Sprite

A sprite is a mythical creature from Afbarkeean folklore. They were commonly described as small humanoid spirits that are invisible to people most of the time. Beliefs about sprites and their attributes varied widely across different cultures.

Night-sprites
Night-sprites were a type of sprite that was associated with nightmares and sleep paralysis. They were typically considered to be much more malevolent than other types of sprite.

Tunguu
In Tunguu, sprites were associated with psychedelic mushrooms. It was commonly believed that they cultivated the mushrooms and would curse anyone who stole them, thus explaining the psychoactive effect of ingesting the mushrooms. Unlike most other cultures, the Tunguun seemed to consider sprites to be real beings with material bodies, and attributed their invisibility to the fact that they lived in holes in the ground and were very wary of humans.