Explores Sylvia Plath’s enduring interest and active practice in mysticism and the occult from childhood until her tragic death in 1963. Sharing her more than 15 years of compelling research—including analysis of Sylvia Plath’s unpublished calendars, notebooks, scrapbooks, book annotations, and underlinings, as well as published memoirs, biographies, letters, journals, and interviews with Plath and her husband, friends, and family—Plath scholar Julia Gordon-Bramer reveals Sylvia Plath’s enduring interest and active practice in mysticism and the occult from childhood until her tragic death in 1963. She examines Plath’s early years growing up in a transcendentalist Unitarian church under a brilliant, if stern, Freemason father and a mother who wrote her master’s dissertation on the famous alchemist Paracelsus. She reveals Plath’s early knowledge of Hermeticism, how she devoured books on the occult throughout her life, and how, since adolescence, Plath regularly wrote of premonitory