Harry stumbled across Cho no more than seven times the next day. Harry excused himself from talking to her for long by saying he was late for a class or he had to get to the library to do some homework. Every time a pang of guilt filled his chest as he left her standing alone clenching books closely to her chest.

"Harry? Are you all right?" Hermione whispered in their Potions lesson.

"Huh? Oh, yeah, I'm fine." Harry replied, snapping out of his daydream.

He had been thinking about Kai and Madame Pomfrey. He had decided at the end of the lesson to stay behind and ask Snape if he had found the antidote.

"Harry! You've forgotten this!" Hermione quickly grabbed his hand, stopping him from pouring the wrong ingredient into his cauldron.

Adding the right ingredient. Hermione cast a suspicious eye at Harry and then at Tally on his other side. Once Hermione had looked away, Tally took a deep breath and her fingers found her way to his hand. He looked down at their entwined fingers and smiled.

"Potter, bring your potion up here." Snape said coldly.

"Yes sir." Harry replied automatically. Tally's hand reclined back into her lap and she stirred her potion half-heartedly.

Pouring some of his potion into a cup he took it up to Professor Snape and watched as he examined it.

"You may not have noticed Potter, but this is the potion needed to revive Madame Pomfrey and the friend of yours."

"Is it really? I didn't notice."

"I didn't think you would. On the other hand, your potion is useless. I clearly stated to add the Armadillo Bile before adding the Wolfs Bane."

Harry looked at his potion and smiled.

"I did." He said.

"I beg your pardon?" Snape replied sharply.

"I did." Harry repeated, looking into the steely black eyes that were now glinting dangerously.

"And what makes you think you are correct?"

"Because I didn't put it in. Hermione did." Harry said, he could help but smile.

"Granger, is this true?" Snape asked shooting his evil glare at her.

"Yes sir." Hermione said quietly, still stirring her own potion.

"Ten points from Gryffindor. I have told you countless times not to do other people's work for them."

Harry looked at Hermione and then at Snape. Without realizing what he was doing, his hand reached out for his cup and he tipped it over Snape's greasy head. The Gryffindors in the room were cracking up in laughter.

Tally looked at Harry with the same expression Hermione used so often, a mix of admiration and horror. Hermione and Ron both had the same expressions, but Ron could help but laugh with the others.

"Fifty points from Gryffindor! And a weeks worth -"

"Detentions don't work for me Snivelly." Harry said loudly before Snape could finish dishing out detentions.

"What did you call me?" Snape's pupils narrowed.

"Wasn't that your nickname? Or was it Snivellus?" Harry asked him. He had touched a nerve.

"You – You're every bit as arrogant as your father!"

"Like you've told me so often, when will you tire Snivelly?" Harry asked, sounding identical to his father.

"Your father was a -" Harry pointed his wand directly at Snape's greasy forehead.

"I dare you to finish that sentence."

Snape's voice faltered. He began cursing under his breath. The bell went and Harry turned to leave.

"Oh and Snivelly, wash your mouth out, that amount of cursing can't set a good example for your Slytherins. Scourgify!"

Pink bubbles issued from Snapes mouth, choking him. Hermione gasped and shouted the counter-curse.

"Harry, move!" Ron grabbed his arm.

"You're identical to your father in more ways than one Potter! Arrogance is just one of them."

Harry knew exactly what to do. He pointed his wand over his shoulder. He looked back and laughed with the Gryffindors. Snape was hanging upside down, his robes falling over his face, showing a pair of dirty grey underwear.

"Mudbloods might be a disagree to Pure bloods Snivelly, but my mother was kind hearted, you're the arrogant one, she stopped my father from kicking your ass into orbit." Harry shouted as Ron dragged his around a corner.

"Harry why the hell did you do that? He's going to go to Dumbledore! You'll get expelled for sure!" Hermione shouted at him.

"Calm down! God blimey Hermione, you need to take a chill pill! My father taught me how to do that! Wasn't it hilarious?"

"Not saying it wasn't funny Harry, but think about it. You're making it worse for yourself." Ron said gravely.

"How could your father teach you that?" Hermione asked suspiciously.

Harry laughed and decided it might be time to tell them about what he had seen in Snapes Pensieve.

"He WHAT?" Ron laughed half an hour later.

He, Harry, Hermione and Tally were sitting under the beech tree, Harry had seen in the Pensieve.

"Right here." Harry replied.

"Harry, did he?" Hermione asked seriously.

"I don't know, Snape pulled me out before I could see."

"Harry! That's hilarious!" Ron gasped clutching his side.

"Ron! You're a Prefect!"

"So are you but you didn't stop Harry."

"Neither did Malfoy. That's what puzzles me."

"Hermione, you think too much, just give it a rest will you?" Harry asked her.

"Easy for you to say, you never think."

"Careful Hermione, Harry might flip you upside down and threaten to pull your pants off." Ron warned.

Every one laughed, even Hermione. The Oak doors slammed open and Snape marched out towards them.

"Don't do anything harsh Harry." Hermione whispered.

Every one was looking at them. Snape stopped right in front of Harry, his pupils merely slits, breathing heavily with his teeth bared.

"Didn't think you come back here after what happened." Harry said, looking up at Snapes chalk white face.

Snape pulled out his wand. Harry eyed it and stood up.

"Hex me. I know you want to." Harry dared him.

"Believe me Potter, I've never wanted to do this more in my whole life."

"Then stop gassing and get on with it." Harry said faking a yawn.

Snape shot a spell Harry had never heard of at him. Harry laughed when the get of poisonous green stopped in mid air and shot backwards at Snape. He fell to the ground not moving at all. Hermione gasped as Snape's skin turned a nasty shade of blue. Ice crystals covered his greasy hair and spread to the shocked look on his face.

"Hermione?" Harry asked not taking his eyes off Snape.

"I don't know! Harry we have to do something!"

The ice was spreading quickly over Snape's body.

"Heat. Hermione flames!" Ron shouted.

"Right."

Hermione conjured up her blue flames and placed them around Snapes body. The ice began to melt, but so did Snapes body.

"Put it out!" Tally shouted.

The flames died instantly. Snapes nose was melted badly and his left temple had nearly disintegrated completely.

"Get him up to the hospital wing." Hermione said.

"Uh, no thanks, I might catch something." Harry replied.

"Oh fine."

Hermione conjured up a stretcher and rolled Snapes lifeless frozen body onto it. She levitated it into the air and left Ron, Hermione and Tally standing under the beech tree.