The Exorcist by William Peter Blatty

​"Something is wrong with Regan."

​In a quiet rented house in Georgetown, an eleven-year-old girl begins to change. At first, it's just subtle shifts in behavior, but soon, violent outbursts and inexplicable phenomena terrorize the household. Medical science has no answers, and the doctors are baffled.

​Desperate and out of options, her mother turns to a local priest—a man who is battling his own crisis of faith. To save the girl, he must confront an ancient evil that he isn't sure he believes in.

​Read the terrifying novel that shocked the world and redefined the horror genre.