This is what Ravenclaw looks like..

Chapter 417: End of the Experimental Course
"This is the last class, Taylor, but the requirements remain the same. Memorize the lab rules in detail first."

Although he lost the game, Professor Snape's expression did not change at all - after all, he was usually cold.

Such words made Andrew a little disappointed. To be honest, what he gained from this class was much better than that from a normal Potions class.

He didn't care about the test on materials. If he was willing to spend Galleons on it, he could still get the answers even if the error rate was a little higher. However, it would be too difficult for him to learn the description of the nature of the potion on his own without any instruction.

His rapid progress in Transfiguration was certainly due to his self-study, but without Professor McGonagall's countless private and targeted tutoring, it would be good enough for him to finish the graduation part this school year. As for the pursuit of rules, he would probably have to wait until the fourth or even fifth year.

But this was obviously not a good time to take remedial lessons in Potions - Slytherin had just suffered a crushing defeat, and Andrew had no intention of getting into trouble.

As Andrew was thinking, he recited the rules that he had memorized one by one. Only after he had recited the last one perfectly did Professor Snape nod.

"No problem. I hope you will always remember that today's lesson is about the last source of inspiration for the experiment: mistakes."

Professor Snape rarely ignited the flame under the crucible. "Mistakes are the most dangerous situations encountered in wizard experiments, especially some special experiments. Once a mistake is made, the wizard and his laboratory will disappear without a trace."

"But mistakes are unavoidable. Even in potions that require the most precision, missing steps or even incorrect techniques will not completely ruin the potion, allowing it to retain a certain effect. Although I think potions with mistakes are rubbish, they still have to be graded based on their effects."

Professor Snape showed a look of disgust on his face, as if he was remembering something unhappy.

"But some mistakes are even more useful than inspiration. As far as I know, more than thirteen potions were created due to mistakes. No matter how much inspiration and research one has, one cannot fully understand the magical properties of the potion ingredients, let alone infer the properties of those miracles created by accidents."

That is true. Not to mention the miraculous exploration with magic, it is normal for people who make cold medicine to make drinks, and for people who make heart medicine to make strange potions. This is very reasonable.

'But then again, the latter hasn't been invented yet, otherwise I'd better remind the professor and change a few potion classes... Never mind, Professor Snape doesn't lack the money, and he does. With the current efficacy, if some strange rumors spread, I will really have to enjoy the treatment of Gryffindor.'

Although there is indeed money to be made, Andrew still shook his head and gave up the idea - after the product comes out, there may be wizards who want to do the same. This money should be saved for wizards with insights. His laboratory funds are sufficient, so he does not need it.

Professor Snape did not sense that Andrew was secretly thinking about giving him some money, and continued to speak along the lines of what he had just said, "So, it is necessary to study the mistakes. If necessary, you can even try to deliberately figure out how each mistake was made and what led to the result of such a mistake."

"That's what Professor McGonagall did. That's what I did with the assignments that were full of loopholes. It really helped a lot..."

"So from now on after Potions class, I will allow you to quickly cast a Scapin Revealing Charm on all potion works, but I will only give you five minutes, Taylor, because I will grade them during that time."

???

Andrew was stunned for a moment, then nodded quickly, "Thank you very much for your generosity, Professor."

"Okay, that's it, get out of class dismissed, your lab session is over, don't waste my time."

Professor Snape waved his hand, signaling Andrew to leave quickly and not waste his precious rest time.

-

"Five minutes of judgment time, precious treasure..."

Andrew took a deep breath. Although he didn't have any potion lessons, it was still good. But at the moment, there was still a problem. He didn't know how to cast the Scarpin Apparition Charm.

This is a difficult question, because it is a strongly Potions-related question.

"However, it's not a big problem. If I study on my own, it's easy to find textbooks, but I don't have enough knowledge to understand the knowledge related to potions. But no one stipulates that I can't seek help from outsiders."

As for who the foreign aid is?

Apart from Dumbledore, is there any other wizard in the entire castle who knows more about spells than Professor Flitwick?
Although asking one's own dean about the spell on the potion is not a very good choice, it is still a spell after all!
Anyway, Andrew was thick-skinned enough towards his own dean, and he didn't have to worry about the Quidditch match - not to mention that his own college won, even if the Firebolt appeared during the match between Ravenclaw and Gryffindor, it was not his fault.

"There is still one week left during the Christmas holiday. One week of intensive study should be enough!"

...

"Dong dong dong."

Professor Flitwick raised his head and looked towards the door of his office. "Come in."

"Dean, good afternoon."

Andrew appeared and stood beside the table, looking at Professor Flitwick very sincerely, "I'm having trouble with a spell, Dean, and I need your help."

"Spell?"

Professor Flitwick raised an eyebrow. "I remember you were studying Latin recently. They all said you often chatted with the fat monk in Latin."

'There are some loose ends that need to be dealt with. After all, learning something does not mean permanent memory. Occasionally, conversations are needed to consolidate the knowledge.'

But Andrew was quite surprised to be seen by other people - you guys love to spread gossip so much!
"I learned some Latin because it has so much to do with magic, Professor."

"Well, it's a very wise choice, but I generally recommend it to students in advanced classes. After all, its greatest effect is to assist in summarizing the magical process of the then unified European magical world. If we take into account the changes of the times, the auxiliary effect is not as good as expected."

Professor Flitwick nodded. "But for you, it's good to learn now. After all, your research direction is different from others. Miss Granger and Mr. Weasley both prefer to study more magic. Nash is even more excessive. He likes unconventional spells. Only you like to study low-level spells over and over again."

"Of course, there is no good or bad. We have to make up for what we have missed. I am not supporting anyone. Magic is more free than you think." Professor Flitwick smiled and shook his head. "It's just that you have to study new magic. Because you don't have more knowledge about spells, the difficulty of getting started is a little lower. But I can provide a little help. What spell?"

"Scapin's Apparition."

...

Professor Flitwick laughed after a brief pause. "Although I would like to say that this spell is not my responsibility, the fact is - not only do I know how to use it, I can also teach it very well."

(End of this chapter)