Now Harry and Mr. Weasley are talking alone. Things aren't going great in the grown-up magical world outside Hogwarts either.
Mr. Weasley doesn't know where Dumbledore is traveling, but he does let Harry in on one tidbit: he thinks that Draco Malfoy was in Borgin & Burke's because he was interested in the vanishing cabinet they have in there. Huh? Mr. Weasley explains that a vanishing cabinet can transport someone pretty much anywhere. But the one in Borgin & Burke's is still there. Hmm.