|Dates||Late 1200's (burned at the stake)|
Agnes was a hermit nun... And as mad as a hatter. Made it her business to undo curses.
Sister Agnes was a rogue Spanish nun and hermit witch who was obsessed with undoing curses. 700 years ago Agnes locked herself away after having visions of darkness. After decades in exile she would produce the Book of the Damned, a dark magic spell book made from her own flesh and blood, capable of creating and undoing any kind of damnation there is. Soon after the book's completion, the Catholic church hierarchy burned her alive at the stake for heresy.
Charlie tells the Winchesters the story of the Book of the Damned: 700 years ago, a nun locked herself away after experiencing visions of darkness. After decades in solitude, she emerged with the book, with pages made from her skin and written in her blood.
Rowena relates Agnes's story to Charlie Bradbury, explaining how she made it her life's work to learn how to undo curses. She discovered that to cure one curse, Agnes had to know how to inflict another. A balance is required in any struggle between good and evil; a curse cannot be without its cure. The "cornucopia of curses and satanic visions" led to her being executed by the church hierarchy, who wouldn't abide a rogue nun. Charlie remarks that Agnes was ahead of her time.
While interrogating Eldon Styne, he reveals that Agnes used a spell to render the book eternal, making it impossible to destroy.
While attempting to recruit witches for her new Mega Coven, Rowena tries to entice two witches at a lunch to join her by revealing she is in possession of the Book of the Damned, written by "crazy Sister Agnes", which is making her a force of nature.
Rowena reveals to Jack that Agnes, in her captivity, watched her friends and only companions starve and perish. She thus created a spell called the Magice Necromantiorum that could bring her deceased friends back to life.