"I think a long time, then."

" - No one's seen the Avatar in more than a hundred years. I'd thought maybe it just cycled around again somehow, but - "

"You're the one from back then, aren't you? The one that vanished."

"That's me," Dechen says with a half-hearted smile.

Okay Amaruq is not the one who's good at social here and the Avatar apparently doesn't know about all the genocide. Including of her own people.

She sends Taqqiq a 'help???' look.

"So there's kind of a lot of history you missed out on."

"Things didn't get better, did they."

"...Not really."

"They got... A lot worse."

Sad.

"Do you want to wait until we land to hear about it?"

...Yes, that thing. She wants that.

Dechen nods.

Yeah. Probably a good idea. 

They'll continue onwards, then.

Meanwhile: "I've lost sight of them - helmsman! Take caution with this fog - !"

They don't have time to be cautious, they're going to lose them-

Zuko heads to the prow and starts punching fire to try burning off the fog.

It's not very effective. 

"Niece," her aunt says, warningly, "Impatience will not help."

She stops.

"Neither will anything else, apparently."

"We have a heading now. That's more than anyone's been able to say for a hundred years."

"It's not enough."

She touches Zuko's arm softly. "Niece... Let's let our men do their part of the search. You and I can work on your form."

She doesn't want to train, she wants to capture the Avatar. So she can go home.

"Fine."

Training is, at least, unlikely to hurt that goal (and might tire her niece out enough that she'll listen to Iroh more).

It usually does put her in a better mood, yes. Even if she can't land a hit on Iroh more than three tries in ten, when her aunt takes Zuko seriously.

Even three times in ten is a very good start (and better than just about anyone but the masters, Iroh doesn't say) - though Iroh's job as her teacher won't be done until it's ten in ten.