Reminiscing Over the Past
Surprisingly, once Valyr heard Braum utter the words 'Underground Transport Network' in his question, the former's eyes briefly widened in slight surprise as he looked at the man in silence for a bit. Sometime later, he faintly nodded, informing the man beside him that he had heard a few people mention it to him in the past, though he did not think too much about it back then since he had no clue what it was.
However, in reality, Valyr was inwardly left at a loss for words once Braum told him about the Underground Transport Network, his familiarity with the service far beyond only knowing about it by name. Instead, he was someone who could be considered an avid and expert user of the service in the past.