It sounded like a small motor had started running on the other side of the door, and Azrael raised an eyebrow. Hopefully all would be...well, not explained, but demonstrated, perhaps. And then Duma was there, smiling at him and ushering him inside.
"Nice to see you again," Azrael told him, his voice at a level one might reserve for art galleries. Not that he was really ever all that loud to start with, but hey. "I brought tea. I don't know how you take it, there's...all sorts of things in the tray there."