On Friday evening, December 6, I’ll be appearing at Pandemonium Books and Games in Cambridge, Mass, in conversation with Peter Bebergal (author of Strange Frequencies: The Extraordinary Story of the Technological Quest for the Supernatural; Season of the Witch: How the Occult Saved Rock and Roll) for a discussion of the revised and expanded edition of his Appendix N: Weird Tales From the Roots of Dungeons & Dragons. Time and details TBA.