I found him!

I know.

He's here!

I understand.

Let's kill him!

No! I trusted you. And all this time, you've been his friend. He's a werewolf! That's why he's been missing classes.

How long have you known?

Since Professor Snape set the essay.

Well, well, Hermione, you really are the brightest witch of your age I've ever met.

Enough talk, Remus! Come on, let's kill him!

Wait!

I DID MY WAITING!! TWELVE YEARS OF IT! IN AZKABAN!!!

[Hands him his wand]

Very well. Kill him. But wait one more minute. Harry has the right to know why.

I know why. You betrayed my parents. You're the reason they're dead!

No, Harry. Someone did betray your parents but it was somebody who, until quite recently, "I believed to be dead."

Who was it then?

Peter Pettigrew! And he's in this room, right now!