A cage is perfectly fine from his perspective, but putting werewolves from different realities too close to each other, or in an area where people are coming and going is not. He's not even sure if the rumor is concrete, anyway, and he has more important and less suicidal things to do than go investigate.

So, he rolls his eyes. Whatever, about floors. He's not going to let him run around to that extent, how insanely stupid.

"Because I was asked for help." The deeper they go into the labs the more levels of doors and observation windows they go through. "Do you want anything specific outside of it?" He gestures absently to one of the areas they're passing; more offices connected by small anterooms. If Severus is seeming more cooperative than usual, it's not his good nature; he wants to be as clear as possible about all of this from the beginning so try and avoid more idiocy from the others. He doesn't have much hope it'll help at all, but he can make the attempt.