Lucius gets to his feet, smoothly but a bit abruptly. "Yes - Narcissa told me." The 'of course' goes unsaid.

He knows the possible future that lies in front of him, but knowing and seeing are two very different things. At least Narcissa has the consolation of knowing for a certainty that Miss Black can't be her younger self; he has no such reassurance here.

"Would you like some tea? Something to eat? No elves to attend to the cooking, I'm afraid, but we're making do without for now." He falls back on manners because he genuinely doesn't know what else to do.