Sure enough they were back at school. Harry was in Dumbledore's office again and watching the next memory.

"Sir, is it true that Professor Merrythought is retiring?" Tom asked.

"Tom, I couldn't tell you if I knew, could I? And by the way, thank you for the pineapple. You're quite right.

It is my favorite. But how did you know?" Slughorn said.

"Intuition." he said.

"Good gracious, is it that time already? Off you go, boys, or Professor Dippett will have us all in detention."

Next was Tom tapping Slughorn's time castle.

"Look sharp, Tom. Don't be caught out of bed after hours. Is something on your mind, Tom?"

"Yes, sir. See, I couldn't think of anyone else to go to. The other professors... Well, they're not like you. They might misunderstand."

"Go on."

"I was in the library the other night. In the restricted section. And I picked something rather odd about this rare magic. I thought perhaps, you could illuminate me. It's called, as I understand it, Horcrux."

"I beg your pardon? I don't know anything about such things and if I did, I wouldn't tell you. Now get out of here at once and don't let me ever catch you mentioning them again!"

When they were gone they sat down.

"Confused? I'd be surprised if you weren't." Dumbledore said.

"I don't understand." he said.

"This is perhaps the most important memory of them all. But it's also a lie. This memory has been tampered with by our old friend, Professor Slughorn himself." Dumbledore said.

"But why would he tamper his own memory?"

"I suppose he's ashamed of himself." Dumbledore said.

"Why?"

He already had an idea why.

"Why indeed. I asked you to get to know him and you did so. Now I want you to persuade him to divulge him his true memory. Anyway you can."

"I don't know him that well sir. Even though I'm in Slytherin now I still don't know him that well." he said.

"This memory is everything. Without it, we're blind. Without it, we leave the fate of our world to chance. You have no choice. You must not fail."

He nodded.

"I'll do the best I can sir." he said.

Then they split up and Harry headed to the common room.

The next day Harry was on his way to potions when he felt his mark go on. It was a little stronger than usual today. He hissed louder than usual, dropped his books and put his hand on his arm. His knees started to buckle but he caught himself.

He picked up his books and then headed to Snape forgetting to copy himself because the pain was so bad today.

When he got there he had trouble walking. While Snape watched him he noticed how he was walking and was a little worried about him.

"Come on Potter, let's go." he said.

So Harry put his books on the table, got changed and headed to Malfoy Manor. He was a little nervous about it this time though because he was going to have to tell him about the memory he saw and had to try and get the real one.

When he got there he sat next to Greyback and waited.

Everyone noticed the look on his face and wondered what he was worried about.

"Alright, Harry I want to know what memory you saw last time." Voldemort said.

He gulped.

"Well, I saw a memory last night of when you asked Slughorn about Horcruxes and found out it was played with by him. And Dumbledore wants me to get the real memory from him."

He felt Voldemort's anger and winced tightly from his scar. Then started rubbing it.

While he did that Voldemort took out his wand. He was furious at him.

"Crucio!"

Then Harry was on the ground screaming for the first time.

"AHHHHHHH!"

Then a few minutes later he was done and was touched by Voldemort on his scar making him screaming louder.

"AHHHHHHHHHHHHHHH!"

While he did that Snape was even more worried about his now favorite student. Everyone else were shocked at how strong of the pain he was hit by causing him to yell for the first time ever.

A few minutes later he was done. Harry had a lot of trouble fighting the pain this time. He took deep shaking breaths and had trouble getting up.

Greyback helped him up and sit back down. Harry opened his mouth to say thanks but couldn't say anything.

Since he wasn't the potions master anymore Snape couldn't give him a pain killer when they got to school.

When they were done Snape had to help him to class. Luckily he had Defense now.

When they got there he sat down next to Daphne and winced tightly. She looked at Draco and he was worried about him to. Then she looked at Harry.

"Harry? You ok?" she asked and put her hand on his shoulder making him hiss and wince tightly.

She took her hand right off of him.

Snape looked at him even more worried but hid it. Harry used a glamour to hide it until they got to the common room.

While they listened to him during class he would look at Harry for a second. His old friends noticed he was in a lot of pain and wondered what was wrong. Ron and Hermione had a feeling it was his scar again.

After classes and dinner Harry, Daphne, Tracy, Draco, Theodore and Blaise were in the common room. They looked at Harry and watched him take the glamour off.

When they saw him they gasped.

"No wonder you hurt too much for me to touch you!" Daphne said.

"Jeez! What did you do?" Blaise asked shocked.

"I told him that I saw a fake memory and Dumbledore needs me to get the real memory of Slughorn telling him about Horcruxes." he said.

When he moved he winced and moaned.

"Kreacher." he called.

"Master Harry call Kreacher?" Then he looked at him in shock. "May Kreacher ask what happened?"

"The Dark Lord was mad at me and something so he hit me with a strong Crucio and my scar for a good five minutes each. Can you please bring me some tea that will make me feel at least a little better please?" he said.

So Kreacher nodded and then went and got him some tea.

Snape came and checked on Harry.

"Are you alright Potter?" he asked.

"Not really. I just asked Kreacher to get me some tea with something to get at least some of the pain out. And after using so much strength on the glamour I'm exhausted."

Then Kreacher came with some tea for Harry, his friends and girlfriend.

"Here you go Master Harry."

"Thanks Kreacher that'll be all for right now."

He bowed and went back to the kitchen.

So they took a cup and when Harry took a sip he started to feel better.

He sighed in relief.

"That's better, still sore but less."

"Good. You deserve it after the pain he gives you." Daphne said.

Everyone else nodded and Snape looked sorry for him. He has been a Death Eater since he was seventeen and no one has ever been hit by the torture curse as long and strong as Harry. Never mind him not having a scar like that and the pain he has to feel when he touches it, close and anger.

The next day Harry went to Slughorn's office to get the memory he needed. He had a plan.

"Ah, Mr. Potter! To what do I owe the pleasure of?" Slughorn asked smiling.

"I was just wondering if you could check something. I found a potions homework from last year I forgot to give to Snape." Harry said innocently.

"Of course I'll check it for you." he smiling.

So he gave him his homework and while Slughorn looked at it Harry took out a pensive and his wand.

"Imperio!" he whispered.

"Give me the memory of the day Tom Riddle brought up horcruxes." he said then handed him a pensive and Slughorn took it out then put it in the pensive.

"Obliviate." Harry said causing Slughorn to forget he gave Harry the memory but still thought he was checking Harry's homework.

When Harry took it off he listened to Slughorn.

"Well Mr. Potter, everything looks correct."

"Thank you sir. I was just checking before I give it to him since it's his homework."

Then he put it in his backpack and headed to Dumbledore.

'I knew that would work.' he thought.