In Chremis and Mari mythology (Siberian Eskimo), it was an invisible spirit who appeared with her husband Azren Kuguza. They would pound on the walls of houses, wooden fences, and trees on freezing nights. They would call out to people, but if anyone came out, they would catch them and push them into the snow. If no one would come out, Azren Kuba would sew doors to their frame using an ice needle (what we know of today as ice freezing in the frame of doors, most commonly car doors). During the day, they would play pranks on humans who are outside in such cold weather, like pinching their nose, hitting their heads, or sometimes outright killing them. Azren Kuba means "cold old woman".