Ok I was speaking off hand from reading year 4 when I made that guess. I'm done with year 5 now and I think the answers is completely obvious. It's gotta be Nevil. He and Harry have something in common mentioned there, including half-blood. Hope Nevil comes with a greater power then most people in the book if that happens. Year 5 has got to be the lamest of the whole series so far. the plot and turn of events were ok but it took way too long to get relatively nowhere. Plus everybody just went completely stupid year 5. Harry in any other year would have at least tried to do his homework for Snape, especially at Dumbledores personal request. Then Dumpledore just admits his own ongoing relentless stupidity at the end. The Inspector from hell gets power beyond reason, almost kills Harry doing it, Oh but by the time Fudge accepts the truth she isnt revealed to be a deatheater at all. Is this book trying to teach kids to accept adults and their stupidity no matter whatt the cost? I wonder.