The Seven At Hogwarts. Percy and Nico are sent undercover to a school of magic and wonder, Hogwarts. Later on the rest of the seven come and it's utter chaos from there... You need to read it to experience it.

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

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.]

Hera is infamous for meddling in other people's business. But when she takes it too far, this can lead to nothing good... Prophecies will be made. Quests will be planned. Two magical worlds will finally meet. A Harry Potter and Percy Jackson Crossover *** While this is a Harry Potter/Percy Jackson Crossover, it will still make sense reading it having only read one of the series. *** WARNINGS: swearing, death, spoilers, consumption of alcohol. No self harm or suicide. (We are also disregarding the actual events of Order of The Phoenix. No Umbridge in this story!) All characters belong to Rick Riordan and J.K. Rowling (Started: 1/11/17) (Finished: 7/5/18) (Ranks: number one in #pjofandom)