Karen Ralls, Ph.D. is the author of Medieval Mysteries: A Guide to History, Lore, Places, and Symbolism from Ibis Press. She is a highly regarded medieval historian who obtained her doctorate fromthe University of Edinburgh and a past deputy Curator of the Rosslyn Chapel Museum Art Exhibition (1996-2001). She has appeared in TV documentaries for The History Channel, Discovery, and National Geographic. Dr. Ralls is an International conference speaker, sacred sites tourguide, and workshop presenter. Visit her at www.ancientquest.com.