Expecting Lucius - so he can tell her what he thinks he's doing out 'til four in the damned morning, for starters, and she thinks she'll make him do so before she tells him about Malfoy Sr sleeping upstairs, lest it get misplaced in the chaos - Narcissa is briefly bewildered by the knock at the door, even as she rises to answer it. He wouldn't knock, she reasons, being as he has his own key and it's his own damn house, which immediately begs the question of who on Earth fancies it such a grand idea to be hammering on her door at, as noted, four in the damn morning.

The sight of the woman on the other side of the door forestalls her irritation, somewhat, and her answer is instead slightly bemused: "...Sir Hellsing. Is something-?"