Another image, same situation. The heroine isn't there alone; she brought her partner with her, another mage (she isn't a mage, she's a cat burglar; it's a long story). So while Heroine is playing cards, trying to get a handle on the chameleon suits, hero is exploring the little girl's rooms. And he finds a mirror that isn't behaving properly. There's a couple of dudes on the other side of the mirror, banging on the glass and shouting. They look like they're losing their minds. They also act like there's something in there with them, just out of sight, and very very dangerous/scary.
"Those two were bad men," says the little girl by way of explanation. "They broke in here and tried to make me go with them. I made them go away."
There's no way to get them out of the mirror.