A/N: Okay, next chapter. I know it says chapter 5 on the thingy, but I didn't count chapter 1 as a chapter because it's the prolouge. Anyway, read on.

Chapter 4: The good, the bad, and the technically advanced

"Who is he?"

"I don't know!"

"Why doesn't he come to classes?"

"I heard he'd graduated."

"Is he a new professor?"

"He looks too young."

Whispers followed him wherever he went nowadays. They had in the past too, but then they were reverent. Now they were.different.

He didn't like going through the full corridors. He got too many looks. He was forced to eat with everyone else in the Great Hall. Fortunately, he got to eat at the staff table with the teachers. He was known around the school as 'the new professor' even though he didn't actually teach. No one knew his real name, Harry made sure of it. Besides, who would believe him if he told them?

"I don't know what is going on," Harry heard some of them say in scared whispers. "I heard there's some kind of mass murderer in the streets who goes around killing people.for fun!"

Harry would shake his head. He knew the world wasn't prepared for what was coming. He'd tried to tell rest of the professors his ideas, but they dismissed him as a frightened student. It was awful being 16 again. People nowadays had no respect for their elders.

"Mr. Potter!" Professor Grander came racing around the corner. He was the only one in the school who thought of him as the legend and not as the 16- year-old standing before them.

Harry turned, glancing uneasily around the, thankfully, empty hall. It wouldn't be good have any students knowing his name.

"There's no one here," Grander said. "All the students are in class. This is my off period. But I was wondering if you could perhaps stand in for my next class."

Harry raised his eyebrows. "And what are the students to call me, Professor Harry Potter?"

Grander shook his head. "I know this isn't a very convenient time, but I have to send a message to the ministry. I think I know where Voldemort will strike next. I dare not send it by owl in case it's intercepted."

Harry nodded. "I'll do it. There really isn't anything better to do."

Grander nodded thankfully. "Thank you!" He dashed off down the hall in a great hurry.

Harry headed toward the History of Magic classroom. He'd quickly found out about every recent edition in every corner of Hogwarts. There were quite a few, but some things never change, Hogwarts among them.

He walked into the classroom and sat down at the desk. The previous hour wasn't over yet so the classroom was still empty. He picked up a text book and flipped it open. After a brief glance, he closed it. He had a thousand year of history to catch up on! How was he supposed to get through this class?

He grit his teeth and opened the book again. He was going to have to know this stuff. After all, he didn't have a clue what he was supposed to be teaching.

He was only through the first lesson when he heard the bell ring. He quickly closed the book and set it aside. He rummaged around in the desk to see if there was a roll sheet or something to tell him who he was teaching.

People started coming in, throwing him questioning looks. Harry tried to look professional, but the truth was, he had never gone into teaching because he.well.couldn't teach. Now he had to teach the most boring class of all and try to make it interesting.

The bell rang again. Class was supposed to start.

Harry grabbed the roll sheet and looked around. Either this class was always silent, or they really wanted to know who he was. Either way, he had their undivided attention. He cleared his throat, unsure where to begin.

"Er.Professor Grander had to send a message to the Ministry of Magic and he asked me to fill in for him. Now, he doesn't seem to have left a sheet or anything explaining what you were going over-yes?"

A girl had raised her hand. "Professor, you could always check the computer over there. That usually has everything in it."

Harry looked over his shoulder. There was the computer. He wasn't quite sure how to use it. There seemed to be a lot more keys than he remembered.

"Er.that's okay," Harry said. "Er.I'll just ask you."

The class looked at each other, surprised. Harry knew he must look stupid.

"We were going over the goblin rebellion of 2030."

Harry sighed in relief. This was something he knew all about. After all, he'd lived through it. "Ah, okay. Now how much have you covered?"

"We've only read the chapter. Professor Grander said he'd cover it today. That's about all we know."

"Even better," Harry said. "Now, I'm going to assume you've had some of this before?" He looked around questioningly.

"The rebellions kind of blur together once you've heard about them all. They're really not that interesting," one boy said. Harry could already tell that this was one of the troublemakers.

"Then you've never covered this rebellion before," Harry said. "Because there was a major difference in this rebellion than in the ones before it. Can anyone tell me what that was?"

No one spoke up.

"Okay, can someone tell me what happened a few years before that?"

A girl tentatively raised her hand.

"Yes?"

"The defeat of Voldemort?"

"Exactly," Harry said, pleased that he wasn't going to have to go over all this. "This caused the entire wizarding world to be completely unprepared for what was coming. The Ministry-"

"Can we just see the video and be done with it?" that same obnoxious boy asked.

Harry was confused again. "Er.video?"

"Yeah," the boy said. "The video. You know, the ones in the 3D imaging device? When were you born, 2740?"

"Not exactly," Harry said. "But I am a little rusty."

"Why? Have you been living under a rock?"

Harry pushed back the anger he felt at these words. He had always been treated with respect! He deserved their respect! He had worked hard to earn it and it was suddenly disappearing before his eyes. Well, he would just have to get it back.

He forced himself to ignore the comment. "I'm not going to show some video on some 3D device because it sounds to me like it's really not helping you learn anything. Therefore, this is going to be a practical lesson."

The kids looked at each other.

"You mean.use magic?" a girl asked. "How much?"

"How much do you know?"

"Not that much," the obnoxious boy said. The girl glared at him.

Harry looked directly at the boy, his bright green eyes piercing into his, making him look away. "What's your name?"

"Ryan," the boy said.

"Okay, Ryan," Harry said. "How about you come up to the front and you can be my first victim."

Ryan slowly got out of his seat. Harry could tell immediately that he knew no more magic than a first year. This was not a good sign.

Ryan got to the front of the classroom, his smirk firmly in place, ready to poke as much fun at this 'young' professor as he possibly could. Harry smiled a little.

"Okay, Ryan. I'm going to ask you some questions over the goblin rebellion. If you answer them correctly, no harm is done. If you answer them incorrectly, that's one more page of homework I'm going to assign you to do."

The class groaned.

"What's wrong?" Harry asked them, grinning. "You're not getting his homework."

Harry left the class to wondering, if they didn't already understand, and turned to look at Ryan. "What year did the rebellion begin?"

Ryan thought for a moment. "2030?"

"What year did it end?"

"Er.2031?"

"Wrong. One page. Who was the main goblin leader?"

"Griphook?"

"Wrong. 2 pages. Who was Griphook?"

Harry fired 10 questions before letting Ryan sit down with 9 pages of homework. Then he called the next person up. He continued this until he had finished everyone in the class. They then had 5 minutes of free time before the bell rang.

Some of them were looking unhappily at him when they left while others were skipping out, having no homework at all. Harry figured he might actually be good at this teaching thing.

The last few people were just milling out when Grander came in. "Hello! How did class go?"

"Fine," Harry said. "I assigned homework."

"Good," Grander said. "Er.did you find my lesson plans?"

"Lesson plans?" Harry asked blankly.

"They were on the computer."

"Ah," Harry said. "No. I didn't want to attempt to turn it on."

"Then what did you do all hour?" Grander asked. "Did you at least find the videos?"

Harry sighed. "Professor Grander, I didn't find a single thing. I spent the entire class quizzing them on what they were supposed to read. Did you know that over half the class didn't do their reading assignment? They all have a lot of homework right now."

"You assigned homework to all those who didn't do the reading assignment?"

Harry sighed and explained what he'd done. "I didn't particularly like that Ryan kid."

"You get used to him," Grander said. "Detentions don't really help. He doesn't really care. The problem is, he's influencing those children around him that do care. Why is it the troublemakers are always the popular ones?"

Harry decided to change the subject. "Well, he's got 9 pages of homework to turn in next class. He was actually pretty well behaved after I made him look like an idiot."

"Maybe he'll do the homework next time," Grander said, trying to hide a smile.

A strange sounding bell rang from somewhere. Grander started, a grin on his face. Outside the room, people were quickly setting their stuff down and pulling things out of their bags.

Grander hurried to a cabinet and pulled out two pairs of glasses. He threw one to Harry. "Hurry! Put these on!"

Confused, Harry put on the glasses. He was immediately in the stands of what looked like a Quidditch field. There were people popping into place all around him. A few people were suddenly appearing on the ground below. Harry looked around in confusion. What was this? He quickly took the glasses off.

He was back in the classroom.

"Put them on!" Grander said. "They're kicking off!"

Harry hesitated but put the glasses back on. Sure enough, he was back in the stands. The players were in the air. Four balls appeared in the sky. One of them, a tiny golden one, darted off. Each team tried to grab the soccer ball sized red one while the other two balls aimed for the players. This was Quidditch! Harry opened his mouth in shock. What happened to the field? What happened to the brooms? What happen to Quidditch?

He could keep his mind on the game. He kept noticing things, like how each of the brooms went the same speed and how the Bludgers flew in front of the player's faces instead of hitting them.

The game ended with the Gryffindors victorious over the Hufflepuffs. Harry pulled off his glasses, unable to watch anymore.

"Put them back on!" Grander said. "They're doing a lap of honor!"

"What do you mean?" Harry snapped. "They're not really there! The Bludgers don't hit people and there's a serious lack of actually being there! At least tell me the actual players are on the brooms!"

Grander looked for a moment like he thought Harry was joking. He took off his 3D glasses and looked at him. "Just how long has it been since you've been to a Quid game?"

"Quidditch!" Harry yelled. "That's not Quidditch! That's some stupid form of it you've created to make the game more technologically advanced! My God, don't you realize that technology is killing you?"

"What do you mean by that?" Grander asked, surprised at the outburst.

"I mean, Voldemort is out there! He's killing you off one by one and this stupid form of a game is proof that you're not ready! You're sitting here when you should be out there! Please tell me you understand this!"

"I don't," Grander said. "What's wrong with Quid?"

"Quid?" Harry felt anger well up inside him. "It's Quidditch! Nothing's wrong with Quidditch! Something's wrong with this!" He held up the glasses. "This technology and this stupid thing you call life! Don't you realize that Voldemort's going to kill you all off? He's not going to have any mercy! He's not going to cower before a virtual reality world! You're underestimating him and you're all going to die because of it! You can't stop Voldemort through technology! You have to stop him through magic! Because your stupid computers can only take you so far!"

Harry hardly noticed he was making a scene. The students had taken off their 3D glasses and were crowded around the room, trying to see who was yelling.

Harry glared for a second before grabbing his wand and Apparating. He had long learned that almost all of the defensive shields around the castle were down. Otherwise, those computers wouldn't work. Apparating wasn't going to be a problem.

A/N: Okay, I just want to say that I have written most of this story already (though I am in no way done). I was asked, however, if I was going to bring Ron and Hermione back. I honestly haven't thought about it. I mean, I haven't intended to, but if you think it's a good idea, I'll try to find a way to bring them in though maybe just a ghost or portrait or something of the sort. Only if you think it's a good idea. Review!