"You wanted to see me?" Harry said once he got to the headmaster's office.

"Yes, Harry. Tomorrow you're teaching Double DADA with 7th year Gryffindors and Slytherins, am I correct?"

Harry nodded.

"I would like you to teach them...the Unforgivables, but not tomorrow- during the year. They were supposed to learn last year, but the DADA professor was too, er, cowardly." Dumbledore said, straightening himself in his seat.

"Okay." Harry said. An idea popped into his head. "Er, Albus?"

Dumbledore looked up at Harry.

"To teach the Imperius Curse, may I perform it on each of them? They should get experience from it, in my opinion. They should feel it at least once, to know how it feels like. I mean, that's how I learned to fight it." Harry said slowly and carefully.

"Ah...You have a point, there...Yes, I suppose you could do that." Dumbledore said thoughtfully.

"Alright, thank you. I'll see you at breakfast tomorrow, then." Harry said.

"Of course." Dumbledore said, nodding.

Harry then apparated to his chambers. When his head touched the pillows, he immediately fell asleep.

- - - -

The next morning, Harry woke up at 6:30 AM. He took a quick shower, brushed his teeth, tried to flatten his hair, with no such luck, and apparated to the Great Hall right into his seat.

"Ah, Harry, what a delightful arrival." Dumbledore said smiling.

Harry grinned. He looked around. It was only 7 AM, but many students were glancing at Harry curiously. With his sharp hearing, Harry heard a conversation of four Gryffindors.

'Ah, the Marauders...Remus, Sirius, James, and Pettigrew.' Harry thought.

Harry heard:

"Come on, don't you think that new teacher looks just me, Moony?" James asked.

"Sure, yes, of course." Remus said subconsciously. He was reading a book.

"He's a bit creepy, don't you think?" Sirius said.

"Yeah, he gives me the creeps!" Peter exclaimed.

"Let's prank the Slytherins during DADA today. But we should make it look like they did it so the new professor won't like them!" James said grinning.

"What if he finds out we did it? I don't want to get detention on the first day of school, for Merlin's sake!" Remus said worriedly.

"Well, he won't, and we won't." James said firmly.

"How do you do that spell where it makes somebody say an insult at another person, Moony?" Sirius asked.

"What're you getting at?" Remus asked suspiciously.

"Well, we could have some Slytherins throw some nasty insults at the new professor!" Sirius exclaimed.

"C'mon Moony, tell us!" James pleaded.

"No, he'll find out!" Remus said crossing his arms.

"Pleased? Pretty pleeaasse?" James and Sirius chorused together.

Peter just watched with amusement.

Harry apparated to the boys' table.

"AAARGGHH!" Sirius yelped, jumping a foot out of his seat. The rest of the Marauders snickered.

"I do believe it's Corvanaes Insulumau." Harry said, smirking slightly.

Harry apparated back to his seat. He watched all four boys gape at him.

"How in Merlin's name did he do that?" asked Peter.

"Back to Plan B. Just prank the Slytherins." James said glumly.

"But let's do it in Defense Against the Dark Arts. It's our first class today. C'mon we have 30 minutes to do this!" Sirius said hurriedly.

"Let's do it on Snivellus!" James said brightly.

"Good idea... During DADA, when the Professor has his back turned, we can make his robes the Gryffindor colors, and evertime he says 'Mudblood', he'll say 'Gryffindor kicks Slytherin arse'!" Sirius said with an evil grin.

"Great. Moony, Wormtail, are you guys in?" James asked.

Remus hesitated, and then frowned. "I don't think it'll be a good impression for the professor if he catches us." Peter nodded with Remus.

Sirius pouted. "You party poopers!" he said. Professor Dumbledore stood up.

"I would like to announce that we have a new Defense Against the Dark Arts professor. Please give a warm welcome to Professor Harry Donovan." the headmaster said starting to applaud lightly, looking pleasantly at Harry.

Harry amused everyone by getting up and bowing very low and waving his hand with a charming smile on his face. Only one person wasn't amused. Harry heard Professor McGonagall mutter to herself, "Oh lord, not another James Potter." looking at Harry. Harry looked back, grinned, and winked charmingly at her. Professor McGonagall gave Harry a mild glare and rolled her eyes in a mature way. Harry grinned even wider, then in a blink of an eye, he apparated to his classroom.

Ten minutes later, classes started. Harry saw four vacant seats right in front of his desk. He stood up and was about to introduce himself when the door opened, revealing four boys sprinting in the classroom.

Harry raised his eyebrows. "What's your excuse?"

Sirius shook some hair away from his eyes and casually said, "None."

"I will excuse you four this time, but I trust you won't be late anymore. Get to your seats." Harry said curtly.

"Oh shit, right in front of the Professor." whispered Sirius. The others nodded wearily.

"Welcome to the Defense Against the Dark Arts class. I'm Professor Donovan. As much as I like pranks-"Harry glanced at the Marauders. "I'm going to need your full cooperation and all I'm asking is to try your best. I'm here to get you ready for the real world where there are enemies everywhere. But mostly, I'm here to help you defend yourself from enemies such as Death Eaters and Lord Voldemort."

Everyone gasped or flinched at that name. A hand crept up in the air.

"Yes, Miss. McCulley?"

"W-why do you say You-Know-Who's name?" she asked shakily.

"The fear of the name increases fear of the thing itself. That's what Voldemort wants. He wants you to be afraid. Every time you say 'You-Know-Who' or 'He-Who-Must-Not-Be-Named', you're letting him win. Plus, if you say it now, he won't hear you, and personally, I don't give a damn if he hears me or not. I'm not giving him the satisfaction, and I hope you won't either in the future." Harry said firmly.

There was total silence.

"Today I'm just going to see what level you are at now." Harry said. He turned around to get some parchment and a quill.

"Now!" hissed James to Sirius.

They silently put the spell on Snape.

"Mr. Potter and Mr. Black!" Harry said abruptly.

"Shit." Sirius said under his breath.

Harry turned around. His emerald green eyes were now piercing silver.

"What would you like to tell the class what you did to Mr. Snape?" Harry asked, his eyes flashing dangerously.

"How'd you know?" Sirius demanded.

Harry grinned with little amusement and pointed at his gleaming silver eyes. Everyone turned to look at Snape. They all started to laugh, and Snape flushed with embarrassment and anger.

"Silence!" Harry boomed. The laughter subsided immediately.

"God, what were you thinking? Change him back!" Lily cried at Sirius and James angrily.

"I don't need any help from you, you filthy little Mudblood." Snape said coldly.

"Gryffindor kicks Slytherin arse." Snape recited. He looked surprised at those words that he said.

Harry felt a smile creep up but stopped it just in time.

"Take that back. Apologize to Lily." James said in a dangerously soft voice. He and Sirius took their wands out as Snape took out his.

"Never. I will not sink so low as that." Snape said icily.

"APOLOGIZE!" James roared angrily. Sirius glared dangerously at Snape and tightened his grip on his wand.

Suddenly, all of their wands flew out of their hands.

"Enough!" Harry yelled angrily. Harry had all of their wands in his hand, but not his own. Harry's eyes flashed dangerously.

"I will not tolerate this behavior in my classroom!" he said angrily.

"H-how'd you do that without wand!" Sirius stuttered.

"Wandless magic." Harry answered through his anger. The bell rang but nobody moved a muscle.

"No homework, seeing that we did not get to anything today. Messrs. Black, Potter, and Snape kindly stay so I can organize your punishments." Harry growled. Everyone else scrambled out of the classroom.

"Messrs. Potter and Black, you will have detention with me tonight after dinner. Ten points off each. Mr. Snape, fifteen points off for using that grotesque word for muggle borns. If I ever hear you saying that word in my classroom again, it will be more than just a few points. All of you, detentions tomorrow night after dinner with me for having your wands out ready for a duel." Harry said. His eyes were turning back normal. All three nodded. Harry got rid of Snape's Gryffindor Couture without a wand in five seconds and wrote passes for each of them.

"You may go." Harry said stiffly.

His head was throbbing and he was tired. He didn't notice that two people standing two feet away from his desk.

"Er, Professor?" It was Sirius.

Harry looked up to see James and Sirius. It pained him greatly to see Sirusagain, for he hadn't seen him in almost 4 years. As for James, Harry never really knew him, but it was still hard for him to see his father.

"We're really sorry for screwing up your class today. We didn't mean to cause too much trouble-"at those words, Harry snorted.

"Well, a bit of trouble, but not to get you too angry. Anyway, we're really sorry for what we did." James said.

Harry sighed. "It's alright. It wasn't too much...I've gotten into loads of trouble when I was at school." Harry said.

"Oh?" Sirius said with a grin. "Do tell!"

"Sorry guys, but I do believe you have Potions class now?" Harry said smiling. They both groaned.

"I know how you feel, but life's tough. Hardly fair these days..." Harry said quietly as he sighed.

"Er..." James said, not knowing what else to say.

"Well, you two should get to Potions. I'll see you all at lunch." Harry said. He lightly waved a hand and the door opened. James and Sirius slowly walked towards the door when Harry suddenly said, "Accio Marauder's Map!" A parchment flew out of James' bag and into Harry's hand.

The two boys spun around and stared wide eyed at their professor. They cautiously walked to Harry's desk.

"How'd you know!" Sirius cried frantically.

Harry chuckled. "Ask me no questions and I'll tell you no lies." he picked up one of Fred and George's old sayings. But inside, he was very anxious. What if his name actually showed up? He really hoped they hadn't been using it for a while...

"Hmmm... I solemnly swear I am up to no good." Harry said quietly, tapping the parchment with his wand. And there he saw it. Harry Potter. Making sure the James and Sirius couldn't see or hear this, he muttered a spell that changed his last name to Donovan.

"H-how'd you know?" Sirius asked nervously.

"Ah- that would be telling, wouldn't it?" Harry said mischievously smiling.

"Y-you won't tell anyone, will you?" James asked nervously, looking straight at Harry.

"Of course not. It'll take all the fun out of everything! Mischief managed." Harry smiled reassuringly.

"Really?" Sirius asked doubtfully.

"Really." Harry said. "You two should really get to your Potions class. Professor Courtley will be after my skin if I keep you guys too late."