Alternate Universe - Percy Jackson Fusion FanFiction

Regulus Black & El mar de los monstruos

Regulus Black & El mar de los monstruos

M/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Dorcas Meadowes, Evan Rosier, Barty Crouch Jr.,
Tags
Angst Temporary Character Death Happy Ending Soulmates Regulus Black and Sirius Black Angst Gods Minor Sirius Black/Remus Lupin Alternate Universe - Percy Jackson Fusion Minor Barty Crouch Jr./Evan Rosier Book 2: The Sea of Monsters (Percy Jackson)
Se dice que hace mucho tiempo los Black fueron malditos por uno de los dioses, perderían a todos aquellos que amen de una forma dolorosa, estos los volvería locos, perderían toda voluntad, nunca conocerían la felicidad.- Regulus no solía creer esta l...
Once bitten, Twice shy

Once bitten, Twice shy

F/F
F/M
M/M
G
Updated
11.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Minerva McGonagall, Severus Snape,
Tags
Slow Burn Found Family Minor Character Death Pandora Lovegood and Evan Rosier are Twins Platonic MoonWater Camp Half-Blood (Percy Jackson) Quests i think platonic moonflower Alternate Universe - Percy Jackson Fusion Walburga Black a+ Parenting Black Brother issues
Regulus Black was left by his older brother, in a house which isn‘t a home. He thinks he will never live up to the expectations that are held up for a son of zeus.Sirius Black fled from an abusive household and left his younger brother. He finds a ne...
The Rivers Son

The Rivers Son

Multi
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Severus Snape, Dorcas Meadowes,
Tags
Heavy Angst Fluff and Angst Enemies to Lovers Trauma Dark Marauders Era (Harry Potter) Marauders Marauders Friendship (Harry Potter) Camp Half-Blood (Percy Jackson) Gods Hero Complex Alternate Universe - Percy Jackson Fusion
My name is Remus Lupin. I’m twelve years old. Until a few months ago, I was a boarding student at Hogwarts Academy, a private school for troubled kids in upstate England.Am I a troubled kid? Yeah. You could say that.
¿Otra Weasley? [HP y PJO]

¿Otra Weasley? [HP y PJO]

F/M
G
Updated
14.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Percy Jackson, Annabeth Chase (Percy Jackson), Apollo (Percy Jackson), OC/?
Tags
Angst with a Happy Ending Alternate Universe - Harry Potter Setting Camp Half-Blood (Percy Jackson) Alternate Universe - Percy Jackson Fusion
Que pasaría si viene una Weasley, que nadie de la familia Weasley conoce. ¿Qué pasaría cuando entrara a Hogwarts? ¿En qué casa quedaría? ¿Qué pasaría cuando se encontrase con los Gemelos Weasley, Ron, Percy y Ginny? ¿Qué pasaría cuando conociera al g...
Swords And Stars

Swords And Stars

G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Dorcas Meadowes, Marlene McKinnon/Dorcas Meadowes,
Tags
Other Additional Tags to Be Added Past Child Abuse Implied/Referenced Homophobia Regulus Black & Sirius Black Have a Good Relationship Sirius Black & James Potter Friendship Regulus Black and Sirius Black Both Run Away Abusive Walburga Black Good Parent Euphemia Potter Alternate Universe - Percy Jackson Fusion Mentioned Walburga Black Awesome Euphemia Potter nico and Regulus are cute brothers
This is an edited re-upload of my original fic, which has been orphaned. I didn't like my original writing style, so I'm rewriting it. This is the version that I prefer.A PJO au marauders fic
Greeks, Romans, Hunters, and Wizards:1

Greeks, Romans, Hunters, and Wizards:1

F/F
F/M
Gen
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians & Related Fandoms - All Media Types The 100 (TV)
Characters
Percy Jackson, Thalia Grace (Percy Jackson), Clarke Griffin, Lexa (The 100), Raven Reyes (The 100), Octavia Blake, Reyna Avila Ramírez-Arellano, Lincoln (The 100), Gods and Goddesses (Percy Jackson), Anya (The 100), Titus (The 100), Zoë Nightshade (Percy Jackson),
Tags
Wizarding World (Harry Potter) Alternate Universe - The 100 (TV) Fusion Grounder Clarke Griffin Alternate Universe - Percy Jackson Fusion BAMF Lexa (The 100) BAMF Clarke Griffin BAMF Anya (The 100)
Persephone "Percy" Jackson, daughter of Poseidon, Annabeth Chase, daughter of Athena, Thalia, daughter of Zeus and the Hunter of Artemis, Reyna, daughter of Bellona and the Praetor of the 12th legions of New Rome, Zoë Nightshade, Lieutenant of the Hu...
Astraea's Legacy

Astraea's Legacy

F/F
M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Dorcas Meadowes, Evan Rosier,
Tags
Slow Burn Marauders Era (Harry Potter) Regulus Black-centric Regulus Black and Sirius Black Angst Regulus Black Needs a Hug Protective Sirius Black Alternate Universe - Percy Jackson Fusion
Ten years after his brother runs away, Regulus finds himself alone again at Camp Jupiter after an unlikely acquaintance suddenly disappears. Then, after having nightmares for a month of drowning, Regulus finds himself face to face with the first son...
James Potter and the Olympians

James Potter and the Olympians

F/F
F/M
M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Severus Snape, Dorcas Meadowes,
Tags
Slow Burn Unreliable Narrator Regulus Black and Sirius Black Angst Latino James Potter Modern Marauders (Harry Potter) James Potter-centric Alternate Universe - Percy Jackson Fusion super slow burn Book 2: The Sea of Monsters (Percy Jackson) Book 3: The Titan's Curse (Percy Jackson) squint and you'll see the ships Update as I go
James Potter didn't want to be a demigod, but here he is. As he meets new friends and goes on quest after quest, he'll have to become the hero he never wanted to be.
In the Lap of the Gods

In the Lap of the Gods

F/F
M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Minerva McGonagall, Lyall Lupin, Severus Snape,
Tags
Marauders Era (Harry Potter) no one dies Alternate Universe - Percy Jackson Fusion okay why doesn’t lily have his own tag
“ Deities in plural who people still tell stories about but not entirely believe to be true.”“Like Thor? Are you recruiting me to join the Avengers?”“I’m sorry to say I do not know who to Avengers are and I am not recruiting you to join anything, you...
The Son of the Stars

The Son of the Stars

F/F
M/M
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Severus Snape, Dorcas Meadowes,
Tags
Angst Eventual Happy Ending Slow Burn Friends to Lovers Other Additional Tags to Be Added Past Child Abuse Hurt/Comfort Childhood Trauma Violence Minor Character Death wolfstar dorlene
Look, Sirius didn’t want to be a half-blood.He was ready to live out his days with the Potters, leaving his past behind. But when a series of unfortunate events lead to Sirius alone on Camp Half-Blood’s doorstep, Sirius learns that the wide world of...
Oneshots/ideas

Oneshots/ideas

Other
G
Updated
15.04.2025
Fandom
Harry Potter - J. K. Rowling The Avengers (Marvel Movies) Spider-Man - All Media Types
Characters
Original Female Character(s), Original Male Character(s), Harry Potter, Tony Stark, Natasha Romanov (Marvel), Midoriya Izuku, Bakugou Katsuki, Colby Brock, Sam Golbach, Percy Jackson, Annabeth Chase (Percy Jackson), Apollo (Percy Jackson),
Tags
Character Death oneshots AU Underage Drug Use Underage Drinking No Sex Alternate Universe - Spider-Man Fusion Drugs Suicidal Midoriya Izuku Weed mafia Alternate Universe - Percy Jackson Fusion
You are very welcome to use these.If you do make something based on what i write here, please tag me 🙏🙏 I would want to read them
The magic within you

The magic within you

F/F
F/M
M/M
G
Updated
11.04.2025
Fandom
DCU 방탄소년단 | Bangtan Boys | BTS Percy Jackson and the Olympians - Rick Riordan
Characters
Kim Seokjin | Jin, Min Yoongi | Suga, Kim Namjoon | RM, Jung Hoseok | J-Hope, Park Jimin (BTS), Jeon Jungkook, Kim Namjoon | RM/Kim Seokjin | Jin, Kim Taehyung | V, Jeon Jungkook/Kim Taehyung | V, Jennie Kim, Lalisa Manoban | Lisa, Park Chaeyoung | Rosé,
Tags
Magic Alternate Universe - Superheroes/Superpowers Jeon Jungkook is Whipped Crossover Demigods Superheroes Alternate Universe - Percy Jackson Fusion Rich Kim Taehyung | V BAMF Kim Taehyung | V
Being the son of a goddess mother who feels wronged for being treated as a minor god and a superhero father with no powers, Kim Taehyung seemed to be born with a future inferior to others. Unexpectedly, he was given powers so strong that he can hardl...
Last Resort

Last Resort

Multi
G
Updated
17.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians & Related Fandoms - All Media Types Percy Jackson and the Olympians - Rick Riordan
Characters
Harry Potter, Remus Lupin, Sirius Black, Minerva McGonagall, Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Ginny Weasley, Neville Longbottom, Tom Riddle | Voldemort, Molly Weasley,
Tags
Original Character(s) Post-Traumatic Stress Disorder - PTSD Time Travel Minor Original Character(s) Hogwarts Crossover Alternate Universe - Harry Potter Setting Crossovers & Fandom Fusions Camp Half-Blood (Percy Jackson) Alternate Universe - Percy Jackson Fusion
Harry Potter is dead. The Dark Lord has let chaos take over England. Hecate is worried that soon, England won't be enough for him. She can't let him reach America, and she definitely can't let him wipe out the Wizarding World.Fortunately, there is a...
Life of a Hero/Guardian

Life of a Hero/Guardian

F/F
F/M
M/M
Multi
Other
G
Updated
12.04.2025
Fandom
Star Wars - All Media Types Percy Jackson and the Olympians & Related Fandoms - All Media Types Wednesday (TV 2022)
Characters
Harry Potter, Fleur Delacour, James Potter, Lily Evans Potter, Nymphadora Tonks, Wednesday Addams, Enid Sinclair, Percy Jackson, Wednesday Addams/Enid Sinclair, Fleur Delacour/Harry Potter/Nymphadora Tonks, Susan Bones/Harry Potter, Amelia Bones/Bellatrix Black Lestrange,
Tags
Alternate Universe - Modern Setting Alternate Universe - Harry Potter Setting Alternate Universe - Percy Jackson Fusion Star Wars crossover
Harry potter is just a normal wizard with a huge family. or is he? With the help of his family, partners and his mentor he faces the challenges of being famous, being a Hero/Guardian, and of course the bad guys. Follow Harry and his family in this ta...
Swords and Stars

Swords and Stars

G
Updated
17.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan The Heroes of Olympus - Rick Riordan
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Narcissa Black Malfoy, Marlene McKinnon/Dorcas Meadowes, Frank Longbottom,
Tags
Implied/Referenced Child Abuse Implied/Referenced Homophobia Underage Drinking Camp Half-Blood (Percy Jackson) Jason Grace Lives Alternate Universe - Percy Jackson Fusion Regulus and Nico are besties James Potter is an Apollo kid We love Effie Potter rewritten
A PJO au with the marauders. I don't know where this is going, but it will go somewhere.(I'm editing and rewriting the chapters. I'm going to add more after I've rewritten what I already have)
Herdeiro — Harry Potter AU —

Herdeiro — Harry Potter AU —

F/F
F/M
M/M
Multi
G
Updated
12.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Harry Potter, Percy Jackson, Harry Potter Characters, Percy Jackson Ensemble
Tags
Alternate Universe - Canon Divergence Other Additional Tags to Be Added BAMF Harry Potter Angst and Hurt/Comfort Fluff and Angst Established Relationship Secret Relationship Tags May Change Freeform Gay Male Character Gay Character I'm Bad At Tagging
Onde basicamente Harry é filho de Afrodite, os deuses estão tentando melhorar, esta um caos no mundo mágico e Harry se aventura nos três mundos com seus amigos!
the thieving trio and their friends :)

the thieving trio and their friends :)

F/F
F/M
M/M
G
Updated
18.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Regulus Black/James Potter, Regulus Black, Sirius Black/Remus Lupin, Remus Lupin, Sirius Black, James Potter, Peter Pettigrew, Lily Evans Potter, Mary Macdonald (Harry Potter), Marlene McKinnon, Dorcas Meadowes, Marlene McKinnon/Dorcas Meadowes,
Tags
Not Beta Read Minor Character Death Everyone Is Gay Mommy Issues Additional Warnings In Author's Note Canon Related Daddy Issues Alternate Universe - Percy Jackson Fusion
Sirius Black never really had a choice in family, not really.But after being chased by a Fury in a museum, and fighting her off with a pen, he realizes that MUCH is up for change. Soon he learns that being twelve and a prophesied hero has it's challe...
Your Face

Your Face

F/M
G
Updated
18.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians & Related Fandoms - All Media Types
Characters
Regulus Black, Dorcas Meadowes, Regulus Black/Dorcas Meadowes
Tags
Fluff and Angst Pre-Relationship Alternate Universe - Percy Jackson Fusion Desi Regulus Black patching the other up
Shift : The Learning Curve (on hold)

Shift : The Learning Curve (on hold)

G
Updated
19.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians & Related Fandoms - All Media Types
Characters
Harry Potter, Minerva McGonagall, Severus Snape, Draco Malfoy, Ron Weasley, Hermione Granger, Neville Longbottom, Albus Dumbledore, Gilderoy Lockhart, Rubeus Hagrid, Hermione Granger & Harry Potter & Ron Weasley, Percy Jackson,
Tags
Alternate Universe - Canon Divergence Book 2: Harry Potter and the Chamber of Secrets as a treat Not Canon Compliant - Harry Potter and the Chamber of Secrets Alternate Universe - Percy Jackson Fusion Severus Snape Bashing just a little Neville is a good bro Professor Percy Jackson Professor Annabeth Chase Harry is a Good Bro Ron is a Good Bro
Book One of the Shift universeHarry Potter's second year was shaping up to be something annoying if Gilderoy Lockhart had his way. Luckily for him, two new professors seem set on changing the timeline-- and making sure no one had to grow up as fast a...
Adora and the Trials of She-Ra

Adora and the Trials of She-Ra

F/F
F/M
G
Updated
12.04.2025
Fandom
She-Ra and the Princesses of Power (2018)
Characters
Percy Jackson, Annabeth Chase (Percy Jackson), Annabeth Chase/Percy Jackson, Adora/Catra (She-Ra), Adora (She-Ra), Catra (She-Ra), Scorpia (She-Ra), Entrapta (She-Ra), Bow (She-Ra)
Tags
Fluff Alternate Universe - Modern Setting Slow Burn Hurt/Comfort probably Alternate Universe - Modern with Magic Alternate Universe - Percy Jackson Fusion Alternate Universe - Percy Jackson and the Olympians not really beta read but definitely fan screamed over in the master doc Married Annabeth Chase/Percy Jackson Percy and Annabeth are probably? the only cameos Depends
You shall travel west to the land without rain,To find a weapon in which hidden magic remains.A guide who was trusted is discovered to have lied,To the laws of good or evil, of which destiny you’ll decide. orCatra has been trying to get Adora to come...