« on: December 8, 2006, 07:20 AM »
I think an unbreakable vow with Dumbledore is out of the question. Dumbledores very nature is that he is/was very trusting. I can't see any circumstance where he would put someone in a position to keep a promise or die.
With Snape, Rowling always makes us think incorrectly about him. In the first book, it looked like he was after the stone, but turns out to be good instead. In GoF it looks like he and Karkarov may be up to no good, but it wasn't the case.
His training Harry while fleeing the school may be more misdirection, espicially if he is playing both sides. However, I think Rowling is writing him to be good, probably due to the fact he was in love with Lily and he can't forgive Voldemort for killing her.