"Mnh." She agrees, albeit rather mutely. "...if Doctor Herbert has a whole building, that's a good sign..."

The echo appears more clearly this time, and she frowns. Pausing, she glances up at Papyrus.

"...Did you hear something..?" Maybe her ears are ringing. Or have reflections in them?? She was just locked in a bunch of mirrors, so maybe sounds are going to be reflecting for a while?

That totally made sense in her head.