The Demigod Invasion (Percy Jackson and Harry Potter Crossover) - FluffyeEyeball - Wattpad

The Demigod Invasion (Percy Jackson and Harry Potter Crossover)

Reads 157,129
Votes 3,383
Parts 24
Time 1h 56m

Reads 157,129
Votes 3,383
Parts 24
Time 1h 56m

It was a month after the Second Titan War, and Percy, Nico, and Thalia are reluctantly being sent to Hogwarts School of Witchcraft and Wizardry on a quest. But, Percy would much rather spend it with his Wise Girl. Their job: protect Harry Potter. A seemingly easy quest, until Harry's name ends up in the Tri-Wizard Tournament. Now, they find themselves getting grey hairs, and losing sleep, as they try to keep us with the Wizarding World.

In this crossover, they meet Ron, Harry, and Hermione as they try to navigate their fourth year and the Tri-Wizard Tournament. But what evil plans do they discover one Goddess has in mind? Read and find out.All Rights Reserved

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HP and PJO Fanfiction by Avery_flores11

Percy Jackson is finally enjoying life. The summer before college starts and his new life in New Rome with Annabeth. But the gods aren't done yet. Percy is sent with two other demigods on a special quest in a parallel universe, where he has to protect someone called "The Chosen One" from a terrible force as evil as Tartarus himself. But Percy is still recovering. Will he be able to protect Harry, finish this quest, and save this parallel universe? Harry Potter is back. Never did he think that he would do an eight year at Hogwarts. Especially after the Wizarding War. Hoping for a normal, unchaotic year fills his dreams, but of course, he wished too soon. Three exchange students from America arrive, and Harry is suspicious. Not only does strange things seem to happen around them, people begin seeing... monsters. Then, one day, Professor Trelawny speaks a prophecy. Will Percy and Harry be able to stop this prophecy? Or will this world perish and the gods along with it?

Mixed-blood Harry Potter and Percy Jackson Crossover.(completed) by 22Lovely_Unicorn

This story is about how the seven plus Nico and Thalia learn they are more than the average demigods. They go to a new school for wizards and witches and befriend the golden trio, Harry Potter, Ronald Weasley, and Hermione Granger. Everyone gets settled down to a peaceful life just to be disrupted by a rising new threat. Will they beat this unknown threat or will they die trying? Who will be the side that claims victory? Good or Evil? DISCLAIMER!!!******* I don't own the PJO or HP characters They belong to Rick Riordan and J.K Rowling!!!!!*********

The Big Three Go To Hogwarts [COMPLETED] by HarryFreakinPotter7

Percy, Thalia, and Nico go to hogwarts to protect Harry in his 4th year. Percy also competes in the Triwizard Tournament as a student from Hecate's School of Witchcraft and Wizardry. Draco, Snape, Luna, Hermione, or any other wizards will not be demigods. Only Dumbledore will be a grandson of Hecate. This takes place after Blood of Olympus. I know there are a LOT of these fanfics, but I hope mine will be a little different than others.

Demigods at Hogwarts | the rescue mission ✔ by PiperAngelo

Kidnapped, separated, forced to save the world by condescending gods-Annabeth Chase and Percy Jackson don't need any more immortals on their doorstep, demanding the "please-clean-up-our-mess" service they never offered in the first place. But when Annabeth disappears from Camp-Half-Blood without a warning in late August, Chiron recruits Percy and his demigod companions to hunt her down. They soon find themselves posing as seventh-year exchange students at Hogwarts, and are introduced to a haunted British castle, a deadly Triwizard Tournament, and a boy named Harry Potter. With Hermione Granger determined to uncover Percy's real identity and Professor Dumbledore hell-bent on being as unhelpful as possible, the demigods struggle to navigate a world where everyone can use magic for better or for worse. Percy competes in the Triwizard Tournament with what is perceived as false hope to all his friends, and a belief that victory will lead him to his estranged girlfriend. But dark secrets are unraveled with each passing day, and the demigods all have their own battles to fight. Temptation, cowardice, PTSD and distrust gradually drive them further apart-will they ultimately defeat the sinister force that brought them to this deceit-ridden school? Because Harry Potter is not the only one with an unknown past, and Percy's own roots are tied to his enemy's 𝙧𝙚𝙖𝙡 motive.

The goddess not so ordinary by BestiesFlower66

Long before Percy Jackson, the daughter of Zeus and Hera was born, named Selena and created as a hope and a protection for the gods in case something bad happens. Her sister Eris, jealous, threw her into the world of humans. She had to face challenges living as a "human" for thousand years and always sought to pursue her destiny. After saving Percy and Annabeth from vampires, things get complicated between the 2 saviors. One day, Selena encounters the camp half-blood, and makes many friends and enemies along the way. How will she be able to overcome all the threats? What is her destiny?

Percy Jackson and the Triwizard Tournament [Book 4] by LindinCapps

After another rough summer, Percy Jackson just wanted to have a calm school year with his family and friends. A year of joking and goofing around like he used to have with one of his friends. This friend was Harry Potter. During their fourth year at Hogwarts School of Witchcraft and Wizardry, the Triwizard Tournament comes around. Percy is chosen to represent Camp Half-Blood in the tournament. Follow Percy as he deals with magic, monsters, and three dangerous challenges in his fourth year at Hogwarts.

Demigods At Hogwarts | ✓ by ClaireValdez

Another prophecy, another quest. Seven demigods enrol as students at the Hogwarts School of Witchcraft & Wizardry. They're hoping to help the wizards and witches defeat...well, they have no idea. The poor demigods get an overflow of homework and boredom (or not?) as they wait for something to happen. But the Titan and Giant War were not the last war for the demigods, and neither was the Second Wizarding War the last for the wizards...this is. 𐄙𐄁𐄙𐄁𐄙𐄁𐄙𐄁𐄙𐄁𐄙 Cover made with Viria's art Highest ranks - #1 in demigods, #5 in hogwarts, #3 in percy jackson, #1 in annabeth chase, #1 in nico di angelo, #2 in leo valdez, #4 in crossover, #1 in percabeth, #19 in harry potter, #11 in pjo, #1 in hp

[Demigods Quest to Hogwarts] PJO and HP Crossover by ao3isbetterr

Nico, Percy, and Thalia are given a quest that only children of the Big Three can complete... together. They must go, to Hogwarts. (takes place in The Dark Prophecy) I got bored of all of the other nonaccurate Demigods go to Hogwarts and the only good one I found was updated 2 years ago so I figured I'd write my own

An Unlikely duo (AF/PJO/HP Crossover) by KeeraKraze79

Artemis Fowl had always known that he was different. He was a 10 year old criminal mastermind who was plotting ways to kidnap a fairy. It doesn't get much more different than that. But he was yet to discover exactly how different he was.... Nico di Angelo was not a happy camper. The war with Kronos was looming and Nico still hadn't managed to convince Percy to visit the Styx. Even worse, Hades had got it into his head that Nico needed to socialize and "learn about his heritage". What's all this about wizards? What happens when two of the world's most socially awkward 11 year old's run into each other at Hogwarts School of Witchcraft and Wizardry? Hogwarts is in for a bumpy ride....

Demigods Vs Magic. by KnightCrawler101

Part 1 of the "Demigods...." Anthology. Demigods and Wizards. Two groups of supernatural ability. So similar, yet so different. Ever wondered, which one would come victorious in a battle to the death? Well, it happened. Their worlds collided head-on, erupting in a swirling inferno no one could have predicted. It was survival of the fittest, the most ruthless. Two sides entered the battlefield, but only one will walk out. Percy Jackson and Harry Potter knew this. And they were ready. To fight, and to kill. "Neither can live while the other survives." Let's see who won, shall we?

Annabeth Chase the Triwizard Champion by AsexualConfusion

Annabeth was expecting a normal end to summer. She was expecting to end the day with Percy and wait for her father to pick her up. What she got instead was a quest shoved in her face. And not just any quest, no, Annabeth had to become fourteen again, go to a magical school in the past, and protect a boy named Harry Potter from a rising dark lord. Even worse, she had to go alone. Not only that, but Annabeth's quest is made even harder by some arbitrary school rivalry that pits Harry Potter and his friends against her. Because what's normal when you're a demigod? Highest ranking: #1 camphalfblood 09/22/2023 #2 annabethchase 08/15/2023 #1 wizardingworld 11/16/2023 #1 annabeth 12/16/2023

The Coming of Nico di Angelo by ninjagirlmai

Three demigods shall travel to the followers of Hecate, The monster inside lets the dark one blood see, On the brink of destruction, Poseidon and Athena unite, The father of blackness has a great insight, The friend is an enemy, the enemy a friend, Against a weak but powerful army, the child must reveal his true self in the end... A year after Gaea's Awakening, Nico di Angelo is chosen to lead a quest to Britain in order to find Tom Riddle, a man who has defied Hades and cheated death twice. With Percy and Annabeth accompanying him, Nico must find and destroy seven horcruxes, navigate through his fifth year at Hogwarts, and deal with his own problems back at Camp Half-Blood, all while hiding the fact that he's a demigod from all the wizards in England. Between a budding romance with a certain son of Apollo, a burning desire to make his father proud, and an old vow against killing mortals, the son of Hades is going to do whatever it takes to outwit the Fates and succeed... or die trying.

Percy Jackson and the Triwizard Tournament (Goblet of Fire) by ThatOddKiddo

"So... Thalia... why are you even on this quest again?" "I'm here to kill a dragon." "Oh... that's... nice." Come join the adventure Percy, Annabeth, and Thalia are having as they venture to Hogwarts! Facing dragons, Dark Lords, and most dangerous of all... Potions Class with Snape, will these demigods succeed in protecting Harry Potter? And what might they find along the way? A certain Son of Hades perhaps? Long lost secrets? DISCLAIMER: I DO NOT OWN ANY HARRY POTTER OR PERCY JACKSON CHARACTERS TAKES PLACE AFTER BLOOD OF OLYMPUS AND DURING THE GOBLET OF FIRE! Best Ratings: #1 in crossover, annabethchase, and triwizard TOTAL WORD COUNT: OVER 106,000 words!

Percy Jackson: Grandson of Voldemort by Poke_Master57

Takes place after the Deathly Hallows and the Blood of Olympus Percy Jackson thought he could finally live a normal life. He was going to fail high school, be the captain of the swim team, spend a whole, normal year with Annabeth. Yup, not gonna happen. Harry Potter has to redo his seventh year at Hogwarts. At least he gets to be with his best friends. Then some new kid shows up and he can't help but be a little jealous. He was the grandson of Voldemort and the girls were just falling at his feet. Even Ginny and Hermione were swayed by this boy. He was a death eater, and Harry could prove it. Luckily for him, the Triwizard Tournament was right around the corner. If the death eater was chosen, it'd be fun to watch him fail. Warning : Ron/Hermione and Harry/Ginny did not happen yet. Second Warning : Sirius, Snape, and Dumbledore are still alive. Just a disclaimer for the whole book : All rights go to Rick Riordan and J. K. Rowling Cover courtesy of @thatgirlariadne

Collision (PJO/HP Crossover) by music_and_literature

All is as it should be. Percy Jackson and Annabeth Chase can finally relax after Gaea has returned to her slumber. Both are alive and excited for their future. But what will happen to their plan of college in New Rome when two meddling goddesses interfere once again? This time it's only a job for the Dynamic Duo. The rest of the Seven have earned their peace, but apparently Percy and Annabeth have not. They find out that not only are Greek and Roman gods real, but another myth is not such a fable. Their next journey will take them to Europe--to the Hogwarts School of Witchcraft and Wizardry. Harry Potter and his friends have finally beaten the Dark Lord. Voldemort is gone and all they want is a normal, uneventful year. Returning to pass their seventh year of magical studies, the Golden Trio finds that their troubles are far from over. Two new students join the misfits of Hogwarts and Harry, Ron, and Hermione do what they do best-dig deep to uncover the skeletons in Percy and Annabeth's closet. Little do the wizards know that the demigods are already on to them, and doing everything in their power to protect their secret. What will happen when all of the cards are on the table? Will they put aside their differences, trust each other, and work together? Or will the world witness a monumental battle between the Golden Trio and the two-time Saviors of Olympus?

To Thwart The Darkness {Book 3} by pearjam111

Six half bloods shall answer the call. To thwart the darkness once and for all. To track the path forged by death, One shall save the final breath. With the help of the wizard's kind, Seven objects they must find. ***** Voldemort knows about the half-bloods and needs them in his final plan to live forever. After the death eaters attack Bill and Fleur's wedding, the demigods are split up, leaving it to Percy and Annabeth to assist the golden trio in destroying all the horcruxes. Back at Hogwarts, Jason, Piper, Nico and Will must figure out which objects Voldemort put pieces of his soul into while being studied day in and day out by the Carrow siblings. Their quest was to protect one person, but now it feels like they must protect the entire school. The final instalment of the Babysitting Hogwarts trilogy. [Book 1: Babysitting Hogwarts] [Book 2: Half-Blood Princes] Highest rankings: #1 in harrypottercrossover Disclaimer: I don't own the Percy Jackson and Harry Potter characters. Credit to J.K Rowling and Rick Riordan Disclaimer: I do not support J.K Rowling or her opinions.

Forever-Percy Jackson at Hogwarts by Annabeth_Aelin1682

Set After heroes of Olympus, during half blood prince, Percy Jackson and some of his friends must go to Hogwarts to help Harry Potter against Voldemort in the war. Through their many hardships the two completely different groups have to work together despite their differences to win this war. Will they fight, or unite? Disclaimer; I do own characters they are the work of JK Rowling and Rick Riordan There will be spelling and grammer mistakes but I can't be bothered to fix it.

Percy Jackson Meets Harry Potter by marinatyrell

Percy Jackson just won his own war, and now Chiron wants to send him, Annabeth, Nico and Thalia to a wizard school in England? Not to mention it's called Hogwarts. What kind of name for a school is that? Their quest is to protect some guy named Harry Potter, and stay undercover. No one can know he's a demigod. Well, off to Hoggy-Warts. WARNING: I wrote this when I was twelve, and it has lots of hate towards Harry & Ron in the beginning, even though I love those guys. It's not very good, sensible, or developed! Read at the risk of your own disappointment and disapproval!!

Demigods At Hogwarts by Jessicorn1

Percy, Annabeth, Nico, Thalia and Hazel all go to Hogwarts at the request of Hecate. She wants them to protect a boy called Harry Potter from the evil wizard Voldemort. This is set during the Order of the Phoenix and after Blood of Olympus. The characters and most of the plot belongs to J.K Rowling and Rick Riordan. The artwork isn't mine. Follow the link to see the website. https://www.deviantart.com/marichanx3/art/Percy-Jackson-and-Harry-Potter-chibi-406219775

Mass Collision by demonlover07

Life isn't what she thought it would be. First, she moved to America to hide from her uncle, then her mother dies, then she's trapped in a casino, then she finds out she's a demi-god, then she fights in two wars, then she's sent on a quest with vampires, now-- she's here. Back in time to help fight in a wizarding war for a world she didn't even know existed. Ootp-DH Happy readings! Published: July 29th, 2022 Ootp completed: August 20, 2023 HBP Completed: August 28th, 2024 DH Completed: February 3, 2025 Finished: February 10, 2025

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HP and PJO Fanfiction

Percy Jackson is finally enjoying life. The summer before college starts and his new life in New Rome with Annabeth. But the gods aren't done yet. Percy is sent with two other demigods on a special quest in a parallel universe, where he has to protect someone called "The Chosen One" from a terrible force as evil as Tartarus himself. But Percy is still recovering. Will he be able to protect Harry, finish this quest, and save this parallel universe? Harry Potter is back. Never did he think that he would do an eight year at Hogwarts. Especially after the Wizarding War. Hoping for a normal, unchaotic year fills his dreams, but of course, he wished too soon. Three exchange students from America arrive, and Harry is suspicious. Not only does strange things seem to happen around them, people begin seeing... monsters. Then, one day, Professor Trelawny speaks a prophecy. Will Percy and Harry be able to stop this prophecy? Or will this world perish and the gods along with it?