The tales of pure terror, of course, are completely naturalistic in their content, and must stand or fall by their merit alone. But what about the supernatural stories? Can we, the children of a scientific age, give any credence to these medleys of devils, ghosts, and other psychical invasions? There is only one answer: we can and do. We are dealing with stories, not with scientific dissertations. And if, as stories, they have the ring of truth, we'll believe them, as stories, implicitly.("Introduction")