[sansa doesn't really see why greyscale wouldn't exist in other worlds; they seem to have stranger things in common (and it's not as if people truly turn to stone...). but it's not important. she laughs a little.]

Oh, of course not. I'm not a Blood Minister; they just taught me how to do the needles. I've never even heard of anyone doing a blood transfusion in my world; it would be very useful on the battlefield.

I just thought it might help people to know what to look for, so they could come in for treatment.