These allow you to read them and learn various Rune recipes. You can then take any weapon, like a Longsword, or some tools to the Rune Forge and apply up to three Runes to them. It costs essence ...

The inscription on the Forsa Ring–or Forsaringen in Swedish–details some of the hefty sums that were part of the Viking economy ... ring contains almost 250 runes, or letters in the alphabet ...