I agree with Godric. Any of you who are saying that it is Seamus or Harry obviously haven't read the answers already posted. The Half Blood prince is clearly NOT Harry because then the title of the book would roughly translate as 'Harry Potter and Harry Potter' which is, quite rightly, ludicrous. IconHotel- I would not be surprised if you were right on that. I don't think that the Half Blood PRINCE is a female *cough*, or Seamus, because he has no relevance to the second book. JKR DID say that she was going to call the CoS the HBP, but didn't, because it was missing several very important clues. All the evidence we have gathered points to Godric Gryffindor, and like Godric said above, if you go on the offical site, it DOES have a brief description. I have read this, but don't remember the exact words- however, there was a phrase in the actual paragraph on the site which describes HIS (yes, he is male) 'lion-like mane' or something similar to that. I forget. So this is not Seamus, is it? Because last time I checked, he did not have a mane. This would fit into what Godric and IconHotel have said because if you think about the whole 'Latin meanings' theme in the HP books, 'Gryff' has lots of things to do with 'lion'. And what's the Gryffindor logo? OH YES, A LION!!