Dan Harms and Christina Oakley Harrington talk grimoires, those illicit books on spirit-summoning; they take in, too, cunning men, folk spells and meeting fairies.

Dan Harms is a librarian and writer from upstate New York. He is known as the co-author of The Necronomicon Files, The Book of Oberon, and Of Angels, Demons, and Spirits, and editor of The Long-Lost Friend. He maintains an irregular blog at http://danharms.wordpress.com.