Harry Potter and the Methods of Rationality

The old wizard's eyes were locked only on Harry. "Would you risk everything - everything - only for her?"

"Yes," Harry said back in reply.

That's the wrong answer, you know, said Slytherin. Seriously.

But it's the true answer.

"You will not see reason?" said the old wizard.

"Apparently not," Harry said back.

The gazes stayed locked.

"This is terrible folly," said the old wizard.

"I am aware of this," answered the hero. "Now get out of my way."

Strange light glinted in the ancient blue eyes. "As you will, Harry Potter, but know that this is not over."

The rest of the world faded back into existence.

"I withdraw my objection," said the old wizard, "Harry Potter may do as he wishes," and the Wizengamot exploded in a roar of shock, only to be silenced by a final tap of the stone rod.

Harry turned his head back to look at Lord Malfoy, who looked like he'd seen a cat turn into a person and start eating other cats. To call the look confused did not begin to describe it.

"You would truly..." Lucius Malfoy said slowly. "You would truly pay a hundred thousand Galleons, to save one mudblood girl."

"I think there's about forty thousand in my Gringotts vault," Harry said. It was strange how that was still causing more internal pain than the thought of taking an over-fifty-percent risk to his life to destroy Azkaban. "As for the other sixty thousand - what are the rules, exactly?"

"It comes due when you graduate Hogwarts," the old wizard said from high above. "But Lord Malfoy has certain rights over you before then, I fear."

Lucius Malfoy stood motionless, frowning down at Harry. "Who is she to you, then? What is she to you, that you would pay so much to keep her from harm?"

"My friend," the boy said quietly.

Lucius Malfoy's eyes narrowed. "By the report I received, you cannot cast the Patronus Charm, and Dumbledore knows this. The power of a single Dementor nearly killed you. You would not dare venture near Azkaban in your own person -"

"That was in January," said Harry. "This is April."

Lucius Malfoy's eyes remained cool and calculating. "You pretend you can destroy Azkaban, and Dumbledore pretends to believe it."

Harry did not reply.

The white-haired man turned slightly, toward the center of the half-circle, as though to address the greater Wizengamot. "I withdraw my offer!" shouted the Lord of Malfoy. "I will not accept the debt to House Potter in payment, not even for a hundred thousand Galleons! The girl's blood debt to House Malfoy stands!"

Again the roar of many voices. "Dishonorable!" someone cried. "You acknowledge the debt to House Potter, and yet you would -" and then that voice cut off.

"I acknowledge the debt, but the law does not strictly oblige me to accept it in cancellation," said Lord Malfoy with a grim smile. "The girl is no part of House Potter; the debt I owe House Potter is no debt to her. As for the dishonor -" Lucius Malfoy paused. "As for the grave shame I feel at my ingratitude toward the Potters, who have done so much for me -" Lucius Malfoy bowed his head. "May my ancestors forgive me."

"Well, boy?" called the scarred man sitting at Lord Malfoy's right hand. "Go and destroy Azkaban, then!"

"I'd like to see that," said another voice. "Will you be selling tickets?"

It went without saying that Harry didn't pick this particular moment to give up.

The girl is no part of House Potter -

He had, in fact, seen the obvious way out of the dilemma almost instantly.

It might have taken him longer if he hadn't recently overheard a number of conversations between older Ravenclaw girls, and read a certain number of Quibbler stories.

He was, nonetheless, having trouble accepting it.

This is ridiculous, said a part of Harry which had just dubbed itself the Internal Consistency Checker. Our actions here are completely incoherent. First you feel less emotional reluctance to risk your bloody LIFE and probably DIE for Hermione, than to part with a stupid heap of gold. And now you're balking just at getting married?

SYSTEM ERROR.

You know what? said Internal Consistency Checker. You're stupid.

I didn't say no, thought Harry. I was just saying SYSTEM ERROR.

I vote for destroying Azkaban, said Gryffindor. It needs to be done anyway.

Really, really stupid, said Internal Consistency Checker. Oh, screw this,