Cthonica is a simple guide to Arthurian magical practice for both individuals and groups. It includes chapters on lore, meditation, spellweaving, pilgrimages, and the formation of an Arthurian Court. Simple, clear instructions provide a path for the seeker to contact and invoke the power and guidance of one of the six Queens of Camelot - Guinevere, Nimue, the Lady of the Lake, Kundry, Morgan, and Dindraine.