Claude Lecouteux is a former professor of medieval literature and civilization at the Sorbonne. He is the author of numerous books on medieval and pagan afterlife beliefs, including The Return of the Dead, The Secret History of Vampires, and Witches, Werewolves, and Fairies. He lives in Paris.Roger Dalet, M.D., is a renowned acupuncturist in France and is a doctor on staff at several hospitals. He has written a number of books on this subject, including several translated into English. He lives in France.