"Give it time," he said, flat. "When that urge arises, find me. Do not do something rash or impulsive. In all of your behaviour, whenever you are observable to someone other than myself, you must display submissiveness. You are a prisoner of war now, Miss Granger, and  that  is what matters. What the Ministry wants and what the Dark Lord wants are irrelevant—what matters is keeping the appearance of a cowed, obedient,  useless  girl. Anything else puts you in indescribable danger."