[So Sirius has heard this, already, at the castle. He was given the explanation and he listened, sort of, but he was already a little on-edge about the whole thing and so he hadn't perhaps listened as well as he could have--but it doesn't matter, because James' explanations will always be superior to anyone else's. Sirius and James have a way of talking, in shorthand, where they can speak in whole sentences or they can not, because the little cues that they pick up from one another make up for the rest.

All right so: Norse gods, Thor and Odin, bracelets are good, Remus is here as well, teaching but teaching snowball fights, and then James got him in a hug, and even if it's only been a bit of time, for Sirius, he can appreciate that. It's a grounding sort of hug, it's like: okay, so they're in this mad place and what about magic, James, but the fact that James is here to ask at all is more or less all that he needs. So long as he's got James, he's bloody invincible.]

We got picked for a war... because we weren't doing well enough at our own? Or we were doing so well-- yeah, thanks, welcome--

[But it's hard to be at all bitter in the face of James' cheer and happiness, and he's still grinning, even if he's still not certain of all of this. It's really the magic bit that gets in his way, everything else he could manage.]

Only if you're teaching children about snowball fights, I can't imagine that there's much fighting that's gotten done. Unless-- the children are the ones that we're meant to be fighting? Were we brought here to do snow war with children, because if that's the case, it's no wonder you needed me here, Prongsie, you're not bad at snowballs, but we all know who's better-- you didn't just get here as well, did you?

[It's really more a question for confirmation than anything else, because he can tell just from the way that James is talking: no, he didn't just get here. He's been here.]