The spirit of the bath house, the bannik flits amongst the dense
steam of the sauna bath perfect cover for one of the typically
elusive fairy folk. It lives in Russia and the Baltic countries,
this being where sauna baths were first invented, and although
sometimes glimpsed through the clouds of vapor, it is more often
felt than seen, and its touch on one's naked back is a significant
omen: one of good fortune if it is a caressing stroke, but one of
ill luck if he scratches.