Important Information.
Tonks, Remus, Sirius and Dumbledore are still alive. Voldemort was never defeated.
Harry's POV.
I was angry, angrier than I'd ever been before. How could she do this to me? I thought, furiously. I was pacing up and down Sirius's front room muttering unintelligibly. Sirius sat on the sofa across the room, watching me carefully. I knew he had no idea what was going on, maybe he was afraid to ask.
Out of the corner of my eye I saw him get up. I whirled round quickly to look at him.
'Just going to get us something to eat,' he explained, 'You look like you might need it. It'll be ready in a half hour or so.' With that he walked from the room, leaving me to fester. He was obviously not worried about my sanity, and oblivious to any plans I could be forming.
As soon as he had walked out the door, I sat down on one of the chairs hard, and plotted my revenge. She won't cross me again, not after this. No one would, I thought a few minutes later. Time to drop in on an old friend... I walked from the house, laughing quietly.