The adventures of Dr. Taverner and Dr. Rhodes take readers across the marshy moonlit fields of nightfall, hunting spirits and keeping watch over souls. Suffering from vampirism? Being stalked by a death hound? Haunted by past life debts? Is your family under a suicidal curse? From across the countryside the patients and their desperate families come to seek treatment for unconventional diseases from an unconventional doctor. His secret? – treating the diseases of the occult with occult methods. This set of short stories rank among the best of esoteric short fiction ever produced. The introduction from Dion Fortune explains that "Taverner" is in fact based on a real person – an adept from whom she learned her own occult secrets and that the events placed forth in the book, although they have been presented as fiction, are all true.