The Grandson (Percy Jackson/Harry Potter Crossover) - Steel Black - Wattpad

The Grandson (Percy Jackson/Harry Potter Crossover)

Reads 345,316
Votes 8,188
Parts 34
Time 5h 45m

Reads 345,316
Votes 8,188
Parts 34
Time 5h 45m

The war was over, Gaea was back in the dust, and Percy could finally get some well needed rest. He couldn't wait to spend the rest of his life in peace, living in the Roman town with Annabeth, occasionally visiting the rest of his friends. It was going to be a good life.

Or maybe not.

A new threat is brewing and it doesn't look like one that can be solved by just ignoring it.

When a bunch of wizards come to Percy's house to tell him that he had yet another evil grandfather, things turn upside down. He's dragged back into the hero life by his ankles.

Meanwhile Harry is also having a hard time. There's been many things on his mind this past year.
-A Defense Against the Dark Arts teacher with a personality like poisoned honey
-A venomous, disgruntled house-elf
-Ron as keeper of the Gryffindor Quidditch Team
-Malfoy's annoying antics
-The looming terror of the OWLs

...and of course, the growing threat of He-Who-Shall-Not-Be-Named and his newest addition to the family. A grandson named Percy.

This story takes place after Blood of Olympus and during Order of the Phoenix. How will things end for The Boy Who Lived and The Savior of Olympus?

....

Cover by me
[began - January 31, 2017]
[last updated - May 18, 2021]


R A N K I N G S
#2 in "demigods" [May 2020]
#12 in crossover [April 2021]
#40 in "percyjackson" [August 2020]



I obviously don't own anything except for the plot. The characters all belong to Uncle Rick and J.K. Rowling.All Rights Reserved

Table of contents

34 parts

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Hidden Wisdom and Wizards || PJO x HP by alternativekitkat

**Sequel in the Wisdom and Wizards series** If you haven't read the first it's Saving Wisdom and Wizards! ~~~ Everyone believes that Percy Jackson is for once thriving. Him and Annabeth are happily married, and they have a lovely place in New Rome. It's been months since they helped Harry, Ron, and Hermione save the wizarding world from Voldemort, and Percy and Annabeth have retired from world saving duties since. At least... that was the plan. Now? Harry's scar started to hurt again and he's been receiving dreams of some old dirt lady, reiterating words that he doesn't like to hear. Hermione, Ron, and Harry now have to track down a certain two demigods who don't want to be found, and are doing everything they can to not be found.

Percy Potter(completed) by YourNewFather007

Percy Jackson comes to Hogwarts after given a Quest, that Albus Dumbledore and Chiron have agreed on. He is a teacher for a new subject, Muggle Fighting. Despite nobody knowing he was preparing them for an ultra war, which will unite the DemiGods and Wizard/Witches. Harry Potter is in his fifth year of Hogwarts. Things are at the beginning of the approaching war. He hears about a new subject that every fifth, sixth, and seventh year is required to take. He wonders who the professor is, and more importantly, why they needed it. *Disclaimer I don't own any of the characters. All thanks to Rick R. and J.K. Rowling. *

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

Collision Course (Percy Jackson and Harry Potter Crossover) by goodness_graecus

Harry stared at me. "You're just like him. Looks like you do take after your uncle," He sneered at me with an undertone of sadness," He killed my parents and tried to kill me, too. Is that what you wanted to hear? When I was eleven, eleven, He came back as one of my professors. He tried to make himself come back. But I beat him. Then," He pointed at Ron,"His little sister was possessed by the man who ruined my life. He almost got back, but we destroyed the diary and saved the muggle-borns. Then, I find out t hat my godfather was an evil mass murderer but he was actually innocent. Then, Ron's rat turned out to be Peter Pettigrew, who was Volde-" "Harry, no! You can't say his name!" Hermione burst in. She looked afraid. "We'll have to face the death eaters and we're not ready for that." "'Death Eaters'." I said in disbelief. Trying not to laugh, "Who would want to eat Thanatos?" ************* This takes place after Blood of Olympus, before The Hidden Oracle, and during Deathly Hallows. It is mostly in Harry's and Percy's point of view but a few others are thrown in. I worked really hard on this and I really hope you guys enjoy. The first couple of chapters are about 500 or so words but they get longer, I promise. If there are any spelling mistakes or grammar mistakes, feel free to comment them down below. It is an alternate ending to Deathly Hallows. Please don't kill me when you read the bonus chapter/ epilogue. In your demigodishness and all that, stay potterheads. Love you guys! Thanks for reading!

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.

Saving Wisdom and Wizards || PJO x HP by alternativekitkat

Being a half-blood isn't easy, and it doesn't get easier. Of course, fighting in two wars and being drafted into a third doesn't help. But there are those lucky ones. The ones who survive and move on, have families, education, life. Percy Jackson is not one of them. He's a demigod and apparently, a very powerful and hated wizard. Percy is tasked with helping the Wizard World, and protecting Harry Potter, which is hard to do when Harry wants nothing more than to kill him. ~~~ *Completed* Sequel is up! Check out Hidden Wisdom and Wizards :) ~~~ Rewrite is also up! Same title, but with gray cover. I highly recommend checking that out as well! ~~~ Highest Rankings: #1 Percy Jackson #1 Percabeth #1 Annabeth Chase #1 Wizards #1 Dark!Percy #1 Heroes of Olympus #1 Rick Riordan #1 PJOHOO #2 Crossover

Percy Jackson: Twins by AhsokaTanoJedi

It's been a year since the Second War, yanknow, the awakening of none other than the lady herself, Queen Dirt-Face. Percy has been living a happy life, until another great Prophecy is told. Percy gets thrust into another war, but this is no ordinary war, it's a war of revenge against him and this boy in London. Percy is forced to flee, for if he stays any longer at Camp, every camper will Perish. It's been about two years since they won their war, and defeated He-Who-Must-Not-Be-Named. Harry Potter is the current headmaster at Hogwarts, much to his displeasure. He married Ginny last year and is currently very happy, that is until The Ministry of Magic decide to show up and drop a bomb on Harry. (Not literally) Ron and Hermione try to help Harry cope with the information he is told, however they can only do so much to help their friend. What will happen, when two brothers, separated at age one, do when they find out about each other? What will happen, when wizards meet Demi-Gods? What will happen, if Percy's and Harry's enemies team up, to get revenge on them who defeated them? Read to find out. Disclaimer, I only own the plot line and story. Everything else goes to Rick Riordan and J.K Roweling.

Myth and magic by dutch_daydreamer

When Sally Jackson gets attacked, Percy Jackson finds out about a secret Sally had been keeping about her side of the family. He finds out his grandfather is looking for him. Old friends of Sally take Percy into a world filled with magic. He joins Harry Potter and his friends in their fifth year at Hogwarts. But where Percy goes, trouble follows. Which basically means: monsters. Percy prommised to help and aid the wizards in their battle against Voldemort. But how is one demigod going to make the difference.. ------------- I don't own the characters of the story, they belong to Rick Riordan and JK Rowling. The cover isn't mine as well. So credits to them. The plot does belong to me. -------------- Hope you enjoy the story ! Love every single one of you 💙 -L #1 Percyjackson |6-2-2021| #1 Hogwarts | 14-6-2021|

Grandson of Voldemort (Discontinued) by gr33n_b3ans

Disclaimer: I was young and dumb when I wrote this and this story is an abomination but Im keeping it up for the memories. Perseus Achilles Jackson just wanted a normal life. He wanted to settle down with Annabeth, graduate high school, and go to college in New Rome. But when a group of oddly dressed people shows up at his door, he has to go to England, become friends with the wizards while keeping the demigod world a secret, and save to world. Again. DISCLAIMER: I DO NOT OWN PJO OR HP THEY BELONG TO JK ROWLING AND RICK RIORDAN

Babysitting Hogwarts {Book 1} by pearjam111

"You can't seriously expect us to go to a school for magic!" "You want us to what?" ~~~~~ Dumbledore sends out a distress call to the demigods. Voldemort is back and the gods made the mistake last time to refuse the wizard's call. Chiron sends Nico, Will, Thalia and Percy to go protect Harry Potter, the targeted wizard who Voldemort wants dead. The demigods must protect and defend Hogwarts from the dark wizard, but keep their identities as demigods secret at all costs. No one must know because it could put them in danger. But the golden trio keep persisting that the new students are up to no good. They make the secret terribly hard to keep. Contains Percabeth, Solangelo, and others ----- I don't own Percy Jackson or Harry Potter, credit goes to Rick Riordan (who is amazing) and J.K Rowling (who I do not support). Also, the first few chapters are bad. Keep reading, it gets a lot better. Most Impressive Rankings: #1 in Solangelo, #1 in Solangelo (May, 2021) #1 in Percabeth, #4 in Percabeth, #2 in Percabeth #2 in Crossover #9 in Percy Jackson #1 in Nico, #1 in Nico (April-May, 2021) #1 in Annabeth #1 in CampHalfBlood #1 in Gods {Book 2: Half-Blood Princes - Completed} {Book 3: To Thwart The Darkness - Completed} Credit to @-Is-A-Belle- for making the amazing cover.

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Sequel in the Wisdom and Wizards series If you haven't read the first it's Saving Wisdom and Wizards! ~~~ Everyone believes that Percy Jackson is for once thriving. Him and Annabeth are happily married, and they have a lovely place in New Rome. It's been months since they helped Harry, Ron, and Hermione save the wizarding world from Voldemort, and Percy and Annabeth have retired from world saving duties since. At least... that was the plan. Now? Harry's scar started to hurt again and he's been receiving dreams of some old dirt lady, reiterating words that he doesn't like to hear. Hermione, Ron, and Harry now have to track down a certain two demigods who don't want to be found, and are doing everything they can to not be found.