Subtitled, 'The Secret Tradition in Goëtia, including the rites and mysteries of Goëtic theurgy, sorcery and infernal necromancy', this 1913 book explores the procedures of all of the famous Grimoires, including the Key of Solomon, the Grimorium Verum, the apocryphal Fourth Book of Cornelius Agrippa and the Black Pullet. It includes the rituals of ceremonial magic, the literature, the rituals of black magic and the complete grimoires. This book is the second edition of a work which was originally called The Book of Black Magic and of Pacts.