"Wow. Big place, we can put the desk in that corner, the chest over there, by the window. . . Oh, hello." She waves, smiling. "Don't mind me, I'm just setting up shop. What shop? Why, I 've moved in. If you want, dig through that chest, I know I put the chocolate pot somewhere. . .
"We're all mad here."
I think it was the Cheshire Cat what said that, or something along those lines. It fits.
Welcome, by the way. Now if you don't mind, I'm off to do some exploring. . . "