Ancient wizards return to Hogwarts.

"Can this spell be used to keep various potion materials fresh?" Daphne first thought of the application of stasis fields in the field of potions.

The efficacy of most potion raw materials will weaken over time. Daphne was thinking that if a stasis field was attached to the potion storage cabinet, wouldn't it be possible to keep the potion in the same state as when it was just taken off?

"It's only theoretically possible." Rice shook his head.

Most potion materials need to be pre-processed after being picked. After they are processed, the storage period will be greatly extended. Many materials can be stored for one or two years without any problems, and the duration of the stasis field is measured in hours. of.

Trying to use a stasis field to "preserve" is really unrealistic. Even Les, the inventor of the spell, cannot make the spell last for several years, because as time goes by, the surrounding space and the people within the range of the spell The time difference between spaces will become longer and longer, which will intensify the consumption of magic power.

"Can it be used to treat diseases? For example, to put a person in the moment before he dies." Astoria is more curious about whether this spell has any medical applications.

Les shook his head. If the whole person was included, the required range of the spell would be too large, which would greatly increase the difficulty of casting the spell.

However, there are indeed medical applications.

Rice had heard that Muggles would cure some incurable diseases by replacing organs, so his spell could be used in this regard.

This can really extend the transport time of the organ.

But the problem is that the magic world has its own medical system, and organ replacement is very rare. Most diseases that require organ replacement can be solved here through magic potions or alchemy. For example, if an Auror loses an eye in battle, the Ministry of Magic can install an alchemical eye for him.

Therefore, the stasis field has almost no application space at the medical level. At present, until the spell is improved to a qualitative level, its greatest use is to keep lunch boxes warm.

After answering the two little girls' questions, Les began to tell them the key points of casting the stasis field spell.

After listening to Les's "lesson", Daphne squinted her eyes and thought for a moment, and then suddenly realized: "Les, this is the spell you used to preserve ice cream before, right?"

Les:…

Daphne, are you distracted? You must be distracted, right? !

"No, that's an ordinary freezing spell. The main reason is that the taste of ice cream doesn't change much after it's frozen." After Les explained it to Daphne, he urged her to start trying to cast a stasis field.

In order to make it easier to observe whether her spell was effective, Rice also took out a small box with a small hole on the top. A wisp of smoke slowly poured out from inside, exuding a faint fragrance.

If Daphne's spell is effective, the smoke will be interrupted because the time of the smoke box is "frozen".

Daphne tried several times, but the spell was too difficult and none of her attempts were successful.

However, after practicing for a while, she gradually found the trick to freeze time in an area the size of a coin for a brief moment.

"Not bad talent." Les smiled and nodded.

Daphne's mastery of this spell is not much slower than Gryffindor's.

Astoria on the side looked eager to try. Seeing this, Rice pushed the cigarette box in front of her and said she could try it too.

Following Rice's instructions, Astoria recited the incantation and made the corresponding gestures. The next moment, the thin column of smoke above the cigarette box was interrupted for a moment.

Les:!

Daphne:? !

Both of them were surprised by Astoria's progress: Success the first time? Is this talent or luck?

Next, Astoria used her actions to prove that it was not luck, but that she could actually successfully cast the spell. Although time can only be stopped for a moment, it is also a transformation from zero to one. From now on, she only needs to improve the output of magic power to greatly extend the effectiveness time of the spell.

"Awesome!" If not in the library where silence was required, Les would have applauded Astoria.

Successfully displaying the stasis field in one go, this talent is really amazing.

Daphne pursed her lips, and she suddenly felt a sense of crisis: her sister seemed to be much more talented than herself? this……

She was afraid.

She was afraid that Les would no longer teach her, and that everything she enjoyed now would be taken away by her sister.

'But I'm healthier than her. No matter how talented my sister is, what can she do? How long can she live if the disease cannot be cured? 'This terrible thought flashed through Daphne's mind, and then she was frightened by what she was thinking.

How could you have such an idea!

Daphne was ashamed of her thoughts. She lowered her head to prevent Astoria and Les from seeing her eyes.

After confirming that Astoria could successfully cast a stasis field, Les decided to accept her as a student - for such a gifted child, it would be a crime for her to learn cutting spells, levitating spells, etc. in school.

If she was as good at controlling magic as her sister, then she would be the most talented wizard Les had ever seen.

"Let's go, I'll take you somewhere." Rice motioned for Astoria to go to the secret room with him.

"Where is it?" Astoria stood up, her eyes shining with curiosity.

"A place that only true Slytherins can enter." Les also stood up, and then he noticed that Daphne kept her head lowered, not knowing what she was doing.

"Hey, get up, we are going to the exclusive classroom." Les said to Daphne.

Daphne raised her head and asked in shock: "Can I go too?"

Les was stunned for a moment and asked, "Ah? Do you have anything else to do?"

Then he reacted suddenly, and he was dumbfounded: This kid doesn't think he has been "eliminated", does he?

Although my energy is limited, it is more than enough to take care of two students.

There is no limit to the number of heirs you can have!

Ravenclaw and Gryffindor could only choose one heir. It wasn't that they could only choose one, but that there was only one suitable one. Didn't he choose the two children Barrow and Adrian? Although there is a guy who often makes me angry, he is still someone who can enter the secret room and is qualified to become the head of Slytherin.

After knowing that she was still qualified to receive Les's teachings, Daphne suddenly became happy. She stood up from the stool, took her sister's hand and walked towards the secret room. She felt like she wanted to rush to the secret room.

After Daphne and Astoria left, Les felt a gaze on him.

He turned his head and found Ravenclaw's projection standing in the corner not far away, staring at him.

Les tasted the envy in her eyes.

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Here’s an update, good night everyone~

Interesting pictures in each chapter - Ginny's appearance drawn according to the original description