Question: What is the use of exorcism in the Roman Catholic faith for those who are believed to be the victims of demonic possession, that has been depicted in a horror novel by Paul Tremblay?
Sentence (from "Shrine (novel)"): After Alice performs several "miracle" cures in front of the tree, and claims to have seen the Virgin Mary there, it starts to be treated as a Lourdes-like shrine by Catholic pilgrims. St. Joseph's priest, Father Hagan, however, senses spiritual danger.
Relevant evidence: No