Aang watches cautiously as his son climbs and deposits himself nearby. And then he leans over in concern. Things are getting weird, and scary, and he can't hope but wish he could be that older version of himself. That he was wiser, stronger - whatever he needed to be to solve this problem. To be the Aang whom this man, this son, needed.

"I- I'm sorry." He breathes slowly as he looks over Bumi. "I don't understand what's happening at all."