In Chinese legend, there is a fearsome, terrifying monster known as a wandering ghost.
Wandering ghosts are demons with nowhere to go. They are the souls of people who were not given a proper burial after death. They were not laid to rest in ancestral tombs, nor were they offered sacrifices or remembered, so their resentment and dissatisfaction grew ever deeper.
Wandering ghosts are usually deathly pale and frightening, and move with great speed and agility. They appear at night or in remote places, seeking the souls of living humans as sacrifices. Once people are touched by a wandering ghost's presence, they may be disturbed and harmed by it, or even have their souls devoured.