Percy Jackson & Poseidon FanFiction

The Realm of the Sea

The Realm of the Sea

F/M
M/M
G
Updated
13.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians & Related Fandoms - All Media Types
Characters
Harry Potter, Remus Lupin, Percy Jackson, Jason Grace, Triton (Percy Jackson), Cedric Diggory/Harry Potter, Cedric Diggory, Zeus (Percy Jackson), Poseidon (Percy Jackson), Annabeth Chase/Percy Jackson, Percy Jackson & Poseidon, Tyson (Percy Jackson),
Tags
Out of Character Bisexuality Character Growth Good Parent Poseidon (Percy Jackson) Immortal Harry Potter Gay Harry Potter We'll get there Immortal Percy Jackson Undersea Family | Amphitrite & Percy Jackson & Poseidon & Triton as Family Son of Poseidon Harry Potter Poseidon-centric (Percy Jackson) Good Sibling Kymopoleia (Percy Jackson)
The first of many, this will follow the Seven and their magical friends in the difficulties of immortality, trying to understand what happens with their godly family.༄༄༄In which Harry and Percy try to fix the mess that is Poseidon's relationships wit...
Whispers of Pallas

Whispers of Pallas

F/F
F/M
G
Updated
11.04.2025
Fandom
Percy Jackson and the Olympians & Related Fandoms - All Media Types Percy Jackson and the Olympians - Rick Riordan
Characters
Percy Jackson, Annabeth Chase (Percy Jackson), Athena (Percy Jackson), Pallas (Percy Jackson), Poseidon (Percy Jackson), Annabeth Chase/Percy Jackson, Athena/Nike (Percy Jackson), Athena & Annabeth Chase (Percy Jackson), Percy Jackson & Poseidon, Athena & Pallas (Percy Jackson), Athena & Pallas daughter of Triton (Ancient Greek Religion & Lore), Nike (Percy Jackson),
Tags
Fluff Family Reincarnation Newborn Children
Percy and Annabeth's first child is born, they get visitors as the baby meets her extented family.Athena meets the face she never expected to see again, she finally meets with her past compain, best friend and sister again. Getting lost and emotional...
Rewriting the Future

Rewriting the Future

F/F
F/M
M/M
G
Updated
11.04.2025
Fandom
Percy Jackson and the Olympians & Related Fandoms - All Media Types Percy Jackson and the Olympians - Rick Riordan
Characters
Nico di Angelo/Will Solace, Hazel Levesque/Frank Zhang, Percy Jackson, Annabeth Chase (Percy Jackson), Piper McLean, Jason Grace, Hazel Levesque, Triton (Percy Jackson), Poseidon (Percy Jackson), Annabeth Chase/Percy Jackson, Percy Jackson & Poseidon, Frank Zhang,
Tags
Time Travel Characters Reading Percy Jackson Books Camp Half-Blood (Percy Jackson) Powerful Percy Jackson BAMF Percy Jackson
The fates never planned for all the loss. So their next best option? Send the greatest demigods of all time to the past to relive all their trauma so the gods can learn from it!
//Hyacinth Potter and the dumbasses stone//

//Hyacinth Potter and the dumbasses stone//

F/M
G
Updated
15.04.2025
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, James Potter, Lily Evans Potter, Mary Macdonald (Harry Potter), Draco Malfoy, Bill Weasley, Fred Weasley, George Weasley, Luna Lovegood, Percy Jackson,
Tags
Female Harry Potter Master of Death Harry Potter Characters Reading Harry Potter Books Hyacinth Lily potter harry potter and percy jackson are soulmates
.Just a warning, I'm from England and so if the American characters don't use American idioms then its a early apology..------------○♡○-------------"They were destined to meet, written in the stars. It's a shame that they never did. But that's what w...
Cousins

Cousins

Gen
G
Updated
19.04.2025
Fandom
Harry Potter - J. K. Rowling Percy Jackson and the Olympians - Rick Riordan
Characters
Harry Potter, Ron Weasley, Hermione Granger, Hermione Granger & Harry Potter & Ron Weasley, Percy Jackson, Annabeth Chase, Quirinus Quirrell, Albus Dumbledore & Harry Potter, Poseidon (Percy Jackson), Percy Jackson & Poseidon, Luke Castellan, Grover Underwood,
Tags
Alternate Universe - Canon Divergence Secrets I'm Bad At Tagging idk how to tag Crossover Cousins or whatever Poseidon (Percy Jackson) is a Good Parent sally jackson is the best Harry Potter is NOT a demigod and NOT OP or a practical mary sue
In another world, Sally was Lily and Petunia’s cousin. In another world, when her parents died, she was raised by the Evans. In that world, Harry Potter and Percy Jackson are raised alongside each other.
The Son of Tartarus and Rhea: Prologue

The Son of Tartarus and Rhea: Prologue

F/F
F/M
Other
G
Updated
12.04.2025
Fandom
Percy Jackson and the Olympians - Rick Riordan
Characters
Percy Jackson, Poseidon (Percy Jackson), Percy Jackson & Poseidon, Zeus, Rhea, Hades, Sally Jackson, Kronos/Rhea (Percy Jackson), Poseidon & his siblings, Kronos, Titans - Character, Tartarus - Character,
Tags
I don't really know how to tag. Fem Poseidon Her name is Poseida Evil Percy Poseida
I don't own Percy Jackson, Rick Riordan does, so talk to him. I just own most of Poseida and her storyline.An unexpected change of history changed many things. Rhea was forced to make a deal with a certain immortal in exchange for one of her loved on...