The boy shrugged. "It wouldn't be about the hallways," the boy said. "It would be justice for his past crimes, and I'd only do it if Jugson made the first move. The point isn't to make people scared of me as a wild card, after all. It's to teach them that neutrals are perfectly safe from me, and poking me with a stick is incredibly dangerous." The boy smiled in a way that didn't reach his eyes. "Maybe I'll buy an ad in the Daily Prophet, saying that anyone who wants to carry on this dispute with me will learn the true meaning of Chaos, but anyone who leaves me alone will be fine."
"No," the old wizard said. His voice was deeper now, showing something of his true age and power. "No, Harry, that must not be. You have not yet learned the meaning of fighting, what truly happens when foes meet in battle. And so you dream, as young boys do, of teaching your foes to fear you. It frightens me that you, at far too young an age, might already have enough power to make some part of your dreams into reality. There is no turning of that road which does not lead into darkness, Harry, none. That is the way of a Dark Lord, for certain."
The boy hesitated, then, and his eyes flickered to the empty golden platform where Fawkes sometimes rested his wings. It was a gesture that few would have caught, but the old wizard knew it very well.
"All right, forget the part about teaching them to fear me," the boy said then. His voice was no less hard, but some of the cold had gone from it. "I still don't think you should let children get hurt out of fear of what someone like Lord Jugson might do. Protecting them is the whole point of your job. If Lord Jugson really does try to get in your way, then do whatever it takes to stop him. Give me full access to my vaults, and I'll take personal responsibility for dealing with any fallout from banning bullies in Hogwarts, whether it's Lord Jugson or anyone else."
Slowly the old wizard shook his head. "You seem to think, Harry, that I need merely use my full power, and all foes will be swept aside. You are wrong. Lucius Malfoy controls Minister Fudge, through the Daily Prophet he sways all Britain, only by bare margins does he not control enough of the Board of Governors to oust me from Hogwarts. Amelia Bones and Bartemius Crouch are allies, but even they would step aside if they saw us acting wantonly. The world that surrounds you is more fragile than you seem to believe, and we must walk with greater care. The old Wizarding War never ended, Harry, it only continued in a different form; the black king slept, and Lucius Malfoy moved his chesspieces for a time. Do you think Lucius Malfoy would lightly permit you to take a pawn of his color?"
The boy smiled, now with a touch of coldness again. "Okay, I'll figure out some way to set it up so that it looks like Lord Jugson betrayed his own side."
"Harry -"
"Obstacles mean you get creative, Headmaster. It doesn't mean you abandon the children you're supposed to protect. Let the Light win, and if trouble comes of it -" The boy shrugged. "Let Light win again."
"So might phoenixes speak, if they had words," the old wizard said. "But you do not understand the phoenix's price."
The last two words were spoken in a peculiarly clear voice that seemed to echo around the office, and then a huge rumbling noise seemed to come from all around them.
Between the ancient shield on the wall and the Sorting Hat's hatrack, the stone of the walls began to flow and move, pouring itself into two framing columns and revealing a gap between them, an opening that showed a set of stone stairs leading upward into darkness.
The old wizard turned and strode toward those stairs, and then looked back at where Harry Potter stood. "Come!" said the old wizard. There was no twinkle now in those blue eyes. "Since you have already gone so far as to force your way here uninvited, you may as well go further."