The sample in "Where is Your God Now" is taken from the Mel Gibson film The Passion of the Christ and from William Peter Blatty's The Exorcist.
William Shakespeare | William Laud | Peter Pan | Peter Gabriel | William Blake | William | William III of England | William Morris | Peter Jackson | Peter | William McKinley | Saint Peter | William Howard Taft | William Ewart Gladstone | William the Conqueror | William S. Burroughs | Peter Paul Rubens | William Shatner | William Faulkner | William Randolph Hearst | Peter Sellers | William Wordsworth | William Tecumseh Sherman | Peter the Great | Blue Peter | William Hogarth | Prince William, Duke of Cambridge | William Penn | William Jennings Bryan | William Gibson |
Between 2003 and 2008 he edited several books on authors such as Robert E. Howard, Karl Edward Wagner, Fritz Leiber, Robert Bloch and William Peter Blatty and wrote dozens of essays and articles on literary criticism for several magazines and journals such as Notes in Contemporary Literature, Wormwood: Writings about Fantasy, Supernatural and Decadent Literature and Star*Line: Journal of the Science Fiction Poetry Association.
The castle was also used as the exterior for the fictional American military lunatic asylum in the 1979 William Peter Blatty movie, The Ninth Configuration, starring Stacy Keach.