"I see. Fascinating. We do not have such things where I am from."

There are questions, yes. But it would be improper to come out and ask them of a stranger with no preamble, so Spock holds his tongue for now. He's got what he came for, and will follow Caspar around while he finds something for this woman of his.

"I am Vulcan. To be specific, half-Vulcan. My mother was of Earth."