In Leicestershire, England, there is a little cave carved into a sandstone cliff. There is an oak tree growing there, and tatters of thin, translucent cloth can be seen fluttering in the breeze upon its branches. This is the bower of Black Agnes, and should be avoided at all costs.
Where the story of Black Agnes (or Annis) originated is lost to history; some say she is the spirit of an ancient Anchorite who died in the cave, others say she is the remnant of the old goddess Danu, pissed as hell and haunting the cave. Some speculate that she is a remnant of the Hindu goddess Kali, with whom she shares some characteristics. Others say she was manufactured by exhausted parents who needed a good bogeyman to keep their kids out of the woods.
Black Annis is a stooped and aged creature, with sharp iron talons. Her skin is blue, which helps her blend into the night and hunt her favorite prey, which consists entirely of human children. Agnes would lurk outside of a home and wait for a child to wander away into the woods, were she would grab them and haul them off to her bower to eat.
The ancient oak tree outside of Annis’s cave was used to cure the skins of her victims, which she would later drape across her body as skirts and shawls. It is said that Agness carved out the cave herself with her iron-clad claws, and that she still lives there to this day.