The Matriarch seems pleased at the thought put into this meeting, at least. Her smile may be a little frightening, but perhaps that's only her face? Arachne tend not to be the most comforting of Monsters.

A nod. "I am interested in new ideas. New concepts. Your people move freely up there, on the surface, yes? Despite the Cwyld. You made it this far without casualties." The last sentence is more of an assumption than anything, but she assumes it will be refuted if it's wrong. "I want to know how, what tricks you have to combat the infection. I am curious how you live up there."