The mid-twentieth century saw a resurgence of popular occultism in Europe and North America, including an interest in witchcraft. Chief among these was Wicca, a recension of ceremonial magic and nature worship advanced by Gerald Gardner and Alex Sanders, now widely regarded as a religion. However, lesser-known traditions of the witch-current thrived the shadows, having older historical roots, and linked to a body of practices - witch-bottles, knotted...