He continues to watch Zerxus, curiosity and confusion and even some compassion while he does. He doesn't understand why some random, not even level, lines would rouse that much emotion. Much less that type of emotion, though he can't even clearly identify what the emotion is.

"It's certainly something though, isn't it?"

He even goes to swipe some of the dust off the wall, and in doing so, however carelessly, uncovers one that's out of place and even shakier than the others (Except the first) and far above the rest.