Question: A Head Full of Ghosts is a horror novel by Paul Tremblay, themes include elements of which term used for the use of exorcism in the Roman Catholic faith for those who are believed to be the victims of demonic possession?
Sentence (from "A Head Full of Ghosts"): The story is told from the point of view of Marjorie's eight-year-old sister, Merry.
Relevant evidence: No