agree
i'm new and just posted my first message (first after intro) on the jkr thread. i have to agree that it's possible/likely that that clue refers to the new dada's teacher. but i doubt the dada teacher is the half blood prince (although everything is possible) cause i like to believe that she at least mentioned him (hbp) in one of the other books .
bianca
ada,
no, she definitly has never mentioned the words hbp in any of her books, but what i meant is that we might have known that character all along. could be one of the many halfbloods that go to hogwarts and who's name she's mentioned. but i really have no clue who it could be so i have to say that you're probably right that the hbp is a totally new character.