In return, Zulf is going to do his best to ignore the fact that Duke is trying to avoid laughing at him. Let him get away with his dignity, please.

"I see. Caelondia had problems with beasts attacking them as well- that's why they constructed the Rippling Walls all those years ago. They were to act as a defense against anything that might threaten the city. In contrast, my own people simply preferred to avoid the bulk of the problem altogether... Thus our underground lifestyle."