are not as friendly as the Aelin and her friends. You should have read all of Throne of Glass books by Sarah J. Maas and the Percy Jackson and the Heros of Olympus series by Rick Riordan. HASN'T BEEN UPDATED IN YEARS, MIGHT NEVER BE FINISHED