"I was a bit suspicious about the shop owner, after leaving her booth," Lacey explains. "Mostly, on how shady she was, after selling me the tags. At the time, I didn't really have much use for them, until now that was, and I found just the guinea pig to test them out on." By guinea pig, Lacey obviously met you.
However, maybe finding the mysterious shop owner might be the way in order to fix you from changing more. "You misunderstand the point," the staff explains. "From what you see of your classmate now, you see that the tags were a bad idea. We could get in a ton of trouble with the witch community if we don't undo this mess." "Hey, I did what I had to do," Lacey says. "Besides I actually thought that tag would turn him invisible. Just wish I understood the language of the writing."