[Katara's smile falters at that a little.]

Momo's here! Toph... went home about a month ago. And I haven't seen Appa since the last time I saw you - but now that you're here, he might show up too! He's not in any danger back home, time just stops. So even if it takes a while, when you leave here, you'll go right back to where everything was.

[With Appa and with me.]