*He can hear her coming, of course, and Sirius is not foolish enough to think that she's coming to give him tea.

When she enters the parlor he's begun tossing, he doesn't look up, just adjusts the sensitivity on his Dark Detector--the entire house seems to be setting it off--and sweeps it slowly and methodically past a series of cabinets. One drawer seems to crackling particularly and Sirius doesn't want to talk to her, but a trapped drawer for Dark artifacts wouldn't suprise him in the least, so he speaks to her stiffly and formally.*

I'll need you to open this.