It's called frostbite. Not as good as a coke high, but it gives you a pretty good trip. I left it in the room, I'll bring you some next time.

[ He shakes his head, shifting his position a bit. The floor's starting to get cold, but it's nothing compared to being stuck down here. ]

Nah, but there's bartering. A lot of 'em will trade you for blood or spit. Some of them were willing to give you stuff if they could try a spell on you. Guess it just depends on what they're offering.