At first, Phalanx again reacts like a normal human might at being asked such an obvious question. Their smile widens, seeming amused but patient, and they open their mouth to respond.

And that's where things go wrong. They reach for something that they know should be there, but lose their balance when they hit dead air. Each beat of it is there on their face--the pause where the answer doesn't fall out of their mouth like it should, a pang of confusion, the smile disappearing as their mind gropes into a blank space where things had made sense only a moment ago.

Phalanx's eyes search Robin's face, frantic for an instant, before going black as they glance off to the side. Then, it's back to the usual, vague air of confusion as they look aimlessly out into the rest of the room, seeming lost.