[That's good, really, because it's the description of the summit that catches his attention - both because of the idea itself just being one that appeals to him (who in the Underground hasn't wondered what Mt. Ebott looks like from the other side?) and also because she just seems so damn excited about it.]

You know I'd love to see it, sweetheart - it sounds beautiful, for one thing.

For another, it sounds like it's important to you.

[He shrugs after that's out there, though he still seems pleased with the entire idea of it.]

Really, though. The entire thing sounds wonderful - though I think you were right, I'm going to be staring at the sky so much it's going to be hard to get me to stop for a while. People talk about missing the sun sometimes, while they're in here - I've never seen it, and I am looking forward to it, but I'm guessing it must be pretty great if it's worth missing like that.