"You've seen me be mist before." She said, slipping one of the vials back under her jacket before shaking the other two. That night, the night he'd seen some of her alchemy-given power, they'd gone after three centaurs. Not together, of course. Constantine was doing his save the world from the supernatural routine and she'd been there to harvest what she could off them. She'd used her knife, her strength and her alchemy, he'd used his magic but really she'd been the one to kill the three of them. It had been a pretty good fight. Good until she'd decided to save his life. Sometimes she still chastised herself for not letting him die when she thought of it, pretty sure that and her efforts to save him from her hunger when he offered to help with her injury had been what caused his opinion of her to change.
He'd made her human a month later, likely because his opinion of her had changed. Things were better now though. She was undead again and this time she wasn't so much the lost babe in the woods.
"Found the right resonance to mix with some of the formulae I already have. So now I'm not just obscured or just controlling the mist, I actually will be the mist. You ought to give it a try sometime, takes you ages to pick locks on your own, old man." She finally stopped shaking the vials and unscrewed the caps, clearly intending to down them both.