DISCLAIMER: I do not own Harry Potter.

A\N: Sorry for the late update.

To Blackguard83: I know Narcissa used a lot of swear words in the last chapter which is totally unlike an eleven-year old but she has been raised in the Darkest of families and she was really shocked on Bella's sorting so she couldn't really help it.

Chapter 8.

Bellatrix was sitting at the back of the Potions classroom, watching Professor Slughorn fawn over Lily Evans for the past ten minutes. She languidly poured random ingredients into her cauldron which was belching copious amounts of grey smoke instead of green sparks.

This is so great. My stupid cousin and his best friend are determined to make my life hell while Lupin clearly suspects something. Evans wanted to be my friend but I insulted her in front of the whole school. My very own sisters are avoiding me, one thinks that I am a pureblood maniac while the other, my very own twin, thinks I have changed sides. My twin sister's fiancé also thinks that I have betrayed the pureblood ideals that I have been supporting all my life. Can this get any worse?

Sniggering from James and Sirius's table often punctuated the silence at Bellatrix's table. They were busy whispering among themselves and shooting smirks at Bellatrix. She glared at them under the cover of the dense smoke from her cauldron. Sirius smirked widely and dropped a fistful of what looked like crushed snake fangs in his cauldron which suddenly began emitting bluish-grey sparks.

'C'mon now, pour it in this vial.' whispered James.

Sirius carefully poured his electric-blue potion in the vial. He took accurate aim and lobbed the vial towards Bellatrix's table. The vial full of the explosive potion smashed on the wooden table, showering Bellatrix with blue drops. Moments later, hot scorch marks appeared on places where the potion had hit Bellatrix. Her face was spotted with red marks, looking as if a child had scribbled over her face with red marker.

I just had to ask, didn't I? You're gonna pay for this.

'Oh my dear, are you alright?' asked Slughorn, finally detaching himself from Lily. After inspecting the scorch marks carefully (Bellatrix bristled), he laughed and said, 'My, my, my, this potion has definitely been tampered with. Whoever did this isn't a very good potioneer!!'

'So aren't you going to punish them Professor?' asked Bellatrix in a tone of forced politeness. She had felt like hexing Slughorn when he laughed at the marks.

'Well, Miss Black, we don't know who it is (Sirius and James laughed openly at that) so we can't really do anything!'

You mean you can't do anything.

'Well then Professor, I suppose I should get going to the Hospital Wing.' Bellatrix walked out of the dungeons, trying her hardest to resist from punching Sirius in the face who had plastered a very aggravating smirk on his lips.

You just wait Mr. Sirius Black. I'm gonna get you back even if it is the last thing I do!

Bellatrix was fuming. Her knuckles were white from clenching her fists too hard. She had resisted from complaining to Slughorn that James and Sirius had been responsible for the prank (she had to think of her mission). But Sirius's expression had driven her up the wall. She just had to wait for the right opportunity and then, Sirius would sincerely repent his actions.

You don't mess with Bellatrix and just get off with nothing. Trust me; you'll be so sorry that you ever dared to mess with me.

Bellatrix walked towards the Hospital Wing where Madam Wallace, the matron, thoroughly fussed over her. After Bellatrix finally lost control, she growled at her and left the Hospital Wing leaving a slightly bewildered and scared Madam Wallace who immediately started searching in her miniature medical library about diseases which caused humans to behave like animals.

Bellatrix pursed through her schedule to find Defense Against the Dark Arts as her next class. As she looked up, she found a familiar sandy-haired Gryffindor ahead of her. With great difficulty, she managed to hitch a smile on her face and went up and tapped the boy on the shoulder.

'Hello, Remus isn't it?'

Remus turned to see Bellatrix smiling brightly at him. 'Hello Bellatrix. You seem quite happy.'

'Of course I am, it's my first day at Hogwarts!' said Bellatrix with fake excitement.

'Well, I would have assumed that a Howler at breakfast and a prank at your first lesson would have lowered your joy to be at Hogwarts considerably.'

Bellatrix's smile disappeared. Remus was looking coldly at her. 'You're not a very good actor, you know. Your smile is as fake as it gets. Don't think that I didn't hear what you said at breakfast. Anyway, I don't know why you're pretending to be so nice but let me tell you one thing, it won't fool me.'

Remus walked inside the classroom. Bellatrix stood shocked but soon it was replaced by a smirk, 'Well, Mr. Lupin, as a matter of fact, I plan to fool you the first of all.'

Bellatrix's thoughts were interrupted by a disturbance in the corridor which looked like a redhead screaming at James Potter.

'You just had to prank her, didn't you? Knowing that she got a Howler and everything at breakfast and must be so upset? I knew that you were a bully but to think that…..'

'Aw c'mon Evans, what's that got to do with you anyways? And she did call you a you-know-what at breakfast. That proves what kind of a person she is and she probably deserved it.' said James, leaning lazily on the stone wall.

'I don't care what she called me at breakfast and who are you to decide whether she deserved it or not?' questioned Lily.

'You know Evans,' interjected Sirius, rising to the defense of his friend. 'You're acting like a hypocrite. I heard you telling Alice that you absolutely disliked 'that Black girl' and she hates you as well, so I don't really see the point of your arguing with James.'

'What is going on here?' said an unfamiliar voice and a tall, dark-haired man wearing spectacles in dark blue robes swept in front of the classroom door. 'Why is there so much commotion?'

'Nothing Professor.' said Lily, throwing a look of loathing at James.

'If it's nothing, then why are you standing outside? Get in, all of you.' said the unfamiliar Professor and he walked inside the classroom.

James grinned at Sirius and they entered the classroom, leaving only Lily and Bellatrix outside. Bellatrix had been hiding behind a suit of armor to eaves drop in James and Lily's conversation. She emerged and called out just as Lily was about to enter: 'Excuse me!'

Lily turned and her face darkened as she saw Bellatrix. 'What's the problem? Hurry up because the professor has already entered the class.' she said coldly.

'Umm……… actually I wanted to thank you for defending me out there……. and I also wanted to apologize for my behavior at breakfast…..I really didn't mean it…..so I just wanted to say…….' rambled Bellatrix. But before she could complete the sentence, Lily turned her back and walked into the Defense classroom.

'Sorry.' Bellatrix completed the sentence to the empty corridor and the suit of armor. 'Wow, she's sure polite.'

Bellatrix entered the classroom to find the Defense Professor glaring at her. 'Why were you lazing outside the classroom? Ten points from Gryffindor for tardiness.'

This invoked a volley of glares from the Gryffindors, all directed towards Bellatrix. She ignored them all and sat at the last bench. And not purposely at all, she ended up sitting right next to Sirius and James's table.

'Good morning class. My name is Professor Watson and I am your teacher for Defense Against the Dark Arts. For your first lesson, I will be teaching you something very advanced for your level. As you all know, Lord Voldemort is out in the open,' a wave of shudders broke out among the students at the name, Bellatrix simply smirked, 'and it is necessary that you learn how to defend yourself even at your young age.' Bellatrix smirked even more widely, 'So, I will be teaching you how to Disarm your opponents, which is a spell that even fifth-years are unable to do. It will probably take you weeks to get a hang of the spell, but I'm expecting every student to do this by the end of the term. Your syllabus includes theory and shooting sparks at your opponents but you will be practicing this spell every once in a while. The incantation is 'Expelliarmus'. Is that clear?'

A wave of muttering broke out as the students were clearly complaining about giving them such a difficult spell in the very first lesson. A few, like Remus Lupin, had taken out their wands and were looking excited at doing the spell. Bellatrix just smirked and twirled her wand.

Expelliarmus? Honestly, do you even call that difficult?

'So, who would like to volunteer to cast the spell first?' enquired Professor Watson, his eyes sweeping over the students. 'Anybody?'

Sirius raised his hand. 'Professor, I would like to volunteer.'

'And your opponent?'

Sirius grinned. 'Professor, I'm sure that my dear cousin, Miss Bellatrix Black, would absolutely love to be my opponent.' He smirked widely.

Big mistake.

Bellatrix raised an eyebrow. She stood up and said, 'Oh certainly. I would definitely love to be Mr. Sirius Black's opponent.' she met his eyes and smirked.

It's payback time.

Sirus and Bellatrix stood in front of the classroom, wands pointing at each other. Professor Watson said, 'On the count of three, both of you will attempt to Disarm one another.'

Mr. Sirius Black, you are now going to realize how painful the consequence is of humiliating Bellatrix Back.

'One, two, three!'

You're history.

'Expelli…'

'Diffindo!' cried Bellatrix, slashing her wand. Sirius yelled and fell to his knees as his robes got ripped and a deep gash appeared in his right thigh. The robes above Sirius's thigh were stained with blood as Sirius's face turned pale. He clutched his bleeding wound tightly.

'Sirius!' cried James as he hurried over to his friend kneeling on the floor. 'Are you alright?'

'Miss Black, I told you only to Disarm, not to use the Cutting Hex!' yelled Professor Watson looking livid. 'Detention and twenty points from Gryffindor!'

'Sorry Professor.' sneered Bellatrix. 'It won't happen again.'

All I had to do was to perform the hex with a little more power. Mission or no mission, I can't let you treat me like a pushover. Oh yeah, serves you right, Mr. Sirius Black.

Most of the class was shooting looks at Bellatrix. Lupin was looking at her calculatingly. Lily was looking absolutely shocked. James was glaring daggers at her but she simply smirked in reply. Narcissa and Lucius were having a hurried conversation. When Bellatrix looked at them, Narcissa caught her eye and shot her a tiny smile. Bellatrix smirked even more. She was feeling on the top of the world. Whispers filled the classroom:

Isn't the Cutting Hex a fourth-year spell?

How on earth did she do it?

Good for Black.

Did you see her expression?

She's pure evil.

Professor Watson waved his wand over Sirius's wound. Bandages flew out of the wand and wrapped tightly around Sirius's thigh. Some of Sirius's color returned. Just then, the bell rang announcing the end of the period.

'C'mon, let's go to the Hospital Wing. Your wound looks pretty deep.' said Professor Watson, lending an arm of support to Sirius. Sirius shot a look of deepest loathing at Bellatrix and staggered out of the classroom.

OK, so all the people I'm supposed to befriend now hate me but I managed to get my revenge. All in all, not a bad day.

A\N: Please, please review!!

I wanted to inform everyone that Bellatrix still remembers a few spells but doesn't have the power necessary to perform the Dark Arts spells as she's only eleven and her core isn't powerful enough yet. But remember she's Bellatrix, so spells like Diffindo are just a piece of cake. I hope you like the first prank played by Sirius and James. They're not very experienced yet, so the prank is quite small but as time passes, the pranks will get better.

I know Bellatrix hasn't made progress with the mission at all as she isn't exactly the diplomatic missions type and she isn't used to it but she's gonna get better as time passes, I promise.