"Yes," Bellatrix said, expelling the subject- she had been mostly teasing anyway. "Tis none of my business by any means." Taking the stairs easily, she allowed her pale hand to trace the wooden banisters. "I expect Slughorn's off for the evening," she said finally, eyes drifting from Rodolphus to the candelabras and then the starry ceiling.
As they entered the innermost regions of the castle, she found the room and opened it hesitantly. It was empty and so was the office adjacent. "Good," Bella said happily, shoving the door open and entering. Selecting a desk, she sat almost excitedly. "Now then, Ro, what's happening?"