The much-loved Coke face-washing plot did not go as smoothly as Elena planned after all.

As for the reason for the failure, it was not because Ron was clever enough to realize that something was wrong, or because Harry Potter had the courage to expose the prank.

In the early nineties, the gas content of carbonated drinks was already unsaturated, and Elena overestimated the hands-on ability of pure-blood wizards. Ron, who had never seen a Coke spin cap, had five or six minutes to figure out the correct way to unscrew the cap.

So much so that the churning bubbles had fallen silent for a long time, and the Coke that poured out of the bottle had just risen to the place of Ron's shirt before losing its lift and falling, mostly spilling into his jacket pocket.

Squeak squeak......

As the Coke spilled, Ron's jacket pocket suddenly began to squirm in a series of panicked squeaks.

"Oh my God, Spotted ......"

Ron was first startled by the sudden outpouring of Coke, then quickly moved the Coke away from him, hurriedly reached out and took out a fat gray mouse from the inner pocket of his jacket, put it on his lap, raised his head to look at the two people around him, and quickly explained.

"It's called Spotted, it's useless, and I can't wake up all day. Percy became a prefect, and my dad gave him an owl, and they couldn't afford it—I mean, so they gave me the mouse. ”

After a few words of explanation, Ron's ears turned slightly red, turned his head, and looked at the silver-haired little Lori sitting opposite with a look of confusion and a little hurt, and took the initiative to divert the topic and ask.

"What's going on, it's ...... all of a sudden"

"Oh no, I forgot to remind you......"

Before Ron could finish his questioning, Elena patted her head and let out a particularly exaggerated exclamation, with a look of regret written on her face, and took the initiative to speak, her tone full of self-reproach.

"Ron, you're too slow to open the cap. So much so that the magic substance in the drink that I shook was revived again, and you should shake it vigorously before turning it on. ”

"Mana matter?"

Ron looked up, looked at the Coke bottle in his hand in confusion, and frowned, "But, didn't you just say it's a Muggle drink?"

"Well, it's as if the wizarding world eats ordinary potatoes. Isn't it normal for Muggles to collect some magical substances as drinks?"

Elena spread her hands and explained solemnly, "You don't think that any ordinary liquid can swim against the current. If you look closer, you can hear the sizzling sound of the magical substance in every drop of liquid. ”

"Is that so?"

Hearing Elena's explanation, Ron put his ear close to the Coke bottle in disbelief, and sure enough, he heard countless subtle crackling and sizzling sounds, and his face was a little more convinced.

At this moment, a timid voice came from Ron's position.

"But, Miss Elena. If I remember correctly, as long as you don't shake the Coke, it won't squirt. ”

Harry Potter, who had been sitting next to him the whole time, finally couldn't hold back and raised his hand, although he didn't know why he was raising his hand, and mustered up the courage to interrupt Elena's words.

"Huh, is that so......"

Ron looked suspiciously at Harry, who had a simple and serious expression, and then at Elena, whose face was full of wisdom and confidence, and asked with some uncertainty.

Well?!

How dare you dismantle Miss Ben's stage?!

The smile on the smug silver-haired little Lori stiffened, her face sank, and she glared fiercely at Harry Potter who was sitting in the opposite corner, and let out a cold snort of displeasure.

Elena raised her chin slightly, stood up and folded her arms, and tapped her finger at the Magic Potions and Potions in Harry's hand, mimicking Lucius Malfoy's arrogant tone and speaking slowly.

"Mr. Harry Potter, this world is far more wonderful than you think. Do you know why Coke bubbles, do you know what magical substances are in it?"

Facing the imposing Elena, Harry Potter shrank back a little nervously, shook his head, and replied honestly, "I'm sorry, I don't know. ”

"Well, then you don't know about the ubiquitous hydronic acid, and the terrible substance CO2, right?"

Elena crossed her arms and looked down at poor Harry Potter from above, her tone becoming more incomprehensible.

"Sorry, I don't know. Harry shook his head again.

Sure enough, a gleam flashed in Elena's eyes, just as she thought, even Harry Potter, who had just graduated from elementary school and lived in the Muggle world before, had the same knowledge of chemistry as other wizards.

After getting a satisfactory answer, a hint of banter hung on the corner of Elena's mouth - dare to tear down the stage? Miss Ben doesn't fool you, she is sorry for the nine-year compulsory education in her previous life. By the way, it was rehearsed in advance for some operations to be carried out at Hogwarts later.

Elena cleared her throat, straightened her face, raised her fingers, and spoke unhurriedly, as if she were telling some important ancient secret.

"CO2 is a terrible substance, and even Muggles are aware of its dangers. The ancient humans called it Dead Air. It can extinguish flames, it can suffocate people, and it is even believed that it will one day destroy the entire civilization on the earth. ”

Glancing at the two boys who were listening carefully, the silver-haired little Lori paused, lowered her voice, and continued to tell the story with a mysterious face.

"As for hydroxylic acid, it's a colorless, odorless, tasteless magical substance. It kills thousands of people every year, and according to incomplete statistics, the mortality rate due to respiratory inhalation of hydroxyacid liquids ranks among the top 10 human deaths. Moreover, hydroxonic acid is necessary for the formation of most diseases, and people who are addicted to this substance will die within 168 hours of leaving it......"

As time passed, the atmosphere in the booth became more and more solemn, and Harry and Ron's faces were full of nervousness, and even the voices of panting were very low, listening attentively to Teacher Elena's small class.

After all, Elena's words are well-founded and logically rigorous, and they sound extraordinarily convincing, coupled with the irrefutable momentum that the girl has always shown, Harry and Ron can't help but believe it.

"But, Sister Elena. ”

Ron swallowed hard, raised his hand, and after asking Elena's permission, asked in a low voice, "What do these two terrible magical substances have to do with this cola?"

Elena nodded in satisfaction, tapped her fingertips on the transparent Coke bottle, and smiled.

"That's a good question, because ah...... The main components of this black liquid are actually hydroxylic acid and CO2, which you will learn about in the more advanced potions classes when you grow up. Remember not to show it in front of outsiders, especially professors, because it is forbidden to learn the knowledge of potions too early. ”

Glancing at Harry Potter and Ron Weasley, who had been completely deviated and nodded with a serious face, indicating that they would never be spread out, Elena squinted her eyes, glanced at Harry and Ron, and summed up again in a serious manner.

"Mind you, you're about to become full-fledged wizards, don't spoil magical magic drinks in Muggle ways. The correct way for the wizarding world to drink this substance is to shake it before drinking. When you are able to use your magic to suppress the riot caused by Coke, it means that you have become a great wizard like Dumbledore. Got it?!"

"Well, we'll try. Thank you!"

The duo nodded in unison, their eyes full of hope and determination.

"You're welcome, we're classmates and friends. That's as it should be. ”

Elena smiled and shook her head.

It's really enviable to be young...... Although she is a little tired, but after helping to answer her doubts, it will bring people a double sense of pleasure - who made her such a kind-hearted and helpful little fairy, oh no, the little witch?

Back in her seat, Elena opened Standard Spells, Elementary, and was about to continue learning spells when a low chirp suddenly came from her stomach.

Mutter~

Why are you so hungry all of a sudden?

The girl looked out the window, and fields and pastures passed by - as they spoke, the train had left London.

It turns out that before you know it, so much time has passed, and it's almost time for lunch, which means that the small food truck with all kinds of snacks should be coming soon.

Elena raised her head, looked eagerly at Harry, who was concentrating on the Potions textbook, and swallowed quietly, such an opportunity to be a big dog eater in the open, you must not miss it. Not...... Let's just do it, Teacher Elena's chemistry cram school tuition.

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I'm sorry, these two chapters may be a little watery, on the one hand, there is no way to always be a high-profile plot outbreak, and on the other hand, the opening plot in the back is too important, and it takes more time to think about it.

PS: I'm going to buy gifts for everyone during the day today!!~~ I bought a lot of HP peripherals~ and then slowly give them to you~~

I'm a guilty Scottish round-faced skinny chicken, I feel like I've been writing badly lately, and I'm afraid to ask for a recommendation ticket to feed, and I'm on a self-hunger strike