A/N- Okay so I thought I'd try my hand at a Harry Potter Fic, It's set in the third book and goes from there onwards…Thanks to Slytherinmafia who had Beta'd this for me, much love!! Please Review!!

Disclaimer- I don't own anything to do with Harry Potter, don't sue me you won't get anything!

CHAPTER ONE

Pandora watched the Slytherin tables. How she was put in Slytherin she'd never know but, it was practically written that she was to become a Gryffindor, but the hat placed her in the house of her father's enemy 9 years ago and she'd come to terms with that. Not that her father was pleased about it at the time. Now she found herself back in Hogwarts a mere 2 years after graduation to become the potions assistant.

She grinned down at Harry Potter, at the tender age of 12 she had seen him go through so much and she knew that it was far from over. He was starting his 3rd year and she had promised to keep an eye on him…as per her guardian's orders, at 20 years old she still obeyed his word to the letter, even if he wasn't blood related.

She smiled as Dumbledore rose to begin his pre-feast speech as she named it in her 4th year.

"Welcome back to another year at Hogwarts, We have some changes in staffing, this year Defense Against the Dark Arts will be taught by Professor Remus Lupin, Care of Magical Creatures will be taught by our very own Rubeus Hagrid and Finally as an Assistant to Professor Snape Miss Pandora Lupin." His eyes twinkled as he spoke, happy that the students seemed to accept the new additions.

Pandora on the other hand sighed; she was annoyed at how he introduced her. She knew why he had done it and could accept the reason…the students didn't need to be stressed out. If they knew who she really was they would most likely freak out and cause havoc. Yes being known as Pandora Lupin was best for everyone regardless of how she felt, yet again another thing her guardian had implored.

"I know you're not happy, stay with it" Remus voice spoke from beside her and she plastered on a fake smile

"Of course…father" she rolled her eyes, perhaps it was her sarcastic personality or her mischievous streak that had placed in Slytherin. She grinned how she had had fun with the Slytherin's, good times…that her family knew nothing about.

HpHpHp

At the other end of the table Severus Snape stared at the pair, he was annoyed that he not only had to deal with Remus Lupin, but his daughter as his assistant. He would grudgingly agree that she was an excellent potions student during her school days, and that she was tolerable, but she had had a knack for annoying him at some point or another during her schooling and he was sure she hadn't changed much.

What made it worse was she was fond of the boy-who-lived...Harry bloody Potter, a bright side to the whole ordeal was that she had been a Slytherin. He knew how much of a problem her father would have had with that, probably as much as he had a problem with her working alongside him, he smirked, this was a perfect revenge and he didn't have to lift a finger.

As the feast drew to a close and he stood to leave, the woman who had brought on painful thoughts of his schooling approached him with a smile.

"Professor Snape, I look forward to working with you" she held out her hand and he merely ignored it

"Be prepared for tomorrow Miss Lupin" He spat her last name out like it gave off a sour taste

Pandora rolled her eyes and decided to kill him with kindness "I will be, have a good night" she turned on her heel and walked out of the hall alongside Remus, all the while smiling.

Snape glared at her retreating back, she was going to be a painful woman to work with he was sure of it.

He too left the hall and made for the dungeons, it was going to be an interesting year…he had a variety of potions he need to brew for certain reasons, and with his other duties Dumbledore had decided to give him an assistant…which was sure to be interesting.

HpHpHp

Pandora walked into the potions class room 5 minutes before the bell, Clad in Black and deep green robes, very Slytherin like. The room was empty and so she took up a spot in a dark corner waiting for the students to pour in and start making snarky comments about their Potions Master.

Although this was a first year class, so many had not been told about the reputation of Professor Snape or his favoritism, and he didn't disappoint when he marched into the room.

"There will be no foolish wand-waving or silly incantations in this class. As such, I don't expect many of you to appreciate the subtle science and exact art that is potion-making." He snarled, he was scaring the pants of the little kids and she was smiling about it.

"However, for those select few... who possess the predisposition...I can teach you how to bewitch the mind and ensnare the senses. I can tell you how to bottle fame, brew glory, and even put a stopper in death." She bit back a laugh at how typically predictable he could be when it came to his classes.

Harry had told her all about his first and second years and how Snape had acted toward the Gryffindor's, his natural ability to scare the pants out of Longbottom and make an example of the smart girl know as Hermione granger. But over the two previous years Harry and his friends had learned to ignore or simply accept his hard ways.

"Today with the assistance of Miss Lupin, if she decides to show..." Pandora took that moment to step out of the corner and next to the desk behind which he stood. Snape shot her a nasty look as he heard children snicker; he kept a calm and seemingly unaffected look upon his face before continuing

"You will be making the Boil cure potion, open your books to page 385." He waved his wand at the cabinet holding the ingredients and told them to begin.

Pandora moved around the class giving hints and advice whilst Snape sat at his desk marking essays. He was positively furious at what she had done; embarrassed him in front of the class and he couldn't deduct points for it anymore which irked him to no end.

The class passed relatively safely, one first year was sent to the hospital wing when his potion backfired, resulting in boils. When the first years had dispersed and it was just himself and Pandora he spoke up.

"So much like your father, always pulling tricks, making problems!" he stated glaring in annoyance

"I was merely watching the interactions of the students and then their reaction to you...reminds me of my first year. Still pimping the same scary speech I see" She replied smirking and sitting on one of the desks near the front.

"Are you incapable of restraining yourself...Slytherin or not, you are my assistant and will treat me with respect!" his voice was cold and angry Pandora knew at this point she wouldn't push him further...today. She seemingly accepted his statement and let him continue as if he had won so to speak.

"You will prepare this potion for me...I'm sure you're well aware as to why" she glanced down at the page he had handed her assuming this was his way of getting back at her, the Wolfsbane potion.

A/N- there may be an eventual romance further in; you have a say as to whom…Snape or Lucius Malfoy. Please Review and let me know your thoughts and who you'd like to see her with later on.