Will (POV)

"You both should stay away from Potter." Ernie Macmillions tells us. "He's the heir of Slytherin! He's probably already planning your deaths!"

I scoff. "Harry's a nice guy. HIS BEST FRIEND IS A MUGGLEBORN!" I yell.

He looks taken aback. "You heard what Filch-"

"What would Filch know?" Kat sighs. "There's no reason to suspect Harry. I heard his mum was a muggleborn!"

Ernie shuffles nervously. "Then he's a hypocritical racist."

I groan.

"Hey isn't that Harry over there?" Kat asks. She runs over to the raven haired boy, who had been writing an essay a couple tables over.

"HEY HARRY!" She yells, jumping onto his lap. Putting her arms around his neck. "You're not planning my murder, are you?"

"Um… no?" he asks, clearly confused.

Ron chuckles next to him. "Hi Kat."

"Not to be insensitive, but your Mum was a muggleborn right?" she asks.

"Yea…"

I drag Kat off of his lap. "Sorry about her. She's mentally unstable."

She pokes her tongue out at me.

Harry just chuckles. "It's alright, Will. Thanks for not believing any of that rubbish."

"Of course not." I tell him with a small smile, before forcibly dragging Kat away.

"You're an idiot, and have you seen Nico?" I ask. I hadn't seen Nico all day… he does this a lot in the weekends. Like clockwork, every Saturday morning to night he disappears then comes back exhausted…

She goes to open her mouth when I stop her. "You know what? Never mind."

She pouts. "But I had a really good one about him being stuck in a mine with eighteen other vampires!"
I glare at her, before noticing Malfoy walking past, with giggling following him.

I turn my head to see his back, which has a piece of parchment glued to it. Written on it is:

"I apologize for my utter lack of manners and morals.

I am a victim of inbreeding."

I snort with laughter, before turning to a grinning Kat.

"You can't prove I had anything to do with that."

"I didn't say you did." I chuckle before adding. "Nico job."

"Malfoy had just been so cheerful since the Chamber opened. It's sickening." She grumbles.

"Do you think he had anything to do with it?" I whisper.

"I don't know. I heard the chamber contains something that has been trained to kill muggleborns, and you heard him. Then again it's Malfoy, he's not exactly the fastest broom in the shed."

I nod. "And saying that wasn't exactly subtle."

Malfoy storms toward us, apparently Pansy had told him about the note. Shame.

"You filthy mudblood. I hope the creature kills you first." He hisses at her.

"And I hope Nico kills you. Oh wait, I can fight my own battles." She says, standing up to glare at him.

"OUT!" Madam Pince yells. "NO FIGHTING IN MY LIBRARY!"

I sigh. "I can't believe it. You've only been in the library ten times and you've been kicked out nine of them."

She scoffs before sending one last glare at Malfoy.

On our way back to the common room I hear the golden trio's voices coming from the girl's bathroom.

Kat pulls me inside, hiding against the wall.
"This Polyjuice stuff sounds a bit dodgy to me." I hear Ron say. "What if we were stuck looking like three of the Slytherins forever?"
Polyjuice? I read about that… why would they want to transform into Slytherins?
"It wears off after a while.' Hermione replies. "But getting hold of the recipe will be very difficult. Snape said it was in a book called Moste Potente Potions and it's bound to be in the Restricted Section of the library."

"Hard to see why we'd want the book, really." Ron replies. "if we weren't going to try and make one of the potions."

"I think." Hermione begins "that if we made it sound as though we were just interested in the theory, we might stand a chance...

"Oh, come on, no teacher's going to fall for that," said Ron. "They'd have to be really thick..."

"I have an idea." Kat announces, pulling us from hiding.

We had gotten surprisingly good at sneaking after over a year of being friends with Nico.

They gawk at her. "When did you get here?" Harry asks.

"So many visitors." A voice wallows. "They'll all leave though… who would want to be around someone as moany and ugly as me!"
"I know how to get a signature." Kat tells her, ignoring the ghost. "Meet me by Lockhart's office in twenty minutes with the form."

They gap at her, when she pulls me back into the hallway.

"What's polyjuice? I'm guessing it's something to do with turning into someone else." She asks.
"A complicated potion to make you turn into someone else for a short period of time." I answer.

"Sweet. I want some." She grins.

"Kat, you barely passed potions last year." I point out.

"What about Kat's horrible potions skills?" Nico asks, seemingly appearing from thin air.

"WHERE HAVE YOU BEEN?!" I demand, making him grimace.

"Uh… library?" He lies.

"And he called me a bad liar." Kat mutters.

"We were in the library." I tell him with a glare.

"Did I say library? I mean forbidden forest." He corrects.

I notice he is wearing muggle clothes. Black jeans, skull shirt and aviator jacket.

"What if I was in the forbidden forest?" Kat replies, suspiciously.

"I wouldn't have to come up with another lie because Will would be lecturing you." He smirks.

I glare at them. "Where were you really?"

"A cult." He says plainly. "So did anything happen while I was gone?"
Does he mean camp half-blood? I admit it does kind of count as a cult…

"The golden trio are creating a potion to make them change into other people. I'm not sure why, but it involved the Slytherins." I explain.

He looks thoughtful for a moment. "Maybe they're going to interrogate Malfoy as someone he trusts."

"You think Malfoy opened the chamber?" Kat asks, disbelief clear in her voice.

"Malfoy told me something on Halloween." He admits after a moment.

"You were having a heart to heart? Did you also paint each other's nails?" Kat mocks.

Nico glares at her. "Halloween is the anniversary of the day a muggleborn murdered his twin sister."

We fall into silence. I just thought he was a racist git…

"It can't be a coincidence that the chamber was opened on her anniversary." Kat agrees.

"Maybe Malfoy did open the chamber of secrets." I say.

Suddenly Nico's eye glaze over and he passes out into our arms.

Suddenly the area around us changes into a green and dark wood dormitory.

"Where are we?" Kat mutters.

Nico turns to stare at us. "WHAT ARE YOU DOING HERE?"

"Where is here?!" I yell, before noticing the other people in the room.

A raven haired girl who looks around our age is curled up in her bed, tears streaming down her face.

"My memory." He answers, moving toward the girl.

I then notice a young boy with matching black hair who couldn't have been any older than nine sitting next to her.

"I can't believe you're here." The girl mutters in a strong Italian accent, her gaze not moving from her pillow.

"Mama told me what happened." The boy replies.

The girl nods solemnly.

"That's my sister Bianca and myself." Nico replies in a small voice.

"Did you know her?" young Nico asks.

Bianca shakes her head. "She's not in my year and she was a muggleborn so it was frowned upon to talk to her." She answers, a guilty expression plastered on her face.

"Your sister was a Slytherin?" I whisper.

"They always mocked her." She says after a moment, her voice cracking.

My Nico attempts to smooth her hair only for his hand to go through her.

Young Nico puts his hand over hers "It's not your fault. You standing up for her would have done nothing."

A tear streams down Bianca's face. "I know but still." She whimpers. "They say it was the chamber of secrets. If so she won't be the only muggleborn to die."

The chamber had been opened before?

They fall silent.

I notice tears streaming down my Nico's face. It must be hard for him, seeing her.

After a few minutes Bianca speaks again "She had looked so terrified, like she had died of pure fright." She mutters, before young Nico pulled her into a hug.

Bianca must have found a body… the chamber killed someone?

Our surroundings turn back into the hallway.

"Nico-" I begin.

"I-I should go." He stutters before walking off.

Kat gives me a sad look. "The universe will not cut that kid a break."

"Yea." I agree, thinking back to his expression when he saw his sister. The fates really do hate him.

Kat (POV)

After we had returned from Nico's memory I pull myself together and make my way to Lockhart's office.

"You're late." Hermione tells me when we arrive.
"Quit your whining." I tell her, before taking my hair and putting it in two long pigtails in a way that made me resemble Hannah Abbott.

"Give me the form." I tell her.

With a small glare she takes the form and gives it to me.

I walk into Lockhart's office, a shy smile on my lips.

"H-hello Professor Lockhart." I fake stutter, forcing a blush to appear to appear on my cheeks. "Can I please have an autograph?"

I bite my lip, pretending to be nervous.

I ignore every bone in my body, telling me to stop this humiliation, or better: kick him in the nuts.

He gives me a creepy toothy smile. "Of course!"

Thankfully he didn't seem to recognise me from the last two months of pranks and mocking, or at least thought I suddenly saw the error of my ways. Un-bloody-likely!

He signs the form, not even reading it first.

Hook line and sinker. "T-Thanks." I stutter, pretending to be excited.

I skip over to the others, who had been gawking from the door. "That's how you get a signature."

Hermione seems embarrassed. Apparently her hero isn't as much of a genius as she thought.

"So what's the plan?" Will asks, as I untie my pigtails.

The trio share a look before bringing us into an abandoned classroom.

Harry then explains the plan, confirming our suspicions.

"Can I help you with the brewing?" Will offers. "I have one of the highest potions scores, or at least I would if we hadn't charmed shampoo bottles to insult and fix Snape's hair last year." Will tells them, sparing me a glare.

They all burst into fits of laughter.

"That's bloody brilliant!" Ron declares.

"Back on topic." Hermione says, not being able to hide her smile. "I'd love some help. We'll be brewing it in the girl's bathroom if you don't mind."
"Uh, wouldn't someone notice that I don't belong there?" Will asks.

She shakes her head. "It's abandoned because of Moaning Myrtle."

We nod, before deciding to go find Nico. He's probably still upset about the flashback. Speaking of which, once he's no longer upset he's going to need to explain what the hell that was.