Ron Weasley was talking about Hagrid's food, and none of his words were complimentary. Or at least that's what Harry had gotten in the ten seconds it had taken before he had completely tuned the other boy out.
He'd seen something in the paper - Gringotts' Break in - and from the idea that it was front page news, that was apparently not a usual thing.
The strange thing was, Harry recognized the Vault that was apparently looted... it was the one that Hagrid had gone to, when Harry had been at Gringotts, a few weeks before.
And that just didn't make any sense (although Harry was fast coming to understand that Wizards Didn't Make Sense, he still held out a fairly justified hope that Goblins made Cents, and were thus sensible people).
Rule number one about reporting on criminal activity was to give the least amount of information possible to the general public. Keep the criminals guessing on how much you knew about them.
And this was the exact opposite.
Perhaps it was a public relations ploy on the part of Gringotts? That they had gotten broken into, but nothing was taken? No, that didn't make any sense at all, particularly not for the closelipped goblins.
Maybe it was a ploy on the part of the criminal? Maybe the criminal had arranged for the theft to be publicized, and only after the fact did someone actually check with the goblins, who hastened to reassure everyone that nothing had been stolen...
Was there an entire black market that Harry was completely unaware of? Granted, he was eleven, and thus any respectable (and probably most disrespectable) person would be against him actually participating... But just knowing about it...
There would be traces, there would be records. Somewhere. Possibly not in the school library. Who, who would know about such things?
[a/n: Yet another of the implausibly stupid decisions Rowling (or her employed character) makes. Guesses as to Harry's newfound source? Leave a review, whether you like this or love it. Or hey, I like constructive criticism too.]