Kaduk

An unclean spirit in Belarusian and Polish folklore, responsible for diseases and seizures (the personification of epilepsy). This is one of the oldest and oldest spirits.

According to some reports, it looks like a haystack or a pile of moss, which can only scare with an unusual movement. According to other sources, the Kaduk is a beast with a huge lumpy head and a wide throat up to the ears. His white teeth shine in his mouth, and his tongue is red as fire, and it seems that he is ready to swallow a person whole, with bones and guts. He is so scary that it cannot be said that he is humanoid. He lives in the darkest forest, moreover, in the most swampy swamp.

There is a version that they are like a separate small people, a special subspecies of evil spirits, the main difference of which is loyalty to a person.