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 Kalevala is a 19th-century work of epic poetry compiled by Elias Lönnrot from Finnish and Karelian oral folklore and mythology. It is regarded as the national epic of Finland and is one of the most significant works of Finnish literature. I would like to read this.