New York: The Viking Press, (1979) dj. Hardcover first edition - A book which remains the best comprehensive guide to Neo-paganism and one which sparked increased interest in the movement. Adler, a practicing Wiccan herself, felt a close affinity to the earth-centered worship of the Pagan ceremonies - this opened to her a spiritual world that did not require a catechism of belief but instead allowed her to suspend rationalism and give herself over to something more akin to art, poetry and music. As preparation for this book,in the 1970s Adler interviewed hundreds of people and gathered a wide variety of documents in order to capture and describe the full range of contemporary and historical Pagan practices, including touring England where she interviewed Druids, witches, and Pagans. Illustrated with photographs. Appendices on rituals, proclamations and resources. Notes, index. xi, 455 pp. ISBN: 0-670283428.

London: Doubleday, (1999) dj. SIGNED hardcover first edition - The author's second thriller, one which brings together several mysteries, past and present. "When young academic Terry Williams goes to a remote corner of the Scottish Highlands, she's simply intending to edit the letters of Catherine McCulloch, tortured and burnt as a witch in the 17th century. Then the body of a young woman is found on a local farm, dumped in the death pit amidst a pile of rotting pigs. She is Donna Fairhead, one of a nearby community of Wiccans - modern day witches. As forensic excavation of the death pit throws up yet more horrors, Terry's work on the letters reveals that there may have been more to Catherine's death than anyone had ever imagined." SIGNED on the title page. 351 pp. ISBN: 0-385408730.