Alright. If we step over to the wall, you can head clockwise, I'll go counterclockwise, and one of us should find something before we meet in the middle.

[simply looking around doesn't do any more for her than it does for him, so she heads to the wall in front of them, which ought to be the stairwell. Except that there's no wall after all, and maybe they've found this thing already.]

Um, was this hallway always here? 'Cause otherwise I think this 'new' thing in the lobby is right in front of our noses.