Okay, I know that in the original work, this plot should take place when everyone is having dinner in the hall, but I've delayed it for a while, because the original doesn't say that everyone eats in the hall - otherwise Ginny wouldn't have found time to leave the blood letter.

So I made a derivation, and the Slytherin house was separated into separate actions, and if there were any other logical errors, I hope everyone would ignore them together, and be silent......

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Gold 2 (Positive): Difficult situation.

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Hogwarts Council Hall

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[So, I'm really not interested in this kind of ball......]

Nestled near the ledge of the more remote windowsill of the venue, Opal looked at the noisy dance party with one hand on her chin and couldn't help but sigh - it was much better than the kind of party she attended at Draco's house, but for her, the environment was still a bit noisy at the moment.

I have to admit that the music played by the Skull Song and Dance Troupe is quite suitable for Halloween's lively music, and the level of music and performance is world-class, but Opal is the most disgusted with this lively atmosphere.

It's a pity that as the head of the second grade, she doesn't have the right to leave early, so she can only spend it here.

[Why don't the Head of Year and Prefect have the right to leave early...... This kind of stipulation is too inconsistent with the magic theorem. ]

Muttering and muttering, because he couldn't leave the table, Opal could only vent his frustration by whispering complaints.

Perhaps by nature, Opal liked quiet places, and the noisy places like the ball made her feel visibly maladjusted.

"Opal, it's so hard for me to find you here."

At this time, Draco's voice came, and when he looked up, he happened to see him walking over with a champagne glass.

[Why, are you finally willing to get off the dance floor?] ]

Raising the orange juice in his hand to Draco, Opal tilted his head and grimaced at him, [So you're tired sometimes. ]

"How dare you say it!"

Draco couldn't help but roll his eyes at Opal's cool words, "If I hadn't been there to help you out, do you think you would still be able to enjoy this kind of leisure?" ”

[Those who can work hard!] ]

Knowing that he was taking advantage, Opal touched his nose and said with a dry smile, [Anyway, Draco, you're good at handling this situation, aren't you?] ]

"Just because I'm good doesn't mean I like it."

Leaning against the wall beside Opal, Draco let out a sigh, "But I didn't say it, Opal...... You're definitely going to have to experience this kind of scene more in the future, so it's always better to get used to it as soon as possible, isn't it? ”

[But if you don't like it, you don't like it...... I can't do it if I'm as sophisticated as you. If you can't do it, then why bother asking for it. Naturally, it is left to the right people to do it to make the final result the most beneficial, isn't it? ]

Although Draco's words are true, everyone has something that they are not good at, and for Opal, this kind of social circle thing is the area she is not good at.

Although she is usually quite popular throughout Hogwarts because of her personality and temperament, it is only based on the fact that others have a good impression of her, and the ability to really and substantively contact Opal in this regard is very lacking - and Opal is also well aware of this, so he always tries to avoid getting involved in this aspect of the activity as much as possible, and pushes everything he can to Draco to do.

"You......"

Looking at Opal with a look of "I'm Rippy, you bite me", it seemed that he was planning to Rippy to the end, Draco only felt angry and funny, and at the same time, he also felt that Opal, who was still playing like this, was more real for him.

"Draco, Opal...... What are you two whispering about hiding here! ”

Just as Opal was about to speak, Pansy's voice came from there, and when he turned his head to look over, he saw Pansy dressed as Little Red Riding Hood walking over with Blaise dressed as a big bad wolf.

[Pansy...... Don't you think it would be more appropriate for you and Blaise to change their outfits? ]

Looking at the two people in front of him, who had obviously just come off the dance floor, Opal couldn't help but tease.

"Spare me, Opal! A cute Pansy is enough for me......"

Blaise spread out his hand, with a helpless expression, "How can I be suitable for pretending to be Little Red Riding Hood and selling cute!" It's going to give you nightmares. ”

[As long as Pansy doesn't mind?] ]

In response to Brace's response, Opal just tilted his head to look at Pansy who was hanging high on the side and drinking a drink, [Pansy, what do you say?] ]

"Don't! It's so hurtful! ”

As a result, Pansy didn't want to veto it immediately, "Just Blaise, the black skin, still wants to take the cute route?" Opar, you really want to talk about it! I can't stand it anyway! ”

Opal only glanced at Brace who was smiling wryly on the side with some sympathy, and the idea of "comrade, the revolution has not yet succeeded" was overflowing, and Brace only shrugged his shoulders and replied with an expression of "still working hard".

[Speaking of which, how long will it take for the party to end?] ]

Glancing at the large clock on the wall of the chamber, Opal yawned boredly.

"It's probably more than an hour, don't look at me...... It's conventional. ”

Draco shrugged his shoulders.

[I feel like time has passed...... Hey? ]

Opal, who was about to complain twice, suddenly stopped in the middle of her sentence—because she had been sitting against the windowsill when she heard a chilling hissing sound coming from the wall.

{…… Tear...... Bite ...... Kill ......}

It was a more muffled and unfamiliar sound than Nagini's, the hissing of a snake.

"Opal, what's wrong?"

Draco gave Opal a strange look at her, only to find Opal frowning, pressing his ears against the wall with a serious expression, and waving his hand to silence them.

{…… I'm so hungry...... I've been waiting for a long time......}

Then Opal heard the serpent's hiss again, and the sound seemed to grow farther and fainter, but the chill felt creepy was heavier.

{…… Kill...... It's time to kill ......}

"Tsk...... Trouble ......"

Although after making sure that the voice did not belong to Nagini, Opal was indeed relieved.

{…… I smell blood...... I smell blood...... I'm so hungry...... Want to eat......}

The voice gradually rose and faded, and Opal then realized a more serious problem - the meeting room where the Slytherin masquerade was held was in the corner of Hogwarts, but the voice was moving in the direction of the castle...... It's close to the lobby!

"Opal, what the hell is going on? Do you hear anything? How come I can't hear ...... at all"

It was Pansy who had put her ear to the wall in the same way as Opal did, and she was a little uneasy at the moment when she remembered something—because if I remembered correctly, the Halloween Chamber would be opened in the second year, and it would be the cat next to Filch who would be petrified, and the three Harry who had returned from the Death Night party.

Ha, she should be nervous. After all, wasn't that notebook Opal gone? And she never left the scene of the masquerade, so the person who opened the secret room should still be Ginny.

Comforting herself, Pansy patted her cheek so that her expression wasn't too stiff - she'd been so happy with it all this time that she had almost forgotten about the pervasive plot...... Sure enough, it's still too lax.

[It's the voice of a snake creature...... But the content is a little vague and inaudible......]

Biting his lip, Opal stood up, [Draco, you go out with me, something not so good might happen next.] ]

"Opal, if there is nothing special, it is rude to leave the table in the middle of the meeting."

After carefully recalling the plot and confirming that nothing should happen to them next, but after Draco would say a sarcastic sentence of hatred, Pansy was relieved and made up her mind to keep Opal.

After all, it seems that because of Opal's involvement, the trio of Draco and Gryffindor is dismissive of Hermione, and Harry is not a one-sided provocative contradiction, but he and Ron are basically sworn enemies who quarrel when they meet - compared to the original, it is really much lighter.

[That's why I let Draco go out with me because I knew.] And it should not matter if it's only for a short while. ]

Taking Draco's arm, Opal smiled gently, [Draco and I will greet the other chiefs and prefects before we go out, so there shouldn't be any problems.] ]

"Do you have to go out?"

[Well, I can't hear the voice clearly, but I hear words that I care about, and I always feel like I need to confirm it to feel at ease.] ]

"But ......"

"Alright Pansy, I don't know why you've become such a mother-in-law sometimes."

The person who interrupted Pansy impatiently this time was Draco, "It's just a short time out, and I don't see anything going wrong...... Hiss! It hurts! Opar, I'm not saying you're just going to get into trouble, step on me and do something! ”

The latter sentence was addressed to Opal, who had stepped on him without a trace.

[Who stepped on you!] ]

Turning his head silently, Opal pretended that nothing had happened.

"Poof......

Brace, who was on the side, turned his back and trembled slightly, but then Pansy secretly pinched his back and gasped.

"Okay...... Whatever you want. ”

In fact, it's because Draco you're out that you're worried...... But anyway, with Opal with him, Draco shouldn't have any more trouble......

Pansy, who can't say this clearly, can only smile bitterly at the moment - the feeling of knowing something but not being able to say it, although it is not the first time I have experienced it, but I still feel very aggrieved......

[Then Draco, let's go.] ]

"I don't know what's going on, but it's okay, let's go......"

As for Opal's thoughts, because Draco thought they were nothing more than trivial matters, so he followed her and left.

==========================I'm the dividing line ======================== the switching scene

Hogwarts 2nd floor hallway

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Dimly lit corridors, slippery floors.

On the wall corresponding to the two windows in the hallway, the words the size of the soles of the feet painted on them shimmered in the light of the flickering torches in the hallway.

"The Chamber of Secrets has been opened. Descendants of the enemy, beware. ”

Beneath the blood-red handwriting, Filch's cat, Mrs. Norris, had its tail dangling from a barrel of torches, its hair exploded, its body as stiff as a plank, and its eyes wide as if it had seen something terrible.

Before the cat, Harry, Hermione, and Ron were all bloodless as if they had been spelled.

After Opal and Draco came out of the conference room and went upstairs, it seemed that the dinner party on the other side of the hall was also coming to an end, and the students and teachers were coming up the stairs from the side of the hallway.

And when everyone saw the upside-down cat, the chirping conversation, the footsteps, all the sound stopped—they just quietly looked at the blood-colored words, and the three Harry standing in front of the words in the middle of the hallway.

"Wow...... Is it cool or something else......"

Draco scoffed, turned his face to Opal beside him and whispered, "It seems that the secret chamber of the founder of our Slytherin House has been opened. It looks like the hemp seeds have suffered. ”

[Does Salazar hate half-blood wizards?] ]

Recalling the memoirs he had seen, Opal felt that things might not be that simple.

"Yes, our founders hated Muggles who polluted their wizarding bloodlines, otherwise they wouldn't have broken with the other three because of this. I don't know who opened the chamber, but at least he did something commendable. ”

Draco sighed, looking at the Gryffindor trio in the hallway with a hint of schadenfreude, "And now it looks like our savior is in serious trouble!" ”

"What happened? What happened? ”

At this time, Filch, who seemed to be walking over because of the congestion in the hallway, squeezed a path out of the way with his shoulders and cut through the crowd.

Then he saw Mrs. Noris and the writing on the wall, and he was so frightened that he stepped back, his face full of horror: "My cat! My cat! What happened to Lady Norris? ”

His eyes widened and he turned his gaze to Harry, who didn't seem to have fully recovered from his senses in the hallway, and screamed, "You! It's you! You killed my cat! You killed her! I'll kill you! I'm going to-"

"Argus!"

However, by this time, Dumbledore had already arrived at the scene with a group of teachers, and after calling out his name to stop Filch, he stepped forward to untie Mrs. Norris and checked it, "Follow me, Filch...... And you, Mr. Potter, Mr. Weasley, and Miss Hermione. ”

Then he swept his gaze from behind the lenses over the crowd, lingering on Opal's body for a moment before glancing at the cat in his hand.

Although it was a short time, Opal still decoded the message "Please come over later" and nodded.

Dumbledore nodded slightly, and then Lockhart stepped forward, looking particularly enthusiastic: "My office is the closest, the principal - just upstairs - please use the ......"

The students, who seemed to have remained silent because they were frightened, quickly dispersed and let them walk up. Lockhart followed Dumbledore excitedly and presumptuously, while McGonagall and Professor Snape followed equally hurriedly.

As for Harry, they ...... It was in Filch's hateful gaze that he followed behind the group of teachers with some trepidation, and left as well.

It wasn't until the group disappeared that the whole crowd exploded, but Opal was not interested in listening, but turned to look at Draco, who seemed to be a little excited: [I'm a little tired, Draco, let's go back.] This kind of thing happened, and I think the ball was going to end next. ]

"Well, yes, it's just a farce."

Draco nodded in agreement, simply happy to wait for a little more talk.