Originally posted by GodricaG
Can RAB be anyone other than Regelus Black? I think the real horcrux is hidden at Grimmauld place, unless Mundungus already managed to steal it.
I'm afraid I'm with you there. It's hard to imagine that the (at the time, incidental) scene with Mundugus and the apparently stolen goods was not put there precisely to set up a later scene in which Harry will realise RAB was a Black, will go to the Black house to find the locket and then find that it was stolen along with the other stuff by Mundungus.
With respect to the HBP itself, this is the first in the series that I have had relatively negative feelings about because - in a first for a Potter book - so much is left hanging. You can't really imagine HBP ever getting made into a stand alone film because it leaves so much unanswered, and I can see HBP and the final book being merged into one epic film which contains both the questions AND the answers.
The obvious tie- off, and reasonable compensation for our having to endure the unfittingly squalid death of Dumbledore - would have been to have Harry go after Snape and battle him to the death at the end of HBP.
It would have been the most logical way in which to wrap up a book about a character called the half-blood prince who turned out to be Snape.
As Rowling didn't do that, we can only assume one of two things, either that Rowling means to have Harry fight a 'Lieutenant' battle against Snape half way through the last book and then a 'Boss' battle against Voldemort at the end, or, there remains the delicious possibility that Snape made the hardest decision of his life and killed Dumbledore to maintain his necessary cover as a double agent in order for the good guys to continue to have a lead into Voldemort. From what we know about Snape, he is easily hard enough and single minded enough to be able to make a decision like that. Remember that Snape didn't know he was going to be confronted with the unexpectedly weakened and disabled Dumbledore and when that did happen, the only thing 'bad' Snape could possibly do, surrounded as he was by witnesses from the dark side, was to kill him if he could.
There were other, lesser, irritatingly incomplete threads in this book too. It was mentioned, for example, that Mr Ollivander (Of the wand shop fame) had disappeared. What happened to him? Why raise the matter at all if there was no intention to follow this up?
-GrahamG