She squinted her eyes slightly, looking at the woman again. Demon. Hm. Well, pretty demon Clary had ever seen. The ones from her world were various, slimy and usually smelled bad. Either way, she didn't think it really mattered who drew it. She'd seem werewolves use it and it still worked.
Clary began to shake her head slightly, but stopped. Bad idea. Wincing, she shut her eyes again. "Shouldn't matter." it was the power of the symbol being used on the right person. As long as the stele was on her skin and not someone else, it would probably just kill them.
"Just don't prick yourself with it." she didn't think a dot would do anything, it was the runes that had the power, and the one she had in mind would at least let her focus. It would reduce the cut, ease the pain in the heard. Though if she had a concussion of some kind, it wouldn't be strong enough for that.
It must have been complete luck that Ruby had found her when she did. Demon or not, Clary was pretty sure she'd never been so thankful to see someone she hardly knew.
She needed to get a hold of Lindsey. Clary couldn't do that without help at this point.