[Naturally, a flashy go is the best kind. He has to lean down to have a look at the glove, and prods the stain, then smudges the powder between his fingers - and no he's not going to smell it, that's weird, even if it might help.]

I dunno. It's pretty dark. Stains easily. Could be blood, mud, wine? Mud's the easiest to test, we just need to get water back at that ravine.

[And he waves for Buggy to follow, hoping that the easy answer is the right one because where are they going to get wine down here? And blood... Well, at least they can do that if they need to but yikes.]

It's a cup, which makes me think wine but that's the worst possible answer!