In 1953, Gardner initiated a young woman named Doreen Valiente into the coven, and she soon went on to become the new High Priestess. Around the same time, Gardner composed the coven's Book of Shadows, a workbook of rituals, although he claimed it was of ancient origins. Valiente's influence on the developing religion was immediately felt. Gardner's early conception of religious witchcraft closely paralleled the system outlined by Margaret Murray, including a patriarchal structure which focused almost exclusively on the worship of Murray's "Horned God". However, under the influence of Valiente, emphasis soon shifted to emphasize the role of the goddess, bringing Gardner's witchcraft in line with pre-Murray sources like Charles Leland's "Aradia". Gardner was also reportedly upset when Valiente recognized that significant portions of his rituals had been adapted with very little change from those developed in Aleister Crowley's tradition of Thelema. Gardner asserted that he had simply used Crowley's rituals to fill in the rather bare bones rituals he had been given by the New Forest coven. Nonetheless, Valiente helped Gardner rewrite the Book of Shadows, removing much of what she saw as "Crowleyanity", and adding sections such as the Charge of the Goddess, which she adapted from "Aradia" in poetic verse. Valiente and Gardner later had a falling out when she became frustrated with his repeated attempts to gain publicity for the coven, and when he tried to impose the so-called "Wiccan Laws", something which he claimed were used by the witch-cult but which Valiente believed he had simply made up. She left, along with several other members of the Bricket Wood coven, to found their own. The Bricket Wood coven continued on with members that included Jack Bracelin, Dayonis, Frederic Lamond and Lois Bourne.