The 7th (and supposedly final, but I wish it weren’t so) book is coming out in July, right? I’ve been reading and rereading the whole series for years now, and I always love trying to figure out where the next book was going. (I’m going to assume that spoiler tags are unnecessary because the books have been out for so long)
Here’s what I think will be revealed in the next book:
The R.A.B. who stole the Horcrux is Sirius’ brother, and this is why he was killed.
Snape killed Dumbledore on his orders, OR he made the Unbreakable Vow not knowing what he was getting himself into. Hear me out:
In the first scenario, Dumbledore gets wind of the assassination plan, either through Snape or some other source, and convinces Snape to do it, thus saving Draco (who may well come over to the good side) AND proving Snape’s dedication to Voldemort and silencing the Death Eaters who might want to do him in.
Snape tells Narcissa he knows of the plan in order to get the information out of her, but doesn’t, and ends up making the Unbreakable Vow not knowing what the hell he’s doing. When he and Dumbledore figure this out, Dumbledore is screwed, because Snape’s their only inside man, and so Dumbledore sacrifices himself for the good of the Order.
You might think I’m crazy for not believing that Snape is an evil bastard. I didn’t come to this conclusion until I read the book a few more times, and here’s why I think it-
-Snape is visibly nervous when making the Vow (his hand twitches)
-He argues with Dumbledore about not wanting to do something which he had previously promised to do
-I can’t for the life of me figure out why Dumbledore would immobilize Harry, though I really can’t use this to argue one way or the other (ideas would be appreciated, and I don’t buy the whole protection angle- he was freakin invisible, and being unable to move would put him in greater danger IMO)
-Snape uses no spells that hurt Harry when he is pursuing him, he either blocks them or knocks Harry down, but he could have done much worse