Oh, hello, so you're the Harry, that he mentioned more than once. Nice to meet you and thank you.

I'm not even sure if it's a thing anywhere else than back in our home world. And I could explain it, but maybe it's better if you see my familiar and Sokka at it yourself --

[INCLUDING a short, silent video clip of Sokka screaming as he sleds down on the back of an otter penguin on snow and ice surfaces around this world last winter. Because guess who finally realized, that she has lots of videos and pictures of their time here saved somewhere. Sorry but not sorry, Sokka!!]