[There's something soothing about Mephisto. Most people would call it "unnerving", but the Gromble? No, not at all. It's almost like he's kin of some sort!]

We typically don't go announcing the fact. Humans fear what they don't understand, and supplying them with understanding is very dangerous for us. We wouldn't want to end up on one of their little lab tables somewhere. Though if I'm understanding the situation correctly here, this whole city is one big lab table, so there's no reason to dance around the facts.