No one else would have noticed, but Robin has something to hide. He'd thought he'd done a decent enough job, removing his manic words from the walls and cleaning up that old blood splatter off the floor... But now he has to wonder if Phalanx can't see them anyway.

A lot of the odd things that Phalanx says can be chocked up to coincidence, but they have no reason to be looking with interest at something that isn't there--unless they have an inclination of what that nothingness used to be.

"What are you looking at?" He asks, watching Phalanx's face for an answer.