My big blogging project for Halloween 2019 is a four-part series taking an in-depth look at a cinematic archetype familiar to all horror lovers: the poltergeist girl. The first part can be read at WWAC; in it, I examine The Exorcist and its troubled heroine Regan MacNeil, comparing her tale to accounts of poltergeists and possession throughout history in the hopes of understanding the cultural concept of the poltergeist girl.