A secretive criminal faction of witches who hold territory in the deteriorating district of Six Towers. Regarded in Doskvol’s underworld as powerful, strange, and deeply unsettling. The Sisters rarely appear in person, preferring to communicate through intermediaries or—on rare occasions—through the shuttered window of a black lacquered carriage. All of the Sisters dress in fine velvet and wear veils — even in direct meetings, a veil intervenes.