Action Scene: Lucius and Narcissa discuss the future A house-elf popped in to Lucius's study to inform him of his son's arrival. As much as Lucius wished to talk with the boy immediately, he felt he should discuss plans with his wife first and gain her perspective. He'd been thinking of this for a while, of how to see the Malfoys gained a foothold in the new order of the world. Narcissa was sometimes quite perceptive in political relationships, so it wouldn't do to go on about his business and exclude her. It wouldn't do at all.
After calling the house-elf back, he learned Narcissa was in her study, and he set off that way down the long, quiet halls.
He knocked on her door for politeness's sake and entered without waiting.