Disclaimer: I do not own Harry Potter or the characters and alas, not even the universe. Emense praise goes to JKR who does own this and who created it. I'm merely sharing what I think should/may happen inside her universe while we wait to see what really does.
Harry awoke to the sound of raised voices rattling through the house and into the room he was in. It took him a moment to realize where he was; he was in Remus' bed after going to sleep at Remus' request at Headquarters. But where were Remus, Ginny, and Tonks?
Harry heard footsteps approaching the door and looked up to see a grim faced Remus. "You need to get up and come downstairs Harry," he said gently. "Molly is going to bite off your head for last night's stunt and I can't say that I blame her. But I found some really interesting news, Harry. You never told Dumbledore who your new guardian was or that you were even changing guardians. Apparently a letter showed up on his desk this morning about that."
Harry knew he was in trouble with his new father. He would have more time to clear some things up, but he realized now was the right time. "Well, you see," he began sitting up in bed, "you had to agree to the guardianship before you could officially become my guardian and I didn't feel like listening to Dumbledore try and talk me out of changing guardians, so I just wrote a letter to Gringotts, discovered how to change guardians, and then you gave your consent last night, so I now have a new guardian."
Lupin stepped into the room, closing the door behind him. He rubbed his temples for a few minutes contemplating Harry and his mess. "Harry, we need to sit down and have a very long conversation later today. You need to explain some more things to me and we need to work out what this means now that I'm your guardian. But first, you must face the rest of the Order and everyone living in this house! The stunt you pulled last night went unnoticed by no one. Hermione arrived a few minutes ago to give you a piece of her mind and to spend the next two months of vacation here with her parents."
"Moony, I'm sorry about dragging you into this mess, it's just-" Harry began, but was interrupted by Remus.
"Harry, I know. I understand, but that doesn't mean you aren't going to go face some nasty Weasley and Professors tempers. They are waiting for you downstairs. They think you're asleep and have no idea where you are. Change your clothes and come down into the kitchen. Try to avoid the drawing room; Ron and Hermione are waiting to strangle you in there. You'll have better luck with the adults first," Lupin said. He turned around and began walking downstairs.
Harry quickly changed and with a weight in his stomach, he started down the stairs into the kitchen. As soon as he entered, the room went dead silent. Harry walked around the room, keeping his eyes focused dead in front of him, and took a seat next to Remus. Harry noticed Dumbledore was there and made a point of not looking him or any other adult in the room except Remus or Tonks.
As Harry sat down, he felt the eyes of every person in the room on him. He instantly grew wary of the attention and his anger began to bubble. Every second the eyes were trained on him, his anger grew. The atmosphere in the room slowly began to change: it became charged, filled with energy, as if it were about to burst.
Remus was aware of the change and knew it was Harry's doing. He also knew the longer he remained angry, the more the room would begin to match his anger, James had had the same problem. He looked at everyone in the room, trying to tell them to look away, but no one took any notice of him.
Finally, Dumbledore broke the silence. "Harry, I believe to have some explaining to do," he said in a calm, demanding voice.
That was the last straw for Harry. He wouldn't explain himself to the Headmaster until the Headmaster explained himself to Harry. Harry looked up at the people who were looking at him with a fire in his eyes. He looked at each individual person. As he drew nearer to where he knew Dumbledore was sitting, the fire in eyes grew. When he reached the Headmaster, he said one single word as his anger increased. "No."
Every person in the room drew in their breath. They had each heard the maliciousness and hatred in the word and it scared them. They also knew that no one had openly refused the Headmaster before. Even the Headmaster himself looked surprised.
"I beg your pardon Harry?" Dumbledore asked in a tentative voice.
Harry looked up and moved so he was at the end of the table directly across from Dumbledore. His gaze blazed into the Headmasters as he spoke. "I said no. I will not explain myself. Not to you. I have no reason to trust you and I therefore will not. I will tell those of whom I know I can trust. I will tell those whom I don't feel have betrayed me. None of those things apply to you and therefore I will not tell you. If you want anyone at this table to hear what I have to say, then I suggest you leave."
Dumbledore was now shocked. He knew that he and Harry had issues, but he wasn't aware they were this pressing or this defined. It scared him. He wondered what Harry had really been up to in his room. Certainly he wasn't contemplating, brooding, or morning the events of last year.
Dumbledore came to a decision. He needed to think about his relationship with Harry before he made the wrong move, again. He rose from his chair and walked toward the door silently hoping no one would try to stop him. But, someone did.
"Headmaster! You cannot seriously allow Potter to get away with this. He's turning into a spitting image of his father, the arrogant little-" Snape began. But before he knew it he was pinned to the wall. He hadn't seen anyone move as fast as Harry just had. Nor had he seen anyone with such hatred and rage in their eyes before.
"Snape, if you are going live to see next year, or even the end of tonight, then I suggest you close your mouth and leave my father out of your taunting with me. If you have a problem with me, don't hide it behind my father, but tell me to my face," Harry said, his voice cold and soft.
"Harry, please let Severus go," Remus pleaded in a gentle voice.
Harry released Snape and was turning to walk back to where he stood moments before when Snape said, "Fine Potter. You want to threaten me, go ahead. But I know for a fact that you cannot do magic outside of school until July 31, so I'd like to see you hurt me before then."
The moment the words were out of his mouth, he knew he had gone too far, as did every other person in the room. Everyone collectively drew in their breath and held it.
"Well, I guess I'm not the only one who has been lied to. Actually, I discovered some interesting news while reading up on the Fidelius Charm last weekend. Did you know that the ministry cannot keep track of the magic performed somewhere under the charm? How would they send notification of a breaking of the law if they didn't know who broke the law or where they broke it?" Harry's hatred had changed from being directed toward Snape to being directed toward Dumbledore. No one was quite sure when Harry had stopped talking to Snape, but everyone knew he had.
"Didn't expect me to find that out?" Harry asked Dumbledore. "Well, that's only one of the many things I've found out this summer. Now, please leave so I can tell my story and get the hell out of here."
Dumbledore masked his shock and left the room. When Harry heard the distinctive pop of the Headmaster disapparating, he turned back to the Order members sitting at the table with shocked, stunned looks on their faces.
"So, who wants to know what?" Harry asked as he slid into a chair, his anger dissipating, but not completely vanishing.