dolphinluv2783 brought up a great question to kick off our discussions:
"What was up with Dumbledore's look of triumph in GoF that VD could touch Harry now? Some people think that's very important."
I absolutely agree. Everytime JKR has been asked about it, she's admitted it was significant. For example, in 2000:
Why did Dumbledore have a look of triumph in his eyes at the end of book four?
JKR: "Good question … excellent, in fact, and like all the best questions I get asked, I can’t answer it! Because it would give too much away. However, well-spotted. Have fun guessing … someone’s bound to get it right!" [Read the AOL chat, 2000]
And in the Mugglenet/TLC interview in 2005:
MA: Does the gleam of triumph still have yet to make an appearance?
JKR: That's still enormously significant. And let's face it, I haven’t told you that much is enormously significant, so you can let your imaginations run free there. [Read the entire interview, 2005]
And here is the exact quote from
Goblet of Fire:
“He said my blood would make him stronger than if he’d used someone else’s,” Harry told Dumbledore. “He said the protection my – my mother left in me – he’d have it too. And he was right – he could touch me without hurting himself, he touched my face.”
For a fleeting instant, Harry thought he saw a gleam of something like triumph in Dumbledore’s eyes. But next second, Harry was sure he had imagined it, for when Dumbledore had returned to his seat behind the desk, he looked as old and weary as Harry had ever seen him.
So, dear friends, what are your theories? What gave Dumbledore that gleam of triumph during such a horrible moment, and what wiped it away immediately thereafter? Did he see the key to Harry's victory in the fact that he and Voldemort share the same blood? If so, how?
Here's my brilliant theory under the cut:
Now how about yours?