As on the ground, they are matched in curiosity. In the air, their clothes match as well, in a birdlike way. Altaïr frowns at all this. He is usually serious and shows as much. He is very serious about investigating the light. After some rapid deliberation, he makes a decision.

"In your three months here, have you learned who owns this tower? Or any of the other lighted towers?"

It's almost as if they had never interrupted their conversation on the ground. Altaïr is doing his very best to take D's ethereal weirdness in stride. He's used to just himself and his Brothers being the only ones to explore vertically.