Adam's only passing through, eager to get past the tour group of unfortunate new arrivals, when one particular voice rises above the murmur of the crowd and catches his attention. He freezes, unsure of his senses, uncertain he can trust his ear to interpret living voices instead of dead ones. But when he turns to look back, his eyes land on Joseph Kavinsky. Not a wavering vision, but his very solid (and alive) former classmate, right there.

It's interesting, in that it confirms what Adam had heard about the passage of time in this place. But Kavinsky isn't someone he has any interest in speaking to, so he turns away, hoping to make a hasty departure before Kavinsky can recognize him.