In Norse mythology, fairy tales, and sword and sorcery fiction and role-playing games, a dwarf is a sprite, a member of a humanoid race, much like humans, but generally living underground or in mountainous areas. Here they have heaped up countless treasures of gold, silver, and precious stones, and pass their time in fabricating costly armor. They are famed miners and smiths although, like humans, they specialize in any number of trades. Dwarfish smiths created some of the greatest and most powerful items of power in Norse mythology, such as the chain which bound the Fenris wolf.