Percy cross-over Fanfiction
19 stories
Sea Storms (PJO/YJ Crossover) by rAnDOm-caPitAls
rAnDOm-caPitAls
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What if Sally Jackson was actually Sally Wayne and she was mudered by Gabe when Percy was 8? The greek gods may not be around anymore in this world, but it's filled to the brim with forces of Dark and Light. There are advantages and disadvantages to both sides, but young Percy has his heart set on doing some good. When Percy's life gets more intense. Will he adjust to the new life and make some friends along the way? Or will this son of Poseidon drown in his Nightmares?
Three Worlds One War - The Spark (THG/PJOHOO/HP Crossover) by MaidenDemigod4Life
MaidenDemigod4Life
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Hi! This is a Hunger Games, Percy Jackson, and Harry Potter crossover. I am doing this for my 100 followers celebration. It's a BIG leap but I'm willing to try it. Our favorite villains, Voldemort, President Snow, President Coin, and Goodie Kronos as well as the giants are here, thinking they can destroy these heroes once and for all. At the moment, President Snow has the whole country in his massive iron grip. He is deeply upset by what happened in the Quarter Quell and even more furious that they came out alive. So now he has done the worst thing imaginable. The 76th Hunger Games. The deadliest of them all. No one knows each other except for a select few. Haymitch, Effie, Cinna, and Plutarch have a very specific plan going on for them. There are a few people joining the rebellion and they've talked it all over with them. They've planned alliances. They're just hoping this deadly game won't end the Mockingjay Mission once and for all. Hope you enjoy! Highest rankings: #1 in 76thhungergames (June 11, 2021)
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Lycaon's New Child (Percy Jackson Fanfiction) by TheAuroraLights
TheAuroraLights
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Well, I was thinking that this one is hardly ever done. So, I hope you enjoy it as much as I have enjoyed writing it. It isn't done yet, of course, but I have been debating about putting this up. I didn't know if it was good enough or not. Right. Lycaon is tracking Perseus Jackson, let's see what happens! Disclaimer: Rick Riordan owns PJO/HOO. #Wattys2015
Drowning in the Siren's Song by nightshade128
nightshade128
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A child born from a miracle was named Perseus Jackson. His mother, a loving mortal with the gift of sight, brought together both aspects of the Ocean, combining Poseidon and Neptune into a single being, born from her love. Something never done before, nor heard of. A child armed with the powers from both personas of the sea, knew nothing of the truth. He'd inherited, not only the power to subjugate water, but to charm with his songs like the tides of the sea, an ability exclusive only to the rarest children of Neptune. He was a siren. After unleashing his powers one day, the world realized that he held much greater power than once perceived. But he had to hide it. Such authority was unwelcomed in a world where survival was a fight. One slip up and they would know that he was not normal, even among children considered abnormal- Demigods. It was the beginning of a silent song. It could heal; it could destroy. And the melody was controlled by Percy Jackson, the one demigod who wanted nothing more than peace and quiet.
Coffee buddies by Rshores
Rshores
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Fem! Percy x Tim Drake Persephone Jackson or better known as Percy was done with the whole being a "savior of Olympus" so she decides to leave and go to the most crime ridden city in the area. Gotham. One day she just wants a coffee and just so happens to come across a pretty great guy. They hit it off and the rest is history. Find out what happens when a seaweed brain meets a bat.
Dreaming Alone (A Harry Potter and Percy Jackson Fanfiction) by Astoria_Greengrass
Astoria_Greengrass
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**UNDER EDITING** Upon being betrayed by all his friends and cheated on by his girlfriend, Percy Jackson flees from Camp Half-Blood, broken hearted with an unquenchable thirst calling for revenge. Antagonistic, broken and slightly on the brink of insanity, Percy sought out Hecate, the only goddess who was impartial to him. She offers to send him to a school she created, safe from the destruction of the Gods- but with a price. He had to grant her one wish in exchange, whenever she wanted it and if it was in his ability to do so. Left with nowhere else to go, nowhere else to run, Percy accepts Hecate's offer. Arriving at Hogwarts School of Witchcraft and Wizardry on the 1st September as a Seventh year in solitude, Percy Jackson takes upon a new identity, a chance to start afresh. Could Hogwarts help him back to glory, and succor the hero back to who he was before? There is no try anymore. There is only do. Book 1 in The Blood Betrayal Series All Rights Reserved//Astoria_Greengrass Highest rankings: #1 in Annabeth #1 in PercyJackson rewritten as "cul-de-sac"
How To Be a Dragon (Mythological Dragons Crossover Part #1) by muzzaa_
muzzaa_
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[Completed] After the Giant War, Percy Jackson had thought for his demigod life to be placed on standby. No more attacks from past enemies, no more prophecies to survive through, and no more near-death experiences whatsoever. During a surprise attack at Camp Half-Blood, Percy finds himself with two choices at hand: stay and survive through the endless waves of Greek monsters, or leave and save everything he loves. What he never would've predicted, is being transported into another dimension, transformed into a beast to shield him from his human appearance, and in great need to stop a war side to side with stubborn, hot-headed villagers and their "flying companions." Meanwhile, Hiccup Haddock the Third has critical problems at hand. Now knowing of the existence of a mysterious new Night Fury in the wake of Drago's attack against the Dragon Riders makes the young Chief-to-be question the reality of the Berkian's beliefs. The truth of it all comes down to an epic battle of demigods and fantastical creatures against a madman sought to destroy both Greek and Viking cultures, no matter the cost. * * A How To Train Your Dragon 2 and Percy Jackson crossover. Highest Rankings: #1 in dragons #1 in Percy #1 in Astrid #3 in village #4 in Berk #5 in dragon #9 in gods #10 in water #12 in httyd
Riders of the Gods: A PJO/Eragon crossover(COMPLETE) by burningwater1234
burningwater1234
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Percy Jackson meets up with Eragon(From the Inheritance cycle) after Angela brings the two worlds together, immersing both worlds into magic and myths, different from those they are used to. And when an enemy threatens to reveal the existence of both worlds, Percy, Eragon, and Annabeth may have to meet her demands. Cover made by: GROK #32 in percy(21.9K)[11/7/2025] #1 in Cycle(2.95K)[11/17/2025] #26 in Annabeth(15k)[12/26/2025] #55 in Demigods(11.6k)[12/28/2025] #566 in Crossover (80.8k)[12/20/2025]
Void meets the Avengers by masquaradebelle
masquaradebelle
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After a mission gone wrong, the Avengers need a place to lay low and regroup. The only issue? Most of the available safe houses were compromised when SHIELD fell. When Bruce Banner mentions he might know a place, the team's interests are piqued. But, when a familiar face shows up, will the team be able to handle the chaos? Part 2 of the Void series. Takes place some time after CA:TWS and AoU but not completely MCU cannon compliant.
The New Avenger by bex1112
bex1112
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Everything's different now, after the Giant War. So even after arriving home Percy can't tell anyone the truth; not his mom, not his new, rather odd, neighbor, not the friends that he's afraid to be close to. But the truth always hurts and somehow, the truth always shows. Maybe it's a good thing that his new neighbor, Peter Parker, is just a little too observant. Or maybe it isn't. Meanwhile the world is changing. New threats have risen and been defeated. But people are disappearing, people are dying. And even the people who are supposed to be heroes can't stop this. But that's sort of the point. Now though the darkness which Peter has always managed to keep at an arm's length is right outside his front door. Right inside it. Peter can't lose anyone else. Percy can't lose anyone else. Both are sure that if they do they're bound to lose themselves. Now though loss isn't and if but a when. Not a when but how much. Neither of them plan on getting out of this one. Both are sure that there must be someone at fault. But innocence and guilt mean nothing in this blame game, because with all this hurt, with all this death, with all this pain, isn't everyone somehow to blame? And maybe they aren't so different, Peter and Percy. Maybe they can find a way to work together, fight together, stop this together. Maybe together they can find a way to get out of this one, find a way to save even those who don't want to be saved. Or maybe they can't. Maybe they are forever, always, doomed to be just one moment too late. Highest rank- #57 (!!!) Thanks to @CHAOS_WAYNE for making an amazing cover! (actually, she made 3 because I'm indecisive) Also thanks to my editor, who didn't want to be named but is so amazing.