Felmo Ilveroth gives very vague and unhelpful directions to get to Bthung, the Dwemer ruin where he suspects Cyrtus Clagno is journeying to. He says it's in a volcano to the east and then does not clarify if you pursue the topic. Given that the ruin is actually ENE of the city, the directions even lead you to look for the ruin quite far from where it actually is. These directions should really be clarified, or at least the player should have the opportunity to ask around for more clear directions.