Well, it sure is nice to hear no one's in danger of melting, though it hadn't occurred to her before. While the two of them are engaged in no doubt important assessing of the situation, Calliope is still trying to make heads and tails of these TARDIS shenanigans. Apparently the one they'd lived in, with its marvelous golden glow and gadget-y console and the kind but quite distant and rarely spotted human shape, has gone back... home? And now they're in the Doctor's proper TARDIS. Likely for quite some time to come.

She steps up to the console and inspects it, resting her hands on the edge and looking up at the brightly lit column. "A pleasure to meet you," she ventures in hushed tones, but she can't tell if any of the mysterious sounds around them might be a greeting in return. So she wanders around the console, marveling at the multitude of buttons and screens and one panel that is particularly stunning, like a pastel rainbow, until she comes up next to the Doctor. Hang on a tick, if this is his TARDIS, does that mean this is-- "We're in your universe?" she gasps, staring up at him in wonder. "With moon eggs and luminous oceans and all the stars in all the skies?" For all his splendid stories and kind invitation, she'd never quite managed to believe this day would truly come.