[ 9S is none the worse for the wear, just a little stunned. But as the shape of the schoolhouse becomes evident, his jaw drops. ]

That's... wow.

[ The state of technology here and in the Index has been practically nonexistent -- so this new development lights 9S's logic circuits on fire, and he jumps up to his feet in an instant. The better to rush back over to the new building, touching the sides and running around the perimeter for a sign of how it got to be here. He starts talking to himself excitedly. ]

Was that some kind of matter compression device? I've never seen anything like it! The efficiency rate had to be well into the thousands. Maybe that box is still around...

[ His voice fades as he disappears around the back of the building. ]