[HP] Butterfly Effect

Regulus' letter came from a long way from the north along with the cold gray-blue air in December. The temperature in London dropped by almost half overnight, and the early morning fog condensed into free-spreading frost on the cold castle spire.In this kind of weather, even the rain falling on the body has a slight tingling sensation caused by the low temperature.

When Snape walked out of the headmaster's office, the conversation he had just had with Dumbledore was still racing through his mind.Since Regulus had mostly recovered his memory, he had left Hogwarts to search for traces of the Dark Lord's other Horcruxes.Because as far as he knows, Slytherin's locket is not the only Horcrux made by the Dark Lord. Regulus has his own guess about how many there are, and now he is waiting to find Horace Professor Laghorn is confirmed.After all, the Dark Lord's original concept of Horcruxes came from the former head of Slytherin, and he, like Professor Keitel Byrne, always couldn't tell what to do with his favorite students. What not to say.

Speaking of which, he never had a deep impression of this Blake. It was just that among the fanatical Death Eaters who had almost no bottom line at that time, the gentlemanly demeanor and calmness embodied in the other party seemed particularly special. striking.

Especially compared to other Death Eaters, this Black is overly sympathetic and morally principled, not at all like his blood-related sister.However, comparing them this way, Snape found that the three siblings had almost no similarities in their personalities, except that they were all surprisingly stubborn.

But there is no doubt that if Snape had to choose one person who could be considered barely positive, it would only be Regulus Black.Compared with his two relatives, he obviously has more qualities that the Black family should have.

Thinking of this, Snape suddenly felt that he had paid too little attention to this always taciturn Black.After all, he was far better than the other two Blacks in terms of just being able to discover and find a way to steal the Dark Lord's Horcrux.

After returning to the cellar, Snape habitually flipped through the letter box on the desk, and there was indeed a letter from Madam Pomfrey lying inside, roughly asking him to help brew some commonly used potions .Looking at the end of the letter, Snape paused, because he remembered that several potion ingredients needed here had just been used up recently.

It is impossible to find these in the Forbidden Forest this season. We can only go to Professor Sprout's greenhouse to see if there are any successful cultivation.Snape folded the letter casually, put it in his pocket, and started walking towards the greenhouse.And that obvious wave of black magic suddenly broke into his perception at this time, from the invisible place at the end of the corridor, in the direction of the drawbridge in the castle passed by the river.

This was the black magic wave of the Slytherin Horcrux, and Snape was so familiar with it.But it was the first time that I felt it so clearly in school.

He changed his course and walked slowly towards the place where the sound of water was getting louder, following the source of the magic wave.

Few students will come here, because the river here leads directly to the Black Lake, so apart from some protective spells, Hogwarts has not set up any closed walls here, and there are no teaching facilities, it is considered a semi-open Original ecological environment.Sometimes, some magical creatures that are not so dependent on the forest environment will wander here from the Forbidden Forest, scaring the students who accidentally ran here and screaming.So over time, this place became almost the same as the Forbidden Forest in the eyes of the students.

So Snape wasn't too surprised to meet Aurora here.After all, she often runs into the Forbidden Forest like her own dormitory, and stays there for most of the day, and others would not even dare to think about it.

The girl sat cross-legged on the rock that had been sculpted round by the water beside the river, supported her head with her left hand, and shook her wand in her right hand.The dark yellow scarf was loosely draped like the long pale golden hair, sloping along her back, and the hem hung down into the river water and was soaked by the transparent spray.The sky is as gloomy and dim as the earth, and the outline of the forest is as sharp and solemn as rows of pitch-black spiers, narrowly surrounding it, casting oppressive shadows.The golden yellow on the girl's body is the only bright color in the whole picture, like the sun falling from the clouds.

The old diary was suspended in front of Aurora, as if it was communicating with her.

After a while, Aurora sighed, put down her wand, grabbed the scarf that had been pulled by the oversaturated water and had slipped to the elbow of her arm and kept falling down, twisted out the water in the scarf with both hands, and rolled her eyes at the diary: " Do you see, Mr. Slytherin. These are the tears I shed because I couldn't learn the Patronus Charm."

Salazar looked at her with a sneer, and stabbed meanly: "No, it's all water in your brain, so you can't learn it." I'm getting more and more immune, I really don't know if it's a good thing or a bad thing.

Before she could come up with an answer, a smooth and strange voice suddenly came out of the diary, with a bit of cold laziness: "As I said, the power of the patron saint comes from your heart. You must In the meantime, do your best and try to think about those precious happy memories you have.”

Snape was slightly taken aback, not only because the Horcrux was teaching Aurora the Patronus Charm, but also because of the strange voice that suddenly sounded just now.But in a split second, Snape realized that it was Salazar Slytherin himself speaking.That voice sounded too young, and even had a clear and crisp youthful feel. Combined with the identity of the other party, it felt inexplicably inconsistent.

But... why did he teach Aurora the Patronus Charm?Snape frowned.

Aurora stood up, raised the wand in her hand again, drew a trajectory in the dim light, and chanted the spell: "Call God to protect——!"

There was a faint silver-white light gathering shapelessly at the tip of the cypress wand in her hand, and Snape for no reason remembered what his Defense Against the Dark Arts professor had told them—"The Patronus Charm is the reaction of the wizard's soul, it will Faithfully record all your emotions and psychological changes, it is your truest mirror, your strongest shield, and your deepest secret".

He was suddenly a little curious about what Aurora's patron saint would look like, curious for no reason.

There was wind, and the strong smell of grass and trees in the Forbidden Forest not far away was blowing over, and the cold dampness blew away the light ball at the tip of Aurora's wand.

She sighed, grabbed her long hair a little depressed, and didn't bother to care about the scarf that was on the ground, so she sat down like this: "I know what you are going to say, I am the worst you have ever brought One." As she spoke, Aurora covered her face, her voice muffled from between her fingers, "I'm ready, tell me."

Unexpectedly, Salazar didn't attack directly, but asked calmly: "What were you thinking just now?" Aurora looked up, "My mother. I think of the temperature on her body, she called my name, And a couple of birthdays she gave me. I thought about Vox, and Beverly and Bill."

"Then you really think too much." Salazar commented sharply.Aurora bit her thumbnail, and asked tentatively, "You mean, I only need to think about one of them?"

"I want you to think about the one that is important enough, how many times have I repeated it?" Salazar's voice raised two points, causing Aurora to flinch.Aurora exhaled, and began to present all the details about Marianne in her memory, but it still failed.

She tried again, this time thinking about her first attempt at taming magical creatures.

"Call God Guardian—!"

The light gathered again, brighter than ever before, but it still collapsed.

"What are you thinking this time?"

"My first encounter with Fantastic Beasts, that's all I can think of."

But why is it still not working?

"Do you think those are your most important and happiest memories?" Salazar asked back.

"I think...maybe..."

"But judging from your reaction to the Patronus Charm, it's obviously not."

"Then..." Aurora shook her head a little discouraged, "Then I don't know. I don't know what is really important and happy to me. I tried every moment and memory I thought, but you can see the result arrive."

"That can only explain." Salazar said every word, those clear and full syllables seemed to be resurrected from the air in the next second, "The importance and happiness you once thought are important and happy for you now. Said, it's not anymore."

"Then what makes me really happy?"

"You asked me?" Salazar replied coldly, his sharp tone wishing he could turn into a knife and stab her to death.

Aurora touched the tip of her nose resentfully, and said to herself vaguely: "I think those moments I think about are quite happy." Could it be that she imagined that she became a potion genius at Hogwarts overnight? Or woke up and won the UK's highest prize lottery?

...What should I do, these two look so happy, it's hard to choose...

Salazar obviously didn't realize that Aurora was imagining something weird, and continued: "Either you are deluding yourself, or you haven't realized it yet."

"Mr. Slytherin, I want to ask, can a person's Patronus change? I heard from you, it seems that as long as the mood changes, the Patronus will also change?" Aurora asked strangely.

"Yes." The other party replied simply, "As long as the wizard's mood changes a lot, then his patron saint will change."

"Is that so?" Aurora lowered her head and said nothing.She was suddenly curious about what Salazar's patron saint was, but she always felt that if she asked this question, she would be beaten to death and thrown away as an appetizer for the basilisk.This feeling of jumping back and forth between the desire for knowledge and the desire to survive is too painful.

When Aurora was still struggling, Snape, who had been standing in the shadow of the woods not far away and watching all this, suddenly felt that the emerald green snake moving on the diary page was looking in his direction.The space was illusoryly compressed, and the pair of cold and sharp golden snake eyes came to him without any hindrance, and the young voice that made people chill: "Good afternoon, my dean."

Aurora opened the satchel and teased the magical animals who were finally able to come out for a breath, without realizing what was happening behind her.

"Good afternoon, Mr. Slytherin. Did you teach her the Patronus Charm just now?" Snape probably knew that Aurora couldn't see them, so he asked directly.Salazar hummed, and replied lazily: "Otherwise, what do you think I'm doing, teaching her black magic?" After finishing speaking, he smiled, as if he thought the statement was quite funny.

Snape caught the "you" in the other party's words, and realized that the other party associated his appearance with Dumbledore, so he politely corrected: "No, I don't think your selection criteria will To teach Feld the black arts, as her professor, I know she really doesn't have that talent. And I just asked out of curiosity, because I just happened to pass by."

"I thought you stood here for so long because you wanted to see what her patron saint is. It seems that I misunderstood." Salazar said regretfully, his tone sounded extremely hypocritical.

Snape rubbed the hand behind his waist unconsciously, and pulled a formulaic smirk on his face, not intending to argue with the snake ancestor, which would not do him any good.

"But you're right. From the perspective of teaching black magic, she is indeed not a good student." Salazar said casually, "Like this spell, she doesn't even know what she really wants. What are you happy about." After speaking, he suddenly laughed again, the laughter was sharp and light, "Then again, it's hard to say whether you don't know or you don't admit it."

Snape politely agreed, and took his leave quickly.

Aurora, who had been squatting by the river, used the floating spell to pick up a strange crystal stone from the water. The hard texture brought the unique coldness of the river, and the temperature of the palm was not enough to warm it.The stone itself is a limestone-like pale color, surrounded by a soft and warm pale gold.

Holding the stone, she happily shook the diary floating in the air: "Sir, look at this, the color is so special!"

Slytherin's diary fell from the sky without warning, and Aurora quickly ran two steps forward to catch it.

And Snape's figure had completely disappeared when Aurora's attention was still on the diary.He went back to the cellar, completely forgetting that his purpose in going out in the first place was to find potion ingredients in the greenhouse.The black wand in his hand was smooth and cold, like a carefully polished bone.Snape raised his wand and stood silently in the shadows for a long time.

For some unknown reason, Salazar's words lingered in his ears: "That only shows that the importance and happiness you once thought are no longer relevant to you now."

"Call God to protect you." The wand swung out along with the incantation, and the silver doe jumped out briskly from the bright and soft halo, and moved to Snape's hand docilely, watching him with clear eyes.

In many nights, maybe it was a long and deep night, maybe it was rainstorm and thunder, but this Patronus accompanied Snape from waking up to falling asleep.And at night accompanied by this doe, there must be that beautiful and enthusiastic red-haired girl in the dream, with bright flames in the green eyes, people dare not look at her, afraid that the temperature of the flame will pass through the eyes Dip it onto your face.

Snape didn't remember when this dream started, he only knew that when he came back to his senses, he was already standing in the middle of the hall wearing the dirty old clothes from his boyhood.

The whole dream was black and white, and the blackness was so deep that there was not a trace of light through it.There are blurry and monotonous figures everywhere, and the background sound is so messy that it is impossible to recognize what it is. The girl with long red hair is the only clear and colorful existence in the entire chaotic dream.Almost without thinking, Snape pushed through the crowd and ran towards the figure, reaching out to grab the girl's hand.He opened his mouth to call out the other party's name, his voice trembling morbidly because of his extreme restraint, as if he would shatter the other party if he was a little louder: "Lily?"

The girl turned her head, and Snape's image was reflected in her blue eyes.She didn't speak, just quietly looked at Snape smiling, the corners of his mouth curled up like a plump flower silently blooming.

"Hello, Sev."

"Lily..." Snape and Lily faced each other, and suddenly felt that something was wrong with the girl in front of him.The face is Lily's, the eyes are Lily's, the voice is Lily's, and everything else is Lily's.

Only the eyes are not.

The iconic bright flame in Lily's eyes was gone, replaced by a strange gentleness, reminiscent of the sunlight penetrating through the green forest in early spring, soft but not glaring.

Snape forgot what he was about to say.

Suddenly, a blond girl ran hurriedly from the darkness behind him, through the thin, pale figures, and bumped into Snape's shoulder.She apologized quickly in a low voice, and then disappeared into the blurred crowd in an instant.

Snape looked blankly at the girl who suddenly appeared and disappeared, only remembering the blond hair on the other side, but when he turned around, he found that Lily was no longer in the same place, only the noisy moving human frame around him.

"Lily—!"

The ancient castle was broken by a powerful external force, and the black and white dreams were torn apart.It was a majestic and brilliant light, as sharp as a blade, tearing away the darkness and haze of the entire world.

Its daybreak.

The clouds and sunlight outside the window are slowly rising.

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