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

The Grandson (Percy Jackson/Harry Potter Crossover)

Reads 341,108
Votes 8,137
Parts 34
Time 5h 45m

Reads 341,108
Votes 8,137
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

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34 parts

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[2] Diverging Paths: Percy Jackson, Harry Potter, and the Chamber of Secrets by ssamkayy

[2] Diverging Paths: Perseus Jackson, also known as Percy, left his first year at Hogwarts School of Witchcraft and Wizardry feeling happy and confident that he had actual friends. However, that was before they seemed to forget all about him. He at least had his brother, Harry Potter, but he too had gotten no letters from their friends. Then one day a small creature wearing a pillowcase showed up in their shared bedroom and told them that they absolutely, positively could not go back to school under any circumstance. Of course, the small creature wearing a pillowcase was resolutely ignored and they went back to school to start their second year anyway. Then things started to go wonky, what with all the strange voices and massive spiders. But then things got even stranger. Water seemed to bend to Percy's will and he kept feeling as if the forest was watching him. DISCLAIMER Note that I do not own anything that was created by J. K. Rowling or Rick Riordan. I only own some of the plot and the occasional person or place that I may create myself. WARNING When people comment mistakes, I come back and I make sure that they're fixed. So, I'm still editing.

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.

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!

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|

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

Guardian of the Golden trio (Under some serious editing) by crazy_mjb

Percy Jackson to the rescue again, but this time, it's not as easy. Not only has his old evil grandfather Kronos Aka the time freak risen again, but he brings along another friend. An all evil all powerful Wizard that goes by the name Voldemort. Percy gets dragged into yet another war of tyrants, and the protection of the boy who lived. But will Percy be able to overcome the sadness and grief of his friends deaths, and win this deadly war? Or will he crumble and fall to the pressure of saving lives? Ok, this story has been edited, or is in the process. There is a second book to this, but i'd advise you not read it yet otherwise you will be thoroughly confused. AND finally, I had a very.... nice chat with Thanatos and got back the following characters. No death threats against death involved... Fred Dumbledore All the dead members from the order of the phoenix and that's it I think. I don't know when the story is set in Harry Potter times, i've just mixed and mashed

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?

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.

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

Annabeth Chase and the Ignorant Wizarding World by AsexualConfusion

(This is the sequel to a story already finished on my profile) In between her new school and getting Percy into college, Annabeth is back for another (sort of) year at Hogwarts. But this time, things are a little different. For one thing, there is now the threat of a wizarding mass murderer looming, and no one seems to believe that he's actually back. Even more, the Ministry of Magic is making out Annabeth to be some sort of mastermind who convinced Harry Potter and Dumbledore to lie about Voldemort's return. For another, the Ministry of Magic has placed one of their own inside Hogwarts as a teacher--- someone fully dedicated to the Ministry and hates half-breeds like Annabeth. Annabeth is supposed to be protecting Harry from Voldemort and other threats, but how can she do that when there's a shrunken pink toad watching her every move?

[1] New Beginnings: Percy Jackson, Harry Potter, and the Philosopher's Stone by ssamkayy

[1] New Beginnings: WARNING!! Story is technically complete but I started editing literally years ago then never finished so the beginning's a little funky! Percy Jackson was adopted at the age of seven by the nastiest family in the world: the Dursleys. He met Harry Potter, the most wonderful person in the entire universe, that same day. Though completely unrelated, the boys were nearly identical, a connection forming between them that would last years to come. The pair would go through life as brothers in everything but blood. Connected at the hip, these seemingly average boys had much more in store for them than they could ever imagine. A note: Percy Jackson doesn't discover anything about the demigod side of his universe until later in the second book. Just a warning. If that's too slow for you, don't read. DISCLAIMER Note that I do not own anything that was created by J. K. Rowling or Rick Riordan. I only own some of the plot and the occasional person or place that I may create myself. WARNING When people comment mistakes, I come back and I make sure that they're fixed. So, I'm still editing.

THE GOLDEN QUARTET ━━━ percy jackson by ryleeoverhere

❝Uh, mom, why are Gandalf and company lounging in our living room?❞ Percy Jackson is about as normal as it gets. Or so he wishes. But instead, he's the son of the god of the sea, has saved the world a grand total of two times, and now has a second evil grandfather? You'd think one was bad, but nope there's another one. Did I mention the wizards? Harry Potter is frustrated. Dementors coming after him, the so called Order of the Phoenix, who won't tell Harry anything, except for one thing. Just one thing. That the grandson of Lord Voldemort himself is going to live with them? [discontinued]

Another Evil Grandfather 《COMPLETED》 by League_to_Legend

Percy had his day planned: eat, spend time with Annabeth and stay out of trouble. I can assure you that nowhere in that plan included getting a visit from Gandalf and a miniature version of himself to inform him that he has another evil grandfather. Great! (note the sarcasm) Taken to Hogwarts for his 'safety', Percy's year looks set to be eventful, again. Not to mention that Moldeshorts knows of his existence, or more importantly his demigod heritage, and wants to recruit him. But first Percy has to get through the year. Can Percy make it through the year without revealing the Gods and demigods' existence? *set in the Order of the Phoenix and after The Last Olympian* *The Lost Hero hasn't happened yet* *Percy is 16* *Harry is 15*

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. *

Expect the Unexpected (A Percy Jackson/Chaos fanfiction) by Blackfur003

*COMPLETED* Percy never expected to die the way he did. He never expected to magically come back to life. He never expected to be in an army. And he never expected to fight another war. But sometimes, you need to expect the unexpected. When Percy Jackson, Son of Poseidon dies, things take an unexpected twist. He meets yet another immortal and BOOM he's alive again. When the demigods need help in the biggest war of all, it's time to fight again (yippee)! Old enemies arise and new friendships are made, the demigods of Camp Half-Blood and Camp Jupiter are back again! *SET AFTER BLOOD OF OLYMPUS, APOLLO IS A GOD, LEO STAYED DEAD, MAY CONTAIN SPOILERS FOR HEROES OF OLYMPUS* *I do not own the Percy Jackson characters, they belong to Rick Riordan. The only thing I own is my OC(s)*

Swords and Wands (a Percy Jackson and Harry Potter crossover) by Kara_Sage

The war was over. At long last, Voldemort was dead, and this time, he won't return. Unfortunately, those who were attending Hogwarts during the war were unable to learn anything. So of course, when Hogwarts sent all those students letters offering to have the re-do their previous year, everyone jumps at the chance, all of them thinking that they would finally have a peaceful, or at least uneventful, year at Hogwarts. It wasn't one. Perhaps Draco Malfoy was partially responsible for that. Perhaps the year was doomed to be chaotic from the day it began. Or perhaps the Fates had a grudge against everyone who chooses the path of a hero. DISCLAIMER: I DON'T OWN PERCY JACKSON OR HARRY POTTER!! ALL RIGHTS FOR CHARACTERS FROM THE BOOKS GO TO RICK RIORDAN AND J.K. ROWLING! ANYTHING THAT BELONGS TO ME I WILL CLAIM IN THE PROLOGUE!

The Other Castellan by astromythical_

Draco Malfoy was hiding. Not from the Gryffindors, not even Voldemort himself. No. He was hiding the truth from everyone. Born in America, being a Half-Blood, growing up with his insane mother, the younger brother to Luke Castellan, the best swordsman in the last 300 years, the first demi-wizard in his year to attend Hogwarts, Lucas Castellan had a lot on his plate. But he couldn't tell anyone, or else both worlds would be destroyed, and that would be his fault. And he wouldn't want that, would he? Join Lucas(or Draco, if you prefer), as he undergoes his perilous and very much annoying quest to protect "The Boy Who Lived," otherwise known as Harry Potter. ~~~~~~ The current word count is 100 521 as of Chapter 36. ~~~~~~ Rights to J.K. Rowling and Rick Riordan. Cover made by me. I only own the plot and some OCs.

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.

Percy Jackson goes to Hogwarts by wisegirlthings1821

Percy finds out the wizarding world is real. Now he must go to Hogwarts and compete in the Quarwizard Tournament representing Camp Half Blood while trying to keep Harry safe. There's just one problem: making sure that the wizards dont find out about the godly world. And of course, there's another thing: the prophecy says that Voldemort and a child of Gaea will rise once more. Who will win the competition? Will Percy keep his secret safe? Will the Dark Lord come back? Who is this child of Gaea? #1 in #Halfbloods!!! (February 22, 2022) #1 in #Demigods!!! (June 13, 2021) #3 in #Ronmione!!! (August. 19, 2021) #11 in #Solangelo!!! (January 12, 2021) #19 in #Percabeth!!! (February 19, 2021) First Part realeased: 14 June 2020 Disclaimer: All rights go to JK Rowling and Rick Riordan. Also this is a continuation of the amazing piece of "Percy Jackson goes to Hogwarts" by @just-shut-up-already user in Wattpad, with a few changes on the story.

When Wand and Sword Collide || Percy Jackson/ Harry Potter by galaxiasgreen

Percy Jackson wakes at Hogwarts. Harry Potter wakes at Camp Half-Blood. Neither know who they are, where they are, or where they come from - but when the line between demigod and wizard blurs and a sinister prophecy arises, Harry and Percy must unite with Hermione, Ron, and Annabeth before it's too late. [WINTER 2023 UNDERGOING REVISIONS] --- Harry and Percy swap roles story, with an original plot and prophecy! Altered Timeline, taking place in 'modern day', after the war with Gaia assuming everyone survived (as this was written pre-HoH and BoO) with no canon from MCGA or ToA, and around the start of Harry's sixth year, where no events of HBP have occured (i.e. Snape is still Potions Master and Draco has not been chosen to kill Dumbledore). Percy and Harry are around the same age. Chapters alternate between 1POV for Percy and 3POV for Harry. [Luth art by Rowen Satell.]

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[2] Diverging Paths: Percy Jackson, Harry Potter, and the Chamber of Secrets

[2] Diverging Paths: Perseus Jackson, also known as Percy, left his first year at Hogwarts School of Witchcraft and Wizardry feeling happy and confident that he had actual friends. However, that was before they seemed to forget all about him. He at least had his brother, Harry Potter, but he too had gotten no letters from their friends. Then one day a small creature wearing a pillowcase showed up in their shared bedroom and told them that they absolutely, positively could not go back to school under any circumstance. Of course, the small creature wearing a pillowcase was resolutely ignored and they went back to school to start their second year anyway. Then things started to go wonky, what with all the strange voices and massive spiders. But then things got even stranger. Water seemed to bend to Percy's will and he kept feeling as if the forest was watching him. DISCLAIMER Note that I do not own anything that was created by J. K. Rowling or Rick Riordan. I only own some of the plot and the occasional person or place that I may create myself. WARNING When people comment mistakes, I come back and I make sure that they're fixed. So, I'm still editing.