The thought made him grin stupidly to himself. He put the thought away for now, and reached into the cabinet for a vial of silvery-grey liquid. Mercurial Water, a by-product of the Albedo Stage of the alchemical process. It was good for soothing deep wounds, but only of the person who created it, which in this case was himself. He would have given his entire supply if it might have helped Hermione, but it wouldn't have had any greater effect on her than the average bubble bath. He didn't have much of it left anyway.