The Lesovik (Leshy) or is a male woodland spirit in Slavic mythology who protects wild animals and forests. He is roughly analogous to the Woodwose of Western Europe and the Basajaun of the Basque Country.
Some light reading for Nell. Kalevala is the folk epic of Finland. Finnish was one of the biggest influences on Tolkien's Elvish. The stories are gorgeous, full of action but not as bloodthirsty as their Norse cousins.
The Defense of the Sampo (Sammon puolustus) is a 1896 Romantic nationalist painting by Finnish painter Akseli Gallen-Kallela. The painting illustrates a passage from the Kalevala, the Finnish national epic compiled by Elias Lönnrot in the century.
The origins of iron. The three daughters of Ukko spread from swollen breasts milk white, red and black milk milk. And from that milk poured on the Earth (so says the old Väinämöinen in runo IX of Kalevala) produces various types of iron.