A few decades? The Balladeer doesn't look much older than a few decades, himself. Greta's brow furrows in deepening confusion as he continues, unable to reconcile how he could be from this general time period and so familiar with what was to come. But before she can ask him just how he knows all this, he cuts himself off abruptly and stares at some other impressive-looking structure some ways off.

"… Is everything all right?" she asks. It obviously isn't, but maybe the little verbal nudge will encourage him to explain himself.