Harry Potter and the Methods of Rationality

Pretending to be someone hurting that much had... Harry couldn't find words for describing what it felt like to contain an imaginary person in that much pain, but it hadn't been normal. "Do I get any credit for being an Occlumens in the first place?"

"So you're think you're all grown up already, eh? Look me in the eyes!"

Harry strengthened his shields, and looked once more into the dark grey eye and the brilliant blue.

"Ever watched someone die?" asked Mad-Eye Moody.

"My parents," Harry said evenly. "I recovered the memory in January when I went in front of a Dementor to learn the Patronus Charm. I remember You-Know-Who's voice -" A chill went through Harry's body, his wand twitching in his hand. "My main tactical report is that You-Know-Who could speak the Killing Curse in less than half a second, but you probably already knew that."

There was a gasp from Professor McGonagall's direction, and Severus's face had tightened.

"All right," Mad-Eye Moody said softly. A strange, thin grin twisted up the lips within the scarred face. "I'll make you the same offer I'd make to any trainee Auror. Land one touch on me, boy - one hit, one spell - and I'll concede your right to talk back to me."

"Alastor!" exclaimed Professor McGonagall's voice. "Surely that's an unreasonable test! Mr. Potter, whatever his other merits, does not have a hundred years of fighting experience!"

Harry's eyes made a lightning dart around the room, passing over the peculiar devices, glancing past Dumbledore and Severus and the Sorting Hat, settling briefly here and there. Harry couldn't see Professor McGonagall from where he was, but that didn't matter. There was only one device he'd really wanted to look at, and the point of all the other glances had just been to conceal which one.

"All righty," Harry said, and hopped off his chair, ignoring Professor McGonagall's inhalation and the Potions Master's snort of disbelief. Dumbledore's eyebrows had lifted, and Moody was grinning like a tiger. "Be sure to wake me up in forty minutes if he does get me." Harry settled into a duelist's starting stance, his wand held low. "Let's go, then -"

Harry opened his eyes, his head feeling like it had been stuffed with cotton wool.

Everyone else was gone from the Headmaster's office, the Floo-Fire dimmed; only Dumbledore still waited behind the desk.

"Hello, Harry," the Headmaster said quietly.

"I didn't even see him move," Harry marvelled, muscles creaking as he sat up.

"You were standing two paces away from Alastor Moody," said Dumbledore, "and you took your eye off his wand."

Harry nodded, as he took the Cloak of Invisibility out of his pouch. "I mean - I was taking the dueling stance so that he'd think I was a standard idiot and underestimate me - but I have to admit, that was impressive."

"So you planned it all along, Harry?" Dumbledore said.

"Of course," Harry said. "Note how I'm doing this as soon as I wake up, rather than pausing to think of it."

Harry drew the hood of the Cloak over his head, and glanced back up at the wall clock he'd surreptitiously glanced at earlier.

It had then shown around twenty-three minutes after eight, and now it was five minutes after nine.

Minerva stared as the boy put himself into the dueling stance, his wand held low. For a second Minerva wondered if Harry might possibly - no, that was completely ridiculous, it was Mad- Eye Moody and that was beyond impossible. Of course that was what she'd thought about his partial Transfiguration, too...

"Let's go, then," Harry said and fell over.

Severus gave a single chuckle. "Mr. Potter has his points, I must confess," the Potions Master said. "Though I would never say it while he was awake, and if you repeat the words I shall deny them, for the boy's ego is quite large enough already. Mr. Potter does have his points, Mad-Eye, but duelling is not among them."

Mad-Eye's own chuckle was lower and grimmer. "Oh, yes," said Mad-Eye. "Only fools duel. Standing like that and waiting for me to attack, what was the boy thinking? Why, I ought to give him a scar, to remember this occasion -"

"Alastor!" barked Albus, just as she cried "Stop!", Severus dashed forward, and Mad-Eye Moody deliberately leveled his wand on Harry Potter's body.

"Stupefy!"

Mad-Eye's body seemed to almost flicker as he spun on his wooden foot like lightning, faster than she'd ever seen anyone move without magic, the red Stunning Hex passing through the suddenly empty air and barely missing Severus to crash into the opposite wall, and by the time her eyes jerked back to Moody there were seventeen radiant orbs in the pattern of a Sagitta Magica, visible for only an instant before they streaked brilliance and struck something that fell to the floor with a thud -

"Hello again, Harry," said Dumbledore.

"I cannot believe that guy's reaction time," Harry said, brushing off his Cloak as he stood up from where he'd been lying invisible on the floor, unseen by his previous self. "I can't believe his movement speed either. I'm going to have to figure out some way to zap him without speaking an incantation that gives it away..."

- and then Mad-Eye ducked hard and fast, his hands hitting flat on the floor. She almost didn't see the two tiny white threads passing through the space he'd been, but her eyes went to the blue spark when the threads impacted on one of the Headmaster's devices, and by the time she managed to turn her eyes back, Mad-Eye had spun smoothly up to his feet, his wand was dancing unseeably fast and there was another thudding sound -

"Hello again, Harry."

"Pardon me, Headmaster, but could you let me go down your stairs, and then come back up again, before I make the final jump backward? This is going to take longer than one hour of preparation -"

Minerva gaped at Mad-Eye Moody, who hadn't lowered his wand in the slightest; and Severus had a look on his face that was almost like shock.

"Well, boy?" said Mad-Eye Moody. "What else have you got?"