It was already dark, and the windows of Hogwarts Castle were shining in a soft warm light.

By the end of the day's lessons, the classrooms and corridors in the castle were empty, and with the exception of a few energetic children, most of the students had returned to the warm common room to rest.

It's just that the deafening "thunder" just now, and the subsequent strong tremor that spread throughout the castle, were like a stimulant, instantly sobering up the students from their drowsiness a little, and in the dormitories of each college, they were whispering guessing what was going on.

“...... Hogwarts is a school, a place for everyone to learn and live, and I understand your thirst for knowledge, but when you try some dangerous magical experiments, can you ask the professors to help you in advance, or change the time and place, instead of when everyone is about to take a break......

In the Headmaster's office at Hogwarts, Dumbledore was dealing with a sudden explosion.

At this time, the old man had changed into a purple nightgown covered with stars and moon patterns, and there seemed to be a flame burning in his blue eyes, and his originally kind and kind face was now completely gloomy.

And not far in front of him, four gray-headed little Lori sat side by side with their heads down, looking particularly well-behaved and cute.

“...... Half of the history of magic classroom, an entire wall is gone, just looking at that tragic ruin, even if an angry fire dragon forcibly rushes out of the classroom, it may look better than it is now......"

Dumbledore subconsciously looked at the empty corner on the right and sighed helplessly.

Due to the events in Ukraine earlier this afternoon, Gellert Grindelwald, who had gone out to stabilize the situation, has not returned for the time being, so now he is the only one to deal with the mess caused by Elena.

"It was an accident, Professor. I didn't expect that the powerful explosion spell, combined with ammonium nitrate and nitric acid mixed explosives, would produce such a chain reaction, and there must be some [magic chemistry] principle that we have never discovered before. ”

Elena glanced at Dumbledore, whose face was terrifyingly dark, and explained cautiously.

In fact, she didn't try to make high-explosive explosives such as TETRYL or HMX, according to her original plan, she just used the materials at hand, and simply combined the most basic home-made ammonium nitrate and nitric acid explosives.

Theoretically speaking, this kind of earth bomb with low combustion efficiency, slow energy release speed, and low explosion energy level is not too dangerous at all, compared to the configuration of the cruise missile [cyclotetramethylenetetranitrate], at best, it is about the same power as the firecrackers that everyone gathered together to listen to during the Chinese New Year in the previous life.

And in the experimental process a few days ago, this was indeed verified - according to Elena's estimate, if it was a conventional grenade filled with earth explosives, after the first reinforcement, she could even directly block the shock wave with her bare hands.

It's just that tonight she had a whim, wanting to combine magic and art.

The explosives piled up in the corner of the classroom were detonated by a powerful explosion spell, instead of using the conventional high-temperature detonation method, and the final result was completely unexpected by Elena - the power generated by the half-ton explosives directly increased from the original grade by more than ten times, and directly lifted the wall by the window of the history of magic classroom completely away.

"Dynamite?!Chain reaction?![Magic Chemistry]?!"

Dumbledore took a deep breath, and with each repetition of Elena's words, he felt the veins near his temples pound violently, and his heart beat like the drumbeat of an ancient march.

"Well, it's not actually explosives, it's just ordinary flammable and explosives. ”

"Chain reaction is actually a chain reaction, which refers to a chemical reaction in which the change of a single molecule causes a series of molecular changes. As for Magi-chemical, it's a term I coined, which means magic chemistry......"

Elena explained quickly as she observed the old radish's face.

The establishment of [Magic-Chemistry] was still a question she had been thinking about for the past few weeks, but it was not until today's experimental accident that she was completely convinced of the necessity of the creation of this discipline.

Obviously, the power of magic lies in influencing objective matter with thoughts and emotions.

Or more precisely, it is to attach certain magical properties to the objective laws of physics and chemistry, and when there is a fit or synchronization between the two, it is very likely to produce a wonderful phenomenon - similar to a universal catalyst.

For example, if you give a bunch of explosives the magical property of "explosion", and clearly guide this property to change with the correct chemical logic, then the effect is the same as that caused by Elena and the others not long ago.

“...... Of course, this is not necessarily because of this. It is also possible that the Explosive Spell causes the explosives to become granulated, causing a more complete combustion reaction, resulting in a more powerful chemical reaction. As for the specific reason for this, I think it may take several repeated trials to ......."

Standing in the principal's office, Elena explained, and subconsciously began her own deduction again.

The wand in Elena's hand shook slightly, and a series of English characters and chemical formulas appeared out of thin air in the air, accompanied by the girl's voice, constantly evolving and deriving the chemical formula.

"That's enough!

Dumbledore waved his hand, and the powerful magic directly scattered the "board book" drawn by Elena in the air, and stared at the unrepentant white-haired ballooth with anger on his face, and his breathing gradually became heavy and rapid.

"I'm not asking you for specific reasons, or details of magic!

Looking at the white-haired dumplings with a face full of reasonableness, and even a serious explanation of the motive for the crime, as well as the next plan for the crime, the old wizard felt that his heartbeat couldn't help but increase a little faster - this, again, the familiar angina.

A look of pain flashed on the old wizard's face, and he took out a small medicine bottle from his bosom tremblingly, poured out a few pills from it and stuffed them into his mouth, closed his eyes and was silent for several seconds before relieving himself.

Fortunately, some time ago, Madam Pomfrey imported a batch of drugs from the non-magical world.

This drug, called "nitroglycerin tablets", has a wonderful effect, especially after being magically treated by Madam Pomfrey, which can quickly relieve the angina of these days in just a few seconds.

After a few attempts, Dumbledore decided to have the school infirmary purchase an extra batch in a few days, and prepare some in the Headmaster's office and Grindelwald's office in case of emergency—after all, no one knows if something unexpected will pop up these days.

Dumbledore reopened his eyes and looked at the little witch in front of him with a solemn expression, his tone extremely serious.

"Elena Kaslana, you should be glad that no one was in the classroom at the time! Otherwise, no matter how powerful your healing magic is, you won't be able to revive a child who has been reduced to pieces. ”

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Chapter 1, Goo~