"Human prisoners? Hmm...let's see...we don't exactly get a lot of them, since most aren't crazy enough to end up here. Unless they come in force, but it's been a while since any have made it this far. I guess...the dungeons would be pretty obvious place to check." The demon boy pulled up a stool to sit on while he thought about it. "I wonder if it really is a human, though. I feel like that would be kind of odd, all things considered, though I guess it is possible. But exactly what they'd be doing here is beyond me, if you didn't bring them. Unless they wanted to be sure of their hero's safety on their own?" 

Pointing toward the mirror, he looked back toward Wrenna. "Have you ever tried scrying before? Or do you want any pointers?"