He hums thoughtfully, storing that in his mind - a wizard could come in handy afterwards, against the Rulers. He doesn't question the 'magic' bit - clearly, it existed, because hey! They were trapped in a prison of magic right now!

"Interesting." That's all he says, before he closes his eyes and turns away. And somehow manages to fall asleep, even with the low murmur of conversation within the dome, and the muted battle sounds from outside.