Crossovers
39 stories
Another World: A PJO-KOTLC Crossover by Mermaidpancakes2
Mermaidpancakes2
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Percy Jackson has finally caught a break... Or at least that's what he thought. After the war with Gaia all he wanted was to finish off high school in New York and be with his girlfriend Annabeth. Yet, he managed to end up on another wild adventure. Sophie Foster was relieved. She and her friends had won the long battle at last. The Lost Cities were finally back to normal... But Sophie should've known her story wasn't over yet. And an eventful trip to New York proved it. Two worlds... One story. Let the chaos begin... ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Spoilers for Percy Jackson, Heroes Of Olympus, and Keeper Of The Lost Cities. But not Trials Of Apollo! #5 in Kotlc 2025 #1 in GreatStory 2025 "BEST CROSS OVER IVE EVER READ!!!!!!" -Skittles_365 "I love your KOTLC x PJO crossover like my lifeline." -Booklover133534
Golden Stars by Advikachild42
Advikachild42
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This is a Harry Potter and Keeper of the Lost Cities crossover. When Sophie, Keefe, Fitz, Biana, Tam, Linh, and Dex go to the Wizarding World for a week of mixing magic, things get complicated when the Neverseen and Deatheaters team up to re-empower one of the most dangerous villains in all of the Wizarding World's time. So all of our favorite heroes come together to try and stop the possible ruin of both their worlds, but will they have what it takes to risk their own lives for an unknown world? Or will the most notorious villain in the Wizarding World come back to ruin it all? DISCLAIMER: If you haven't read all the Kotlc books till Legacy, then there will be spoilers! Also,if you haven't read the Harry Potter Books till The Goblet of Gire, then you will get spoilers there, too!
Sophie Foster and the Triwizard Tournament by soccerloverrr16
soccerloverrr16
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Mr. Forkle is stressed. He found out that there is a species called Wizards, and the Elves have no idea who or what they are. Since Sophie Foster has lived with humans, Forkle sends her to the Forbidden Cities on a solo mission to enroll at Hogwarts. Sophie must watch out for things she has never seen, and watch out for those who want her dead. Harry Potter is happy. He and his friends are having an amazing life, now that they defeated the Dementors and helped Sirius. But Harry is now entering his 4th year at Hogwarts, and receives a letter saying to protect Sophie Foster from Voldemort. This story is taking place when Sophie is 14, but after Legacies, and after book 3 of Harry Potter. (Voldemort is also back, and this story is like the 4th Harry Potter book). Enjoy!
Bridging the Divide by galacticstorysleuth
galacticstorysleuth
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A KotLC/Riordanverse fanfic Need to have read: PJO, HoO, KotLC books 1-8.5. It's reccomended to know the Kane Chronicles for one of the easter eggs, but not required. Will be some spoilers for that, though. Keefe ran away. He's still running, in fact. Until he gets to the large statue of a goddess, which seems to be made out of pure gold. When he wakes up, the campers and other residents of Camp Halfblood accept him into the group, not knowing that he isn't mute, isn't human, shouldn't be there. Told from four perspectives, this story tells of the downfall of the Neverseen and the rise of a new era of peace.
CWH 2 by galacticstorysleuth
galacticstorysleuth
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This is the second book in the Camp Wildheart series, and the story is continuing with the next summer. A disappearance, an old-new enemy, and food that should be illegal? Just another summer with these heroes. Add to the confusion a reevaluation of emotions and a brain-fried elf, a bag of woodland creatures, and a bunch of mortals for a fun, chaotic summer!
Percy Jackson: Grandson of Voldemort by Poke_Master57
Poke_Master57
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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
KOTLC and PJO meet each other by Zorpo4ever
Zorpo4ever
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Will the two groups be able to combine and fight the bigger evil together, or will they separate again? The elves didn't know that there were demigods in this world, and the demigods know that the elves existed either. For the two being awfully similar in personalities and appearances, will they have trouble trusting each other, or will they bond on cierten things? Stay tuned and find out more in the upcoming chapters, drama, and problems. Hope you all enjoy this!!! 😃😉 The Percy Jackson characters all belong to Rick Riordan and all of the keepers of the lost cities characters belong to Shannon Messenger (I think that's how you do it?) Welp I hope so.
Camp Wildheart by galacticstorysleuth
galacticstorysleuth
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A fanfiction of Keeper of the Lost Cities and the Riordanverse You should be well versed with the Riordanverse, except ToA. This writing is based so that it does not depend on knowing the whole of the series. Still, it is reccommended to be familiar with the KotLC series. The heroes of the elvin world are finally getting a vacation. If you could call corraling a bunch of demigods, magicians and enerhji at a summer camp a vacation, that is! Sophie and Keefe most definitely have their hands full. Luckily, they have some cool tricks of their own. When it turns out their defeated enemies are slightly less defeated than they thought, all of their grove will have to join together and trust their friends, new and old, to take down the evil that is brewing nearby. Not your normal summer camp!
Adrift (KotLC PJo Crossover) by HannahCaudill7
HannahCaudill7
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What would happen if Sophie Foster and Percy Jackson switched spots? With Kronos rising and waging war on Olympus, Sophie struggles between trying to return to the Lost Cities and helping the demigods in their battle. Percy Jackson makes a bad first impression on the Lost Cities and tries to get back to New York before the Battle of New York while fighting the Neverseen.
How I met you again 1: Childhood Friends || A PJO and KotLC crossover by arandomgurlie753
arandomgurlie753
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The war with The Neverseen is over for Sophie and her friends. The war with Gaia is won for Percy and the seven. Both groups thought it was over, but what happens when Sophie meets her childhood friend Annabeth Chase? Will they bond again? Find a new and old friend on the way Or even fight a new and an old villain who is trying to take over both worlds? Or maybe all three?