Cowen shrank his neck when Snape patted him, and then looked at the angry look on the other side's face, Cowen couldn't help but spit out the tip of his tongue slightly.

For the past two months, Kewen and Snape had known each other for a long time. Although the other party had a lawsuit face all day, he was a very responsible person who was a bit cold on the outside and hot on the inside.

At this time, Snape's action that was like corporal punishment, Kewen didn't pay attention to it at all. After all, he also reacted at this time, and he was wrong.

"Have your Potions class been in vain?" Snape opened his mouth at this time, and continued to stare at Kewen angrily. He asked in a flat tone, "Now tell me, what kind of potion is this?"

"Living hell potion, professor, also known as life and death water." Kewen replied with a guilty conscience.

"What about the function and source?" Snape asked, continuing to stare at Cowan.

"It's a sleeping potion. The first-year potion textbook contains a brief introduction to the potion."

"Then why were you hiding?" Snape said, raised his hand again, and slapped the rolled paper in his hand on the back of Kewen's head.

"Sorry professor." Kewen smiled awkwardly: "I have only read the introduction in the book, but I have never seen the actual medicine. You said it was a 'hell medicine' just now, but I didn't react for a while."

Snape heard the words with a light "hum", believing that he accepted Kewen's statement.

"Professor." Ke Wen saw this and climbed along the line: "Can you teach me how to configure this potion? The first-year textbook only has an introduction to potions, and there is no configuration method."

"This is a course only for the fifth grade." Snape said coldly as he packed up the potion, "You can get an 'O' from me in the final exam first."

"But professor..." Kewen blinked innocently: "In the past few months, I have perfectly prepared all the potions in the first-year courses in front of you."

Snape's tidying motion stopped, and the corners of his eyes twitched indistinctly.

Kewan was right, for the past few months, after every Potions get out of class, Kewan would go to Snape's office to ask about the perfect configuration of Potions.

Every time, after Snape's demonstration operation, Kewen will re-enact a bottle of perfect potion.

Now, Kewen has indeed completely mastered all the potions in the first-year textbook.

Hearing Kewen's words at this time, Snape couldn't help turning his head, staring at Kewen coldly for a while before continuing the movement in his hands.

At the same time, Snape said without hesitation: "The curriculum spanning four grades is too early for you, you should look for a textbook first."

When the words were over, Snape also packed up the potion, stopped talking about Kewen, and walked straight out of the practice room.

When the footsteps were gone, Ke Wen chuckled and whispered, "Die Aojiao..."

After a few spells were released, Kewen packed up the practice room, and then walked outside, thinking: Where can I get a fifth grade textbook? Which senior should I borrow it from?

Just thinking of this, Kewen's footsteps suddenly stopped, and he turned his head to look to the left of the door.

There, a somewhat worn cabinet was standing there.

"Speaking of which..." Kewen turned his footsteps, and while walking towards the wooden cabinet, he muttered in a low voice, "I haven't seen what's going on in this cabinet for a long time."

After the words fell, Kewen also came to the wooden cabinet and raised his hand to open the cabinet door.

Inside the cabinet, there was a solitary book with a tattered cover and a scroll.

"Have a book?" Kewen was slightly stunned, and he took out the book from the cabinet, and then he was stunned again, because the words "advanced potion making" were written on the cover of the book.

"Is it such a coincidence?" Kewen tilted his head in surprise, then raised his hand and slapped the book hard, shaking off a pile of dust.

Open the cover of the book,

The blank page on the first page has three lines of handwriting: This book belongs to the Half-Blood Prince.

The phrase in the third line triggered the keyword, and the memory related to 'Half-Blood Prince' instantly appeared in Kewen's mind.

After reviewing his memory, Kewen couldn't help but feel that he had obtained a treasure. He ignored the rest, and immediately opened the book gently and read it from the beginning.

There are a lot of notes and annotations in the book. Kewen is eager to absorb the knowledge in the whole book. At the same time, the secret is worthy of Snape's notes. now...

As Kewen continued to read, he found that the book not only contained notes on the configuration of potions, but also six spells that he had not learned before, namely 'Shenfeng Wuying', 'Fuchsia', ' Close your ears and listen', and the 'counter-mantra' of these three mantras.

It wasn't until the last page was turned that the 'plug-in' completely memorized all the content, and Ke Wen was very satisfied.

After thinking about it, he put the book back in the wooden cabinet. Because the information in memory shows that this book will help Harry Potter, the protagonist of this world, to overcome many difficulties in the future.

Kewen felt that he should not spoil the protagonist's adventure, anyway, he had already memorized the contents of the book.

Looking at the dark sky outside, Kewen secretly said that he was broken, and he read a book for so long without knowing it, I am afraid dinner time will be over.

No longer procrastinating, Kewen immediately trotted towards the auditorium.

However, in the end, it was a step slower. When Kewen arrived at the auditorium, he saw the scene of all the leftovers disappearing from the dining table in an instant.

"Okay..." Kewen lowered his shoulders weakly, and left the auditorium with the crowd returning to their respective dormitories.

Along the way, Kewen was still thinking about the contents of the book in his mind. At the same time, because of his great interest in potions, an idea suddenly appeared in his heart.

This is the magic world, and most things can be done by magic, so can you make some magic equipment to detect the medicinal properties of herbs?

For example, by improving the existing scales, when weighing herbs, it is not like the weight of herbs that can only be weighed today, but also how much medicinal properties are contained in herbs.

Also, the crucibles in the magical world today do not have the function of controlling temperature changes, and can only be manually controlled by the person who dispenses the potion.

So what if you make a crucible that can be set in advance and then automatically control the temperature change?

Finally, add a 'stirring rod' that can also be set in advance, and then can be automatically stirred according to the settings...

The medicinal properties detection device can get rid of the intuition that Snape said, and accurately measure the medicinal properties of the herbs required for the potion.

The automatic crucible can control the heat according to Snape's standard; the stirring rod can be stirred according to Snape's standard.

In this way, wouldn't it be easy to make the perfect potion?