Rosalyn, Harry, Ron and Hermione were walking back to Gryffindor common room when Rosalyn spoke.

"D'you think I should've told them? You know, about the voice?"

"No, Rosalyn, even in the wizarding world, hearing voices isn't a good thing," Hermione warned.

"She's right you know," a portrait said. Rosalyn ignored him, and set off back to he common room in a silence of a thousand words.

☆☆☆

The second years were in transfiguration. Rosalyn sat beside Ron and the two of them listened to McGonagall as she explained the lesson.

"Right, right, so today, we will be transforming animals into water goblets, like so," she pulled out her wand. "One, two, three vera verto."

The bird she was transforming turned into a clear, glass goblet. The class gasped at the transformation but soon realised it was not as easy at it looked.

"Now, who would like to go first?" McGonagall asked the class, no volunteers stepped forward, so she asked someone. "How about you, Mr Weasley? One, two, three, vera verto."

Ron cleared his throat and tapped Scabbers, whom he was practicing on, three times. "Vera verto!"

The goblet had a glass bottom, but the cup bit had a tail, and was furry, Rosalyn sniggered and Ron elbowed her in the ribs.

"That wand needs replacing, Mr Weasley," McGonagall had other things to worry about.

Hermione suddenly put up a hand.

"Yes, Miss Granger?"

"Professor, I was wondering if you could tell us about... the chamber of secrets?"

The class went silent. But McGonagall, for some reason no one knew, answered.

"The- the chamber of secrets Miss Granger, very well. Well, you all know that Hogwarts was founded over a thousand years ago by four of the greatest witches and wizards of the age. Godric Gryffindor, Helga Hufflepuff, Rowena Ravenclaw and Salazar Slytherin. Now three of the founders co-existed quite harmoniously, one did not."

Ron said to Rosalyn. "Three guesses who," she nodded. It wasn't hard to suss it out.

And so McGonagall said the predictable. "Salazar Slytherin wished to be more selective about the students admitted to Hogwarts. He believed magical learning should be kept within all magic families, in other words, pure bloods. Unable to sway the others, he decided to leave the school. Now according to legend, Slytherin had built a hidden chamber in the school called the Chamber of Secrets. Although shortly before leaving, he sealed it, until the time when his own true heir returned to the school. The heir would be able to open the chamber and unleash, the horror within, and by doing so, purge the school of all those, in Slytherin's eyes, were unworthy to study magic."

"Muggleborns," Hermione answered without a question.

McGonagall started to realise that she might have scared people, so she reassured them. "Well, naturally the school has been searched many times, and needless to say, no such chamber exists."

Hermione suddenly asked. "Professor, what exactly does legend say, lies within the chamber?"

"The chamber is said to be home to something that only the heir of Slytherin can control," McGonagall said. "It is said to be the home, of a monster."

The class looked at each other in shock, Rosalyn cast a look at Draco, and his face was set, it was a kind of sneer-smirk combo, and Rosalyn didn't like it one bit.

The bell rang and McGonagall dismissed the class, Rosalyn, Harry, Ron and Hermione discussed what they had just heard.

"D'you think it's real, d'you think there really is a chamber of secrets?"

"Of course, McGonagall's worried, all the teachers are," was Hermione's wit-filled answer.

"But if there really is a chamber of secrets, that means-" Rosalyn started.

"-That the heir of Slytherin has returned to Hogwarts, so the question is who is it?" Harry finished.

"Hmm let's think," Ron said in mock puzzlement. "Who do we know, who thinks that all muggleborns are scum?"

"If you're talking about Malfoy-" Hermione wasn't convinced, but Rosalyn was.

"Of course!" She said, lowering her voice. "You heard him, you'll be next mudbloods!"

"Yeah, until my fist went to his face," Rosalyn sniggered, making Ron and Harry start too.

The quartet continued walking and talking.

"I heard him, but Malfoy? You really think he's the heir?"

"Maybe Ron's right Hermione, look at his family, the whole load of them have been in Slytherin for centuries!" Harry added.

"Crabbe and Goyle must know," Rosalyn said. "We could maybe trick them into telling us!"

Hermione was already shaking her head. "No, even they aren't that thick, but there might be another way, but mind you, it'd be difficult, and not to mention we'd be breaking about fifty school rules, and it'll be dangerous, very dangerous."

"Sign me up," Rosalyn joked, and the four of them laughed.

They went to the library. They told Madame Pince, the librarian, that they wanted the book called Moste Potente Potions, but Pince was quick to point out that it was in the restricted section.

"You need a signed permission slip from and teacher, to get a book out of the restricted section." The quartet looked at each other in hopelessness. They walked away from the desk and sat down, talking in hushed voices.

"We need a permission slip?"

"But we have to find out if it's Malfoy!"

"So how d'we get the book?"

"If we say that we're just interested in the theory, that we would never dream of doing the practical..."

"No teacher's gonna be thick enough to believe that!"

Ron sighed after his last comment, but he had given Rosalyn an idea.

"You're wrong," she said, smirking. "There is a teacher thick enough."

☆☆☆

The Defence Against the Dark Arts lesson they had that day, they weren't looking forward to, but they had to do it. As did everyone.

After the pixies, Lockhart had decided it bast not to bring any creatures into class, but instead had the class, or rather just Rosalyn and sometimes Harry, act out bits from his books.

Today she was being a werewolf.

"Nice loud howl Rosalyn, exactly! And then, if you'll believe it, I pounced, like this, and slammed him to the floor, or in this case, her, and then I put my wand to his throat and performed the extremely complex homorphorus charm, the fur vanished and the fangs shrank, and another village will remember me as the hero who saved them from the terror of monthly werewolf attacks."

Rosalyn rolled her eyes and Lockhart permitted her to go back to her seat. The bell rang and the class filed out, but Rosalyn and her friends stayed.

"That's it," Hermione said in a low, shaky voice. "Wait till everyone's gone..."

So they did, and once it was only them and their idiot teacher in the classroom, they went up to his desk.

"Er, Professor Lockhart?" The teacher looked up at Hermione's words. "I- I was wondering if I could get this book out the library, just for background reading, you know." She handed over a piece of parchment to him, and he didn't hesitate. "But it's in the restricted section, so I have to have a permission slip from a teacher. It'd help me so much to understand what you say in Gadding with Ghouls about slow-acting venoms..."

"Ah, Gadding with Ghouls! Perhaps my favourite book! Did you enjoy it?"

"Oh, yes," said Hermione, Rosalyn couldn't tell if she was playing along or was being genuine. "So clever, the way you got the last one with the tea strainer..."

"Well, It can't hurt to help a curious reader," Lockhart said warmly, he pulled out a peacock feather quill. "I usually save it for book signings, nice isn't it?" he misread the disgusted look on Ron's face.

He signed the note and the four of them left without complaint.

"I don't believe it, he didn't even look at the book we wanted," Hermione said.

"That's because he's a brainless git, with too much floppy hair and bleached white teeth," Rosalyn said without even thinking. Ron and Harry laughed.

They ran to the library after Hermione had told Rosalyn off for calling Lockhart that. When they got there, they handed Madame Pince the note and she took it, but Hermione held onto it.

"I was wondering if I could keep it," Hermione panted.

"Oh come on!" Ron pulled the note out of her hands and handed it to Madame Pince. "We'll get you another autograph, Lockhart'll sign anything if it stands still long enough!'

Hermione took about five minutes finding the book they needed, Moste Potente Potions, and finding the page.

Finally, she said. "Here it is, the polyjuice potion, properly brewed, the polyjuice potion allows someone to transform themself temporarily into the physical form of another."

"D'you mean that if Harry and I drink that stuff, we'll turn into Crabbe and Goyle?" Ron asked, surprised there was such a potion.

"Yes, and Rosie and I can find two Slytherin girls to go as," Hermione said.

"Wicked! Malfoy'll tell us anything!" Ron said, eyes wide and mouth open.

"Exactly!" Rosalyn said, hi-fiving the boys.

"But it's tricky, I've never seen a more complicated potion," Hermione was trying not to put a damper on the positive attitude.

"How long will it take to make?" Rosalyn asked.

"A month."

"A month?" Rosalyn gasped. "But, Mione, if Malfoy is the heir, he could've killed all the muggleborns in the school by then!"

"I know," Hermione said weakly. "But it's the only plan we've got."