The Detaching Lady or 'Hantu Penanggal' is a ghost of Southeast Asian folk mythology. It is a variation of the vampire myth found in the Malay Peninsula.
According to the folklore of that region, the Detaching Lady is a detached female head capable of flying about on its own. As it flies, the stomach and entrails dangle below it, and these organs twinkle like fireflies as the Detaching Lady moves through the night.
