"I'm sorry, Miss Brown. I don't mean to cause you any further worry, but I'd rather you be ready. Greyback is known for not liking unfinished business. You survived without being turned, and he would consider that an insult. So do I think he'll come after you? Very likely. The one thing I don't know is when."
She could understand the anger - that was often her own reaction to things, but here and now she was a professional above all else.
"And no, the Ministry doesn't know where he is - that's why they put me on the case. I've gone after him before, before the Battle. I promise, I'll do what I can to get him."
Then, as if coming out of nowhere... "Miss Brown, do you like bubble gum?"