He made himself push through the little swoop of despair that followed the revelation that Fred and George Weasley were heading up the rescue effort. Times had changed, after all. - And they had always been good at sneaking about, very nearly the best. "I'll need to know where they come into the castle. If you can find me that, I can at least keep them clear, when the time comes." Hopefully. What happened to the children once they actually left Hogwarts would have to be someone else's concern.
He found himself relaxing, just a little; and when he spoke again, it was a bit less urgently. "That's one, then." He waved his hand. "It's your turn, I believe." He wouldn't normally have engaged in this sort of back-and-forth - better to get all of his answers up front, when he could bully someone into it - but she had shown more faith than ... well, anyone, really. He wouldn't have admitted to gratitude, but it was certainly refreshing, and was without a doubt behavior that he wanted to encourage. Not having to pull teeth was a pleasant surprise. ... Which should have made him suspicious, but he flattered himself that he knew, by now, when he was being lied to.