The school soon learned that their new professor was really nice, and that he was very powerful. They also learned that he showed no favoritism and he won't tolerate any trash in his class. He could rage on and on if he was extremely mad. The school learned not to get on the bad side of Professor Donovan.

It was soon December and it was starting to snow. Harry visited Hagrid many times, but it was hard not to talk to him like he used to, in the future.

One day, before breakfast, Dumbledore wanted Harry to come to his office.

"You wanted to see me, Albus?" Harry said when he apparated to Dumbledore's office.

"Yes, Harry, sit down." Dumbledore said.

Harry sat down across from Dumbledore. Fawkes, the Pheonix, swooped down and landed on Harry's shoulder.

"Ah, she seems to like you a lot. She's not very trusting to many people, and she's warming up to you and you just came here!" Dumbledore chuckled.

Harry could only give a smile. "I have, er, been here many times in the future." emphasizing on the word 'many'.

They seemed to have a staring contest for a while, until Dumbledore spoke.

"You're a very powerful wizard, Harry."

"I've noticed." Harry said, without realizing that he was being cheeky with the headmaster.

"Have you taught them the Unforgivables yet?" Dumbledore asked.

"I was going to teach them that today. Why?" Harry said with a look of confusion.

"It is very important, for dark creatures roam. These are the dark times and they need to understand." Dumbledore said carefully.

By the end of the visit, Harry shook hand with Dumbledore. Right when his fingers touched Dumbledore's, he had a premonition. After a minute or two, Harry collapsed into a seat.

"What is it, Harry?" Dumbledore asked, concerned and alarmed.

"Voldemort's going to attack Hogwarts at some ball..." Harry mumbled, with his head in his hands.

"What ball? Do you know which occasion?" Dumbledore asked immediately.

"I'm guessing Christmas." Harry said miserably. He had wanted a nice vacation, but he probably had to help fight.

"As you know, premonitions are meant to occur, so we will have to have the ball. It will be on December 30th, after the holidays." Dumbledore said with finality. Harry nodded to show he understood.

"You should get to breakfast." Dumbledore declared.

"I need to go to my chambers first." Harry said, getting up.

"Very well, I'll be at the Great Hall." Dumbledore said, getting up also. Harry nodded, then apparated into his rooms.

Harry collapsed onto a comfortable armchair when he got to his rooms.

"Oh, what have I gotten myself into?" Harry moaned. He sat there for a minute to recollect himself and then apparated to the Great Hall.

When he got there the whole room was silent. Harry guessed Dumbledore was in the middle of a speech when Harry apparated right in the middle of the Great Hall. There was silence until the doors of the Great Hall opened with a bang. A cloaked hooded figure came striding in and immediately walked to Harry and gave him a loud, hard slap across his face. He staggered back, apparently flabbergasted.

Every single person was thinking the same thing: The person that slapped Harry was really in for it. They just slapped the very powerful professor that didn't take shit from anyone.

Instead of a curse or something bad, Harry gave a happy yelp and hugged that person really hard. The whole room was silent.

"Harry James Potter!" that cloaked figure hissed only so Harry could hear. Then the figure said more loudly, "How dare you go off not telling anyone, you prat! You had me sick with worry! Ron's already sick and he doesn't need another problem added on! Everyone's worried about you! Ginny nearly died from devastation! How selfish are you? You could've at least told someone!"

Then the cloaked figure looked around, only noticing, now, that they were in a room full of people.

"Oh, my." the figure said softly.

"Hermione!" Harry said happily.

"We need to talk." Hermione said as she pulled down her hood and took her cloak off. Hermione had changed a lot over the years. Her figure was more curved, her hair, golden, not a mass of bushy hair anymore, but in elegant waves. She was very pretty and was bout half a foot shorter than Harry.

"Yes, we do." Harry agreed. He looked around at everyone. When he got to Professor Dumbledore, he saw that the headmaster had an amused look on his face. Everyone was staring at him and Hermione.

"Er- hehe." Harry chuckled feebly. He apparated, holding Hermione's arm.

"Why are you here?" Harry asked when they were at his chambers.

"Because... Oh, Harry! Nobody knew where you went, so I visited Dumbledore. I knew he knew where you were so I er- persuaded him to tell me and immediately take me to you." Hermione answered.

"Oh." Harry said dumbly. There was a knock. Harry used his silver eyes to see who it was. It was Dumbledore.

"Ah, Harry. Care to tell me what is going on?" Dumbledore asked politely.

"Sure." Harry grinned.

"Hermione, here, is also from the future. She's one of my best friends and she's dating my other best friend, Ron Weasley." Harry said brightly.

"Hermione Granger, nice to meet you." Hermione said politely.

"You may stay in Harry's chambers if you wish. I'll make another room. You can also assist Harry in his DADA classes." Dumbledore told Hermione.

"That would be wonderful, thank you." Hermione said politely. "Er-when are we?"

"1976." Harry answered.

"The Head Boy and Girl will be coming soon to talk about the ball." Dumbledore said, mostly to Harry.

"Alright." Harry said nodding.

"Wait, 1976...that would mean-"Hermione said.

"Er-professor?" a voice asked. It was James and Lily.

"Oh, Merlin." Hermione whispered, her eyes wide. With one look at them, she fainted on Harry's lap.

"Er...Did we miss something here?" James asked, looking at the unconscious Hermione.

"That's not important. Sit down, we need to explain." Harry said hastily.

"So, that's Hermione, one of your best friends." James said sitting across from Harry.

"Yeah." Harry grinned. Dumbledore raised his eyebrow, but Harry just shrugged it off.

"As I was trying to tell the Great Hall earlier," Dumbledore paused and glanced at Hermione and Harry. "We will be having a Christmas Ball on the 30th of December."

James let out a loud cheer and Lily scowled at his immaturity.

"Go on, Professor." Lily said politely.

"Yes, well, during the Ball, Voldemort and his Death Eaters will attack." Dumbledore said clearly.

"What? Why? How!" Lily cried.

"Lily, calm down…" James soothed. Lily finally calmed down. Then Hermione woke up.

"What happened?" she asked groggily. Then she saw Lily and James. She nearly fainted again.

"Hermione, this is Lily Evans and James Potter, two of my students. Head Boy and Girl." Harry said slowly and clearly.

"Okay, I'm not mental!" Hermione snapped.

"You know what Professor, I fancy a long talk with my old friend, do you think you could tell them until we come back? We'll just be in the next room." Harry said.

"Of course." Dumbledore said.

"Thank you. Here's some tea." Harry added. With a wave of his hand, three mugs of tea appeared on the small table between the couches and chairs.

Harry and Hermione walked to Harry's bedroom. Harry sat on his bed and Hermione sat next to him.

"So...what do you want to know?" Harry asked.

"Everything." Hermione simply said.

"Well..." Harry started. Then he rambled about everything that he did during the past and school life...well, basically everything.

"I'll have to go back when Ron gets out of St. Mungo's. That'll be in about two months or so. You're coming back at the end of the year?" Hermione asked. Harry nodded.

- - - -

James and Lily were walking towards the common room to get their books. They separated to go to their own group of friends to go to Defense Against the Dark Arts class.

When everyone was seated for DADA, Harry started to speak.

"Today, we will be learning about the Unforgivable Curses." Harry said. He saw many shiver.

"Can anyone tell me one of the curses and about it?" Harry asked. A few hands crept up.

"Mr. Black?"

"The Imperius Curse. It makes the person who uses it make another person listen to their commands." Sirius said.

"Correct. Miss. Evans?" Harry said.

"The Cruciatus Curse. It gives you excruciating pain." Lily said unwaveringly.

"Correct," Harry nodded, "the Cruciatus Curse does give you immense pain, like a thousand knives stabbing into you. Some may even go insane if they aren't powerful to go through it. It can't be blocked. The only one you can fight is the Imperius Curse, but that's very hard to do." Harry said.

Snape raised his hand.

"Yes, Mr. Snape?" Harry said.

"You talk about the curses as if you've experienced them." Snape said calmly.

"I do?" Harry asked. He chuckled lightly.

"Have you?" Snape asked.

"Yes, I have. Many times." Harry said deadly quietly. "What's the last curse? Mr. Potter?"

"Avada Kedavra." James answered a bit shakily, but clearly. "The killing curse."

"Yes." Harry nodded. "I have been given permission to perform the Imperius Curse on all of you today."

Almost everyone gasped.

"But that's illegal! You can't do that!" Lucius Malfoy protested angrily.

'Since when did you start caring?' Harry thought to himself.

Instead he said, "You will need to learn this way. This is the way I learned to fight it. It's going to be very hard, and I don't expect any of you to fight it thoroughly today." Harry said firmly.

"Sirius Black." Harry said. Sirius came up looking very determined.

With a pained look on his face, Harry cried, "Imperio!"

Slowly, Sirius hopped on one foot five times. After the curse was lifted, Sirius looked very disappointed.

"It's okay, in fact that was very good! You didn't manage to fight it all the way, but you did it slowly as if fighting it. You may be seated." Harry said. "Lily Evans."

Harry performed the curse on Lily. Lily very slowly walked over to James and gave him a big, huge hug. After the curse was lifted, Lily looked really mad at herself for hugging James and James looked ecstatic and shocked.

Harry kept performing the curse, and almost everyone (especially the Slytherins) performed Harry's order without a good fight.

When Harry got to James, he was surprised at the result. Harry made James jump on a desk, the same thing Harry's teacher (Mad Eye Moody) made him do. James got up on a desk, but it looked like he was trying to do both, fight it and jump, so he ended up falling headfirst. The same result Harry had!

"Owww! Ugh, bloody hell, that hurt like hell!" James groaned, trying to get up.

"You okay Prongs?" Sirius asked, trying not to laugh.

"I hope so." James groaned, clutching his head. There was a little blood trickling down his forehead.

"Here, let me help." Harry said walking to James. He put his had just centimeters away from James' cut and closed his eyes. Five seconds later, James' cut was healed.

"Thanks, Professor." James said, rubbing his forehead gingerly.

"Mr. Potter, that was brilliant! Same result as me!" Harry said grinning.

"What do you mean?" James asked, confused.

"When I was in my 4th year, my DADA professor made me jump on a desk, and your result was the same as mine." Harry explained.

"Oh." James said.

"For those who couldn't get it at all, who can tell me what it-"Harry started, but the door opened.

"Oh, sorry Harry, I didn't know you had a class." It was Hermione.

"That's okay; you can stay here for the rest of the class if you want." Harry said smiling.

"Okay, thanks." Hermione said. She walked over and sat on Harry's desk.

"This is Hermione Granger, one of my best friends. She's er, visiting me for a month or two." Harry introduced her.

Sirius raised his hand. "Yes Mr. Black?" Harry said.

Hermione forgot Sirius was here too, and her eyes got wide.

'Please don't faint again!' Harry pleaded silently.

"How old are you, Ms. Granger?"

That question startled both Hermione and Harry.

"Er, I'm actually 17, but I'm turning 18 on the 27th (A/N: I know Hermione's b-day is September 19th, but oh well). And call me Hermione." Hermione said.

"As I was saying, for those who couldn't fight the curse at all, what did you feel?" Harry asked.

Peter raised his hand. "Yes, Mr. Pettigrew?" Harry asked. He heard Hermione shift uncomfortably behind him.

"It felt like it was the right thing to do. I felt happy to do it and calm." Peter answered.

"Very good description. Who would-"Harry was interrupted again.

"Hang on-you did the-?" Hermione asked, her eyes widening.

Harry nodded. Hermione shifted uncomfortably again.

"Well, as I was saying yet again, for those that tried to fight it, who would like to tell me how it felt?" Harry asked.

James raised his hand.

"Mr. Potter?"

"I heard two voices inside my head. One said to jump and the other said it was stupid. I guess I did both."

"That reminds me," Harry said grinning, "Remember, Mione, when our 4th year professor turned Malkey into a ferret?"

Hermione looked confused, but then she laughed, getting it. "Yeah, that was really amusing, Harry, but you've got to teach your class." Hermione said seriously.

Harry rolled his eyes. "For homework, I want a foot writing on the Unforgivables and the effects of them." Harry called as the bell rang.

When everyone was out, Harry started to talk to Hermione.

"You're a great Professor, Harry." Hermione said to Harry.

"Thanks, but I like being an Auror better...More action." Harry said. "I really need you help, Hermione."

"For what?"

"I'm trying to teach them about Patronuses but..." Harry faltered.

"You can't teach them without conjuring you patronus figure, which is your father- or, Prongs." Hermione finished.

"Exactly." Harry said.

"I could help you teach it, and I'll conjure my Patronus so you won't have to do yours. You can just teach them the theory and stuff." Hermione suggested.

"Thanks so much. I don't have anymore classes so I'll treat you to some butterbeer at Hogsmeade." Harry said.

"Sure!"

Harry took Hermione's hand and apparated to the Three Broomsticks.

"Go get a table. I'll get the butterbeers." Harry said.

He got two butterbeers and walked over to a table where Hermione was sitting. They were sipping their butterbeers silently, and Harry was looking around, when Harry grinned He whispered something to Hermione and she smiled. Harry muttered something and a whooshing sound came closer to them.

"You can take off that invisibility cloak." Harry muttered.

James, Sirius, Remus, and Peter appeared right in front of Hermione and Harry. James and Sirius were grinning, Remus was looking down, and Peter looked scared and nervous.

"Free period?" Harry asked raising his eyebrows.

"Yeah, we were, uh, hungry." Sirius said.

"Don't worry, I won't tell, I never do, do I?" Harry said, answering the unasked question. They all shook their heads, grinning.

"Do you guys want to sit with us?" Hermione asked.

"Sure." Sirius said, giving Hermione a charming smile.

They were all talking about school and laughing at the Marauders' past pranks. When James was in the middle of a story, there was a loud boom and many shrieks and screams were heard. Harry immediately sensed Voldemort and his Death Eaters.

"You four, follow me, but stay under that cloak." Harry said, his eyes flashing to silver. They immediately did.

"Hermione, stay behind me and keep your wand out." Harry ordered quietly.

Once they got outside, Hogsmeade was silent and deserted.

"Well, well, well, what do we have here?" Harry turned to his right and saw a dozen Death Eaters and Voldemort.

"Where is everyone else?" Harry demanded.

Voldemort sneered, "Your students can take that pathetic cloak off of them."

The Marauders appeared behind Harry and beside Hermione, with their wands out.

With three waves of his hand, Harry made all of the Death Eaters disappear.

"How did you do that?" Voldemort asked with interest.

"Power." Harry simply said, smirking.

"Ah...Power, you could do well on my side well before you create problems for me again." Voldemort said.

"I'd rather not. That would create...ah, complications in the future, wouldn't it, Tom?" Harry said coolly.

"You know you want this. There is no good, no evil, only pow-" Voldemort started.

"Eh, don't give me that shit." Harry said rolling his eyes.

"How about bargaining for...one of yours?" Voldemort said. With a wave of his wand, James was in his grasp.

Harry's eyes flashed dangerously. "No…" he growled. "Let him go."

"This would affect your future, wouldn't it, Potter!" Voldemort hissed.

"Too bad I can't kill you in this time. It would save everyone a hell of a lot of trouble." Harry growled.

"Surburbrae Domezda Fervertrae Sivouris!" Harry said clearly. In a flash, James was behind Harry.

"If you join me, I shall spare you everyone's lives." Voldemort offered, his red eyes glinting maliciously.

Harry let out a cold laugh. "Merlin, that's a funny one. How about we duel?" Harry said grinning evily.

Voldemort raised a suspicious eyebrow. "Fine." he said.

"All of you stay back. Hermione, make sure they stay safe, okay?" Harry said, with urgency in his voice.

Hermione nodded. "Be careful, Harry." she whispered. The Marauders just looked at their professor.

'Is he mad? That's Voldemort he's dueling! He can get killed! He just can't!' James thought furiously.

Harry and Voldemort bowed (they slightly tilted their heads, actually), and raised their wands.

"Expelliarmus." Harry said, starting out very easy.

Of course, Voldemort deflected it. "Serpensortia!" Voldemort cried. A snake shot out of his wand.

"Don't attack. If you do, I will be forced to give you immense pain." Harry hissed in Parseltongue.

"You're a Parseltongue!" said Voldemort, clearly surprised.

"No, really?" Harry said sarcastically. With a wave of his hand, he banished the snake to Siberia.

"Crucio!" Voldemort cried.

Harry felt a cold, sharp feeling all over him, but that was all. He didn't writhe, scream, or anything like that anymore. He just went tense and let out a breath. Harry glared at Voldemort.

"Ovulansae!" Harry cried. It caught Voldemort off guard and all five senses disappeared. He couldn't see, hear, taste, smell, or touch. He muttered something that made it subside. They kept shooting curses at each other.

"This is ridiculous." Voldemort finally said. He pointed his wand at James instead.

"Why not erase the problem before it occurs, then?" Voldemort said. "Avada Kedavra!"

"No!" roared Harry. He lunged towards James and took the curse. The last thing he saw was Dumbledore shooting a spell at Voldemort, looking very furious. Then, he drifted into unconsciousness.