"If all goes well," Harry confirmed. "That’s why we need to be incognito. Arthur may be a fool, but Bill most certainly is not. He will know by now that I have re-emerged. He may even know about you ... but in either case he will be expecting a visit from one or both of us at some point. I would be amazed if he didn’t have a contingency for when it happens. So if they get wind that we are here, they may vanish before we have a chance to grab them. We might only have one shot at this, Hermione."