[Ginko doesn't answer until he's placed his box on the floor and walked over to Katara. The darkened room doesn't look any different than if it were lit, to his eye.

He glances from Toph to Sokka with an imperturbable calm]

I'll do what I can.

[gently, he places a hand on her head, his voice a little quieter]

Hey, Katara.

-- can you look up at me for a moment?