The Lesser Key is a grimoire on demonology compiled in the mid-17th century. The text lists out 72 demons of hell in the Ars Goetia, the beginning of the grimoire, and a system for invoking the 72 demons, and allowing the invoker to control the demons if done properly. It outlines an incredibly specific and intense ritual, including diets and prep time. Recently, on the Lunatics Radio Hour podcast we explored how this grimoire has influenced the depiction of demons in horror