1 - 20 of 5,042 Works in Poseidon (Percy Jackson)
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They say demi-god dreams can tell the future, premonitions of what nightmares are to come. Sometimes they are divine messages sent by the gods for a quest, or simply a message from those who now reside in Elysium. If that's true, what do my dreams mean? Who is searching for me, if anyone at all?
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What if Percy Jackson...? | Crossovers by Xifos
Fandoms: Percy Jackson and the Olympians & Related Fandoms - All Media Types, Star Wars - All Media Types, Avatar: The Last Airbender (Cartoon 2005), Marvel Cinematic Universe, Justice League - All Media Types, Pacific Rim (Movies), Percy Jackson and the Olympians - Rick Riordan, Underworld (Movies), A Song of Ice and Fire & Related Fandoms, Marvel, The Avengers (Marvel Movies), Spider-Man - All Media Types
27 Oct 2025
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Various situations "What if?" about Percy Jackson with other universes...
More tags will be added as the chapters progress.
Series
- Part 2 of What if Percy Jackson...?
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A Semi-Charmed Kind of Life by MidnightDarkRose
Fandoms: Percy Jackson and the Olympians - Rick Riordan, Percy Jackson and the Olympians & Related Fandoms - All Media Types, The Heroes of Olympus - Rick Riordan
28 Oct 2025
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Percy knew something had felt off since the war with Gaia.
More than just the nightmares of Tartarus and insomnia that plagued him at night, more than just the guilt of nearly making it to eighteen while so many of his fellow demigods never got the chance.
But something still felt different. Something had changed in him after the war last year. He knew he was still himself, but at the same time he just felt like there was something he was missing.
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Saints and Sinners Keep Score by river_ally
Fandoms: Percy Jackson and the Olympians - Rick Riordan, Batman - All Media Types, The Heroes of Olympus - Rick Riordan
27 Oct 2025
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Gotham breeds the kind of miracles that bleed.
She was supposed to be forgotten; he was never meant to return.
Now Perseis Jackson and Jason Todd walk the same line between myth and massacre, both too stubborn to stay buried.
Every saint has a sin. Every sinner keeps score.
“So just save yourself and I’ll hold them back tonight.” – My Chemical Romance, Save Yourself, I’ll Hold Them Back
Series
- Part 1 of The Breath Between Worlds
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Percy Jackson & The Olympians: The Lightning Thief (but Percy is a girl) by LeftyPosting
Fandoms: Percy Jackson and the Olympians - Rick Riordan
27 Oct 2025
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This is the laziest fanfiction of all time. Not much is different. If you wanted a version of Percy Jackson where Percy was a girl, here you go.
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Ari Jackson and the Olympains by Miss_Mako
Fandoms: Percy Jackson and the Olympians - Rick Riordan, Percy Jackson and the Olympians & Related Fandoms - All Media Types
27 Oct 2025
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Ari Jackson never wanted to be a half-blood— let alone a forbidden daughter of Poseidon destined to either save the world or bring about its destruction. Really, if she had to choose a godly parent at all, it would have been Aphrodite all the way. Alas, the Fates are cruel. At least she has her friends Grover and Clarisse to keep her alive until her time runs out.
UPDATES SLOWLY AND SPORADICALLY
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The Sun and the Reincarnation by YukoQ
Fandoms: Harry Potter - J. K. Rowling, Percy Jackson and the Olympians - Rick Riordan
27 Oct 2025
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Harry wakes to a letter from gringotts being dropped on his face. he learns that his life is not as it seems, and is incredibly confused. Vaults? He had more than the one he’s been using? How come he never knew that? Why did they call him Potter-black? What was going on? He finds that the gods are real and apparently he has three dads? He's a bit confused by it especially since it says one is the god Poseidon? he doesn't know what's going on but he knows he's going to figure it out one way or another also what's this about the fates kidnapping him and people he knows, the gods, and other demigods into Hogwarts to react to the future? guess it's time for Harry to actually figure stuff out. This story will also be posted on Wattpad so you guys can see any pictures I might add (If the chapters have pictures I will put it in a note before the chapter so you guys know)and for those who use Wattpad more than any other platform.
(I know in the original story Percy in born in 1993 but I wanted to change it up and make him the older brother. so instead of being born August 18th, 1993, his birthday will be August 18th, 1980 making it where he will turn 14 in this story. So Hyacinthus (Harry) and Percy will be a year apart.) -
Two By the Sea by Hanlev99
Fandoms: Percy Jackson and the Olympians & Related Fandoms - All Media Types
27 Oct 2025
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Sally Jackson had always felt a little misplaced in this world. The sole survivor of the plane crash that took her parents and her memories at the age of five, she never knew what was the cause of her own particularities.
Why was it that the Greek language came so easily to her, but she often messed up the names of the gods?
Why did she often see myths come to life? Impossible beings that she only saw in her dreams?
Why did coming to the ocean for the first time feel like coming home?
And most importantly, why did the name Sally seem almost wrong to her, even if her Uncle had told her that was her full name?
Life had a way of getting in the way of her solving these questions, until she meets the actual god of the sea one evening and finds herself inexplicably drawn to him in a way she had never felt to anyone before.
Her hidden memories might contain the answers to everything, and who she really is could change everything.
Especially for the forbidden child she and Poseidon would have together.- Language:
- English
- Words:
- 6,074
- Chapters:
- 1/?
- Kudos:
- 2
- Hits:
- 32
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end of beginning by giirl_in_green
Fandoms: Percy Jackson and the Olympians - Rick Riordan, The Heroes of Olympus - Rick Riordan
27 Oct 2025
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Annabeth looked at Grover. "It can't have changed that much around here."
Grover smiled at her, almost pityingly. "Trust me. You missed a lot."
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When Annabeth joined the hunters after saving Artemis, Percy was left at camp. With no one to hold him back anymore, he found some new friends and some new powers. Watch out Kronos, because Percy Jackson isn't the noble heroe he used to be.-
I'm horrible at summaries and English isn't my first language but I promise it's good, so bear with me y'all
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Silent Tongues Speak No Prophecies React! by Chuuyas_a_hottie, lukcylittleflower for Tatortot367
Fandoms: Percy Jackson and the Olympians - Rick Riordan
27 Oct 2025
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'Silent tongues speak no prophecies' by Tatortot367 read the series! :)
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𝐓𝐡𝐞 "𝐏𝐞𝐫𝐟𝐞𝐜𝐭" 𝐇𝐞𝐫𝐨 by StarlightMorningstar
Fandoms: Percy Jackson and the Olympians - Rick Riordan
27 Oct 2025
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Summary
Percy Jackson is the Hero of Olympus. The perfect hero. The perfect son.
Everybody believes he had a perfect childhood with a perfect family with a perfect life. They all believe he had it better, that he was blessed with the perfect life.
What happens when people slowly find out about the tragic truth of their "Perfect" Hero?And happens when an old foe to the Gods comes back for revenge?
Find out in "The "Perfect" Hero"!
ALL CHARACTERS BELONG TO RICK RIORDAN (One belongs to me).
Series
- Part 1 of 𝐓𝐡𝐞 "𝐏𝐞𝐫𝐟𝐞𝐜𝐭" 𝐇𝐞𝐫𝐨
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Perseus Ekleipsi (Title may Change) by PBXAssassin
Fandoms: Percy Jackson and the Olympians - Rick Riordan, Ancient Greek Religion & Lore
27 Oct 2025
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I can't come up with a summary, but basically, this is an Ancient Greece to modern Pjo Au where Percy is the younger half-brother of Artemis and Apollo and is a very powerful Olympian. He is the firstborn son of Poseidon and the lastborn of Leto.
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Elysia The Morrigan by FalconEcosse
Fandoms: Harry Potter - J. K. Rowling, Percy Jackson and the Olympians - Rick Riordan, Ancient Greek Religion & Lore, Ancient Celtic Religions & Lore
27 Oct 2025
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Summary
Years after the end of the 2nd Blood War, which lasted until Elysia turned twenty, the years were filled with horrible battles and wartorn battlefields that threatened the statute of secrecy. After years of being turned into a weapon for the Order and sent to the thickest battles and winning while being looked at with fear and suspicion each time she walks away from the battlefield, and a mixture of hero worship and fear for being the next Dark Lord, Elysia decides to travel the world to explore and learn and to relearn her control of her magic after coming back from her death.
One day when visiting the Gateway Arch, her holiday is interrupted by three kids and a Chimaera drawing her into a world of gods and myths, which might just hold more answers and explanations as to why her magic feels the way it does, and why the title of "The Morrigan" bestowed on her by the magical world feels like it has so much weight to it.
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AI Appearances of Percy Jackson, Harry Potter and others characters by Xifos
Fandoms: Percy Jackson and the Olympians & Related Fandoms - All Media Types, Percy Jackson and the Olympians - Rick Riordan, Harry Potter - J. K. Rowling, A Song of Ice and Fire & Related Fandoms, Game of Thrones (TV), The Lord of the Rings - All Media Types, The Lord of the Rings - J. R. R. Tolkien, The Hobbit - All Media Types
27 Oct 2025
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Appearances of Percy Jackson, Harry Potter and others characters using artificial intelligence
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Strike a Spark and Let It Burn Like a Wildfire by Aliyahcassidy
Fandoms: Percy Jackson and the Olympians - Rick Riordan, Percy Jackson and the Olympians & Related Fandoms - All Media Types
27 Oct 2025
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Things couldn’t be worse lately. Fewer and fewer demigods were making it to the camps. The gods were finally keeping their promises—but only doing the bare minimum. Percy was drifting further and further away from his mother.
In the midst of it all, the Moirai offer a miracle to the children of the Big Three. The real question is: will the gods be wise enough to seize it? -
Percy Jackson : One Who Stole The Lightning by starsfreckles
Fandoms: Percy Jackson and the Olympians & Related Fandoms - All Media Types, Percy Jackson and the Olympians - Rick Riordan, Ancient Greek Religion & Lore, EPIC - Jorge Rivera-Herrans (Albums), The Kane Chronicles - Rick Riordan, Magnus Chase and the Gods of Asgard - Rick Riordan
27 Oct 2025
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Summary
Sing, O Muse, of the storm-born son,
Whose fate is woven from a thousand faces—
He who bears the sea’s wrath and secrets,
Unraveling gods’ masks to save a broken world.{lightning thief rewrite}
Series
- Part 1 of The Unraveling of Fate
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Never a Frown (With Golden Brown) by ratking_withnotail
Fandoms: Percy Jackson and the Olympians - Rick Riordan, Percy Jackson and the Olympians & Related Fandoms - All Media Types, 9-1-1 (TV)
26 Oct 2025
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Summary
Percy Jackson was excited—genuinely excited—for the first time in what felt like years. A new city. A new name. A new face, even. The golden hair, the pale blue eyes, the tattoos that traced his skin like constellations—none of it screamed “Percy Jackson” anymore. He was Evan Buckley now, or just Buck, depending on who asked. He’d keep busy—physically exhausted, mentally occupied, emotionally detached. That was the key. No attachments. No friendships. No relationships. No vulnerability. He’d learned the hard way that getting close to people only ended in pain. Either they died, betrayed him, or saw the legend behind the name and stopped seeing him altogether.
Unfortunately, he hadn’t planned on the 118.
Series
- Part 2 of Rat King's 9-1-1 stories
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The Sundrops Child by Secret_Sirius44
Fandoms: Percy Jackson and the Olympians - Rick Riordan, Tangled (2010)
27 Oct 2025
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Percy Jackson knew two things, he loved his mother, Gaia, and that he should NEVER leave the tower.
Read a MHA version of this and felt like I wanted Percy Jackson to have Long ass hair, So enjoy...it is exactly 3:51 where I live
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The Jackson-Fletcher Chronicles: The Titan's Curse by VIWinthrop
Fandoms: Percy Jackson and the Olympians & Related Fandoms - All Media Types, Percy Jackson and the Olympians - Rick Riordan, The Heroes of Olympus - Rick Riordan, The Trials of Apollo - Rick Riordan
27 Oct 2025
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Lee knew that this mission was a bad idea when Chiron assigned two Big Three kids to go help Grover.
Percy knew that this mission was a bad idea when she let Lee go after the DiAngelo kids.
The Great Stirring has started, the General's curse has been lifted, and Aeneas has sailed.
But if there's one thing that the Titan army had underestimated, it was just how powerful the love between the son of Apollo and the daughter of Poseidon truly was.Series
- Part 3 of The Jackson-Fletcher Chronicles
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Ruthlessness is a Mercy (for the future) by RarepairKai22
Fandoms: Percy Jackson and the Olympians & Related Fandoms - All Media Types
27 Oct 2025
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Summary
They should've known that it could happen.
And when it happened, everyone and the entire world paid the price.
Realising how their choices have contributed to the end of everything, the Fates seek the last remaining demigod, Percy Jackson, as their final hope to correct the many mistakes that led to this moment.
Given the chance to make things better for his loved ones and so many lost souls, Percy embraces the one thing that his dad once said to him. The sea does not like to be restrained, and for the sake of the world, Percy will no longer be restrained.
Ruthlessness is a mercy, and those who stand against Percy will very quickly find themselves at his mercy.