The four demigods - Annabeth Chase, Nico di Angelo, Percy Jackson, and Thalia Grace - are enlisted on a quest to go undercover at Hogwarts and help figure out what is disturbing the balance of magic. Relationships are tested, secrets are uncovered, and deities are discovered. * SPOILERS FOR THE PERCY JACKSON SERIES * SPOILERS FOR THE HEROES OF OLYMPUS SERIES * SPOILERS FOR THE HARRY POTTER SERIES * This fanfiction was written before the release of, 'The Cursed Child,' and, 'Trials of Apollo,' (TOA)

Nico is deaged and sent back in time, becoming part of the wizarding world while he's still young. Will Hecate's plan work despite his lack of memories? For the sake of this story, Percy Jackson takes place during the same timeframe that Harry Potter does (canon pairings, complete)

Sally and Paul died in a fire while Percy was at camp. Tony finds out that he has a long lost sister and a nephew. Tony takes in his poor nephew. After some looking in at this kid he realized that he is not your normal kid. What will happen? *Alternate before Civil War and in the middle of TOA* ***I DONT OWN THESE CHARACTERS ONLY THE PLOT. THESE CHARACTERS ARE OWNED BY RICK RIORDAN AND MARVEL. THANKS ENJOY***** Slow updates

Percy Jackson and Annabeth Chase have survived countless monsters, gods, Titans, and finally their most difficult opponent of all--high school, though not without their fair share of mishaps and unexplained absences. All they want to do now is enjoy their summer before tackling their next adventure; college. After a series of strange encounters, however, they realize that this summer is going to be just as eventful as the rest. Meanwhile, Earth's Mightiest Heroes are fractured. Tony Stark and Steve Rogers haven't spoken in months, and even with new members, the team is suffering. They know that something is coming, but the question is; will they reconcile in time to thwart it? With the appearance of old friends, new enemies, and peculiar allies, the Avengers are forced to accept that the world is even bigger than they thought. A/N: Important information such as the timeline and other details provided in the beginning author's note.

Hi! This is a crossover of Harry Potter and The Heroes of Olympus. THis happends after the war with Gaea and Voldy. Hecate ask The seven, Will, Nico and Calypso to go to Hogwarts. She thinks there is a chance that Voldy and Kronos might be helping each other to rise again. Have fun reading! -Mika PS: I do not own any of J.K Rowling or Rick Riordans character Warning: There will be violence and blood

"Six half-bloods shall travel to my land. There they must try and locate the Doors that lead to the Underworld and close them," the goddess announced. Nico regarded her coldly. "And why do these Doors bother you so much? Isn't this supposed to be a matter handled by Hades?" "That, Nico di Angelo, is something you have to figure out yourself." -------------------------- Time Period: Happens after Blood of Olympus Harry's fifth year at Hogwarts Changes: Leo is still at Camp Half-Blood and not with Calypso. -------------------------- Harry Potter and Heroes of Olympus belong to J.K Rowling and Rick Riordan. The characters, some of the lines and some of the plot belong to them.

Unfortunately after Tartarus, Percy and Annabeth just can't catch a break! On Chiron's orders Percy, Annabeth, Nico and Thalia are sent to Hogwarts to try and protect Harry Potter! Join them as there's jealously, fighting and betrayal! Harry is smitten by Annabeth, Hermione is falling for Percy, what will happen to our favourite couple! Meanwhile Nico and Thalia just happen to be eyeing each other recently!

After missing her sixth year due to mysterious "family issues," Persephone Jackson returns to Hogwarts for the 7th-year redo. No one knows she's a demigod, daughter of Poseidon - and she intends to keep it that way. But when Greek monsters begin to stalk Diagon Alley and creep into Hogwarts grounds, Percy must secretly fight them off while juggling NEWTs, wizard gossip, and a particularly arrogant Chosen One. Harry Potter, recently turned 18 and still recovering from the war, doesn't trust the new girl everyone suddenly loves. Why does she seem to know everything about magic - yet act like she's hiding something? As the year progresses, Percy's two worlds - wizard and demigod - threaten to collide. And if she slips, she could doom them both. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ If you've read this far, this story is AI made. This was for a project in school, based on how well you can include detail. So, I decided to upload it, because, why not? Enjoy! HOLY MOLY, #153 in Percy!

[HP/HOO Book 1]-Trilogy now completed This book has undergone heavy editing. The grammar and spelling is now up to scratch and I have not made any major changes to the original plot. The seven and Calypso go to Hogwarts, what will the golden trio think of them, how will the demigods like the wizards, how will the wizards like the demigods? All is fine. Or as fine as it can be for a bunch of demigods and wizards Until a new enemy who wants revenge takes two of the most important members of the team hostage and makes them do what he tells them to. How will they defeat this terrifying enemy? disclaimer I do not own Percy Jackson or Harry Potter. I only own the plot Creds to the artists of the art used on this cover. I edited it all together.