Olympus has fallen. Gaea's children have won and in her triumph, the world is torn apart. To avert the never-should-have-been, Percy Jackson is thrust back in time, into his twelve-year-old self, memories intact. But he is not alone. The Fates underestimated the Lord of Time when stealing his power, and there is something about this particular demigod brat that intrigues him...

The Primordial of the pit is rising. A new prophecy is revealed. But Percy isn't the same, and neither is Annabeth. He's changed and she's longing for the boy she met when they were twelve. Cap is set on saving Bucky, and Tony is on this new Spiderman. Set during Civil War, Infinity War, and Endgame. Post-BoO. Phase of rewriting, plot might be messy in first few chapters.

Annabeth was slipping and Percy dived to save her; something went wrong. On the surface, Annabeth leads the Seven, desperate to rescue him and unite the camps. Alone in Tartarus, Percy finds himself making harsher choices, discovering darker methods, unlocking deeper powers, tortured and fighting for his life. He swears he's still a good kid. Post MOA

As the eleventh-year-old Percy Jackson receive his Hogwarts letter, he will enter the world which not so different from his own. Watch him grow and witness all of his adventures with his friends. Note: All characters belong to J.K Rowling and Rick Riordan. Later chapter will be written better. Story on hiatus.

Percy Jackson just wanted a break, a normal life. But the Fates weren't done with him yet. After Percy and Annabeth's break-up, he was living in New York with his mother. And then, once again, his world fell apart. Aliens invaded New York, and Percy wants revenge.

Percy Jackson is gone. Ever since he enrolled in the S.H.I.E.L.D Academy 4 years ago he's been Peter Johnson. But when he's reassigned to a new squad, with a whole different set of rules. It was only a matter of time before a video surfaces of him using his powers; causing some interest from high places. Now he's on the run, Only hoping he's fast enough to out run them.

When Dumbledore finds out that Voldemort has a grandson, he and few other members of the Order, including Harry Potter go to Manhattan to bring him to Hogwarts. Will this child and Harry be best friends or worst enemies?

Two brothers separated when their parents die but what happens when they meet again? What if one of the brothers wasn't completely human? how would it look if you throw magic into the mess? Well, in the great words of Percy Jackson the answer to that last question would be 'bad'. AU I do not own either series.

Percy gets taken into custody by Batman for being a suspected terrorist for years. Too bad Poseidon has given his son the short deadline of three days to get himself home safely.. The whole conversation taken place in front of a room full of people. Now Percy has to stress how exactly he is going to handle the situation he's in without having his father coming to his 'rescue'. YJ/P

After leaving camp two years after the 2nd Giant War, Percy Jackson realizes that his specific skill set isn't good for much in the mortal world. When an unforeseen situation arises, he becomes a mercenary. Years later, the mortal world faces danger from the godly world once again. Or a godly world, anyway. This time, though, it's the mortals' own fight. Mostly.

A period of Darkness has befallen Middle Earth. Sauron has risen once again, intending to destroy the Free Peoples of Middle Earth and set himself up as supreme Lord and Ruler; against his immense army there is no hope. With these insurmountable odds, Olympus is forced to send aid, and Percy wakes up in Middle Earth with only one objective: topple the Dark Lord from his throne.

The war with Gaea is over, but Annabeth, Jason and Piper are dead. Percy is struggling to get over Annabeth and just trying to live a normal life when he is recruited by the Avengers. Set after BoO and the first Avengers movie. Loki is an Avenger. Tartaurus and Kronos are NOT the bad guys. Cross posted on wattpad.

Percy murders demigods in cold blood at the end of the second titan war and is banished to Tartarus for eternity. With the Prophecy of Seven coming to pass, he is released to fight in the new war. Romans and Greeks collide and everyone has one question on their minds: which side is Percy really fighting for?

After saving Tony Stark from a monster on a killing spree, Percy Jackson had reached the sightings of SHIELD. Confused of a boys actions they try getting Jackson to join their team. But would he dare show the world that Olympians exist? Would Percy, once again, make another sacrafice to save his loved ones? Some of the Avengers aren't making any of it easier for him to choose.

Percy Jackson is left reeling after Giant War, dealing with the death of Annabeth and so many others. When he retreats from the Greek world, he learns quickly that heroes never get to take a break for very long. The Avengers are split between Steve and Tony, but they are forced to into an awkward and tense reunification when a monstrous threat rises from the depths of Tartarus.

Percy hoped that he will finally have a peaceful life away from the gods. but, one day Hecate arrived at his doorstep and asked for his aid in helping his blessed race, the wizards, in fighting a war against the most powerful Dark Wizard. Percy joins the Order of the Phoenix and met Harry Potter and the others. Disclaimer: I do not own Percy and Harry and their stories

After the war, Percy Jackson is prepared for a normal, peaceful life. However, he is thrown into the middle of a war between wizards and finds out more about his family. Percy Jackson is Voldemort's grandson.

Dumbledore has specifically asked for Percy and Annabeth's help protecting the Golden Trio. Join your favourite characters as they battle villains such as Umbridge, detention, and maybe some monsters. Story rated T.

Zeus kills Sally Jackson with his master bolt when Percy is six months old, drastically changing Percy's life and the course of his future. AU.

Annabeth's life was all going to plan. She's the Head Cheerleader, one of the smartest at Olympus High, and dating the Quarterback and Captain of the football team Luke Castellan. But when she is assigned to a "hoodlum" Percy Jackson to be his mentor during their Senior year her life is turned upsidedown. Modern!AU with Punk!Percy and Girly!Annabeth T for language/suggestive themes

What if instead of going to camp half blood to be trained Percy is sent to a new world where he is trained and becomes the bodyguard of the princess of the fire nation.

Percy's connection to the Earth is gone and is dying. To preserve his life and repay the debt they owed him, the gods sent him to a different world armed with abilities fit for survival. With people trying to capture him, and/or control him, can he resist the urges and risk being a hero once again? [HIATUS]

Percy Jackson's the kid in highschool who always wears over-sized beanies, with not a single strand of hair showing. He also uses hoodies and slouches to hide himself and well, he's pretty much the loser of the school. Annabeth? Well, she's dating the bassist of the band Golden Time, Luke Castellan, she is popular, smart, and gorgeous. How do these two collide? Percabeth. AU.

Perseus Jackson was a strange person, Harry decided. He came from overseas, had the weirdest American accent, spoke strange sayings, had ADHD and dyslexia, and stood up for every kid. He was a Gryffindor, but consorted with Hufflepuffs, Ravenclaws, and even Slytherins. Perseus Jackson was a weird person, Harry Potter decided, but he wouldn't have it any other way.

Percy saved Annabeth by closing the Doors of Death from the Tartarus side and holding the elevator button for her. Percy managed to find the Doors a second time, and equipped with a roll of duct tape. After he exits the elevator of doom, he finds himself in the shadow of a castle-school called... Hogwarts?

After the war Percy Jackson has become even stronger. So it's fair to say that he's a little miffed when Chiron asks him to go demigod scouting. Meanwhile Fury has found some interest in this boy who seems to create trouble everywhere he goes. (Not your average Mary Sue story)

People seem to forget that Percy lives in Manhattan. Sure he is a bit busy with demigodly stuff and okay, maybe he isn't the most observant person on the planet...but he isn't exactly going to miss a massive fucking hole in the sky, especially if it has aliens pouring out of it.

When Percy Jackson was one year old, he saw something he shouldn't have. Harry Potter needs to know what Percy saw. There is just one problem: Percy doesn't remember.

Anybody related to Voldemort must be inherently evil... right? Harry Potter thinks so. Nobody good could come from Voldemort. When Dumbledore announces that Voldemort has a grandson named Percy Jackson, Harry's already labeled Percy as EVIL and put him on his enemy list. But Percy Jackson is not whats expected by a long shot and he's not going to take any prejudices lying down...

What happens when the two greatest magical forces Harry Potter and Percy Jackson come together? Read to find out!

Adopted from Blueh. Used to be called The New Avenger. Percy knew that he had bad luck, as it always was for a demigod, but he never thought about how his life would change after a group of mortals witnessed him face off a hellhound. He didn't even think that they might be the head of a secret agency, or that they would want him to join a group called the Avengers...