Black magic and demonolatry from the collection of Joseph Appin. The Red Book of Appin is a name many occultists may have heard but few would know much about.
Folklore claims the book was stolen from the Devil as a trick by a young shepherd on whom Satan had set his sights. Montague Summers in his History of Witchcraft and Demonology relates that the book contained a large number of magic runes and incantations for the cure of cattle diseases, the increase of flocks and the fertility of fields” and (in common with many books of magic) its simple possession conferred upon the owner certain preternatural powers. By Summers’ time the book had already been missing for at least 100 years.