What the Dread Doctors did in bringing back the Beast of Gévaudan threw the world into imbalance and tore open a rift into the Underworld called an Orpheus Door. Allison Argent is brought back and she alone can find a way to close the door and prevent the world from descending into darkness.

Dudley Dursley reaches out to Harry for answers after he notices his daughter is using magic. *Artwork is mine from when I was kid and super obsessed with HP.