"Witch Covens and the Grand Masters" is a detailed treatise on the subject of witchcraft written by Montague Summers, exploring in particular their hierarchy, their 'sabbat', and related practices. Augustus Montague Summers (1880 - 1948) was an English clergyman and author most famous for his studies on vampires, witches and werewolves-all of which he believed to be very much real. He also wrote the first English translation of the infamous 15th-century...