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)