Hiisi
Hiisi (Finnish pronunciation: [ˈhiːsi]; plural hiidet [ˈhiːdet]) is a term in Finnic mythologies, originally denoting sacred localities and later on various types of mythological entities. In later, Christian-influenced folklore, they are depicted as demonic or trickster-like entities, often the autochthonous, pagan inhabitants of the land, similar in this respect to mythological giants.