If you follow the order of B(1)C(2)CDC(6)D(7), then there will be a very serious problem!

Because in positions 3, 4, and 5, there is only one vial of Poison C, that is, even if the largest and smallest vials appear in positions 3, 4, and 5 at the same time.

It only allows you to avoid a bottle of Poison C, and you're faced with a dilemma between Potion A and Nettle D.

Because there is a bottle of Poison C in position 2 and a bottle of nettle wine in position 7, the first message "Poison C is always to the left of Nettle D" has been established forever.

This makes it impossible to tell the location of Poison C and Nettle D on seats 3, 4, and 5 with this message.

In the worst case, there will only be one maximum or smallest potions vial in slots 3, 4, and 5.

At this time, you can only confirm that it is not Poison C, but you can't confirm the potions in positions 3, 4, and 5, which bottle is the Potion A that will enter the next level.

Therefore, in the original book, Snape set the levels according to the order of immunity to Purple Fire B, Poison C, and Nettle D as C(1)D(2)CCD(6)B(7).

Is it the largest or smallest bottle that contains the potion that is immune to black fire in the next level?

Hermione replied - the smallest bottle in positions 3, 4, and 5.

As for the Purple Fire Immunity Potion B that returns to the previous level, it is the potion vial on the far right.

......

When Professor Snape tapped the table a few times in dissatisfaction, Arthur came to his senses, and he hurriedly put away the potions materials on the table.

This kind of puzzle is too simple for a student from a Muggle family. To add insult to injury, Arthur has written the answer to this puzzle into Harry Potter and the Philosopher's Stone.

Now that Professor Snape had himself make potions for the Potions level, Arthur had an idea to redesign a puzzle that was much more difficult.

With this in mind, Arthur proposed to Professor Snape, "Professor Snape, your Potions level is the most difficult of all levels, but it's all my fault that I leaked the mystery of the Potions level..."

"That puzzle is something I thought of a long time ago. I don't have time to think about new ones right now. Aren't you a genius writer, Mr. Pendragon, and it should be easy to think of a puzzle."

Before Arthur could finish speaking, Professor Snape began to wave his sleeves and speak impatiently, his eyes filled with some kind of emotion.

In fact, he was able to come up with this kind of puzzle that tested his thinking and reasoning skills when Snape was young, and when he went on a date with Lily (Snape thought it was a perfect date, and he didn't accept rebuttals), he got inspiration from the puzzle that Lily asked him to ask him.

Professor Snape thought he had perfected the puzzle. In Arthur's "Harry Potter and the Philosopher's Stone", the reason why Hermione Granger was able to reason was completely Lady Luck's curling!

He felt that when he set up the potions level this time, he would change the position of the potions. No one will be able to properly find the potion that leads to the next level.

"Yes, Professor Snape! I will complete the task you have given me. Aim to have all the potions and puzzles in your hands within a week."

Seeing that Snape did not refuse, Arthur hurriedly promised.

Designing new puzzles was a breeze for Arthur. He was happy to help Professor Snape redesign a new, more difficult puzzle.

In this way, those who have bad intentions for the Philosopher's Stone will not be able to clear all the levels that protect the Philosopher's Stone according to his Harry Potter and the Philosopher's Stone, at least not the new Potions level.

After carrying the potion in his arms into Snape's special potions room, Arthur said goodbye to Professor Snape and made his way to the Great Hall.

It's Friday, and in addition to the two Potions classes in the morning, the Slytherin students will have a flying lesson with the Gryffindor House students at 3 p.m., and an astronomy class with the Hufflepuff students at 7 p.m.

Now that it's lunchtime, Arthur decides to go grab a bite first

Lunch, then go back to the dormitory for a while.

"Mr. Pendragon, your flight training this time is excellent. I'll convince Captain Flint to let you join Team Slytherin Quidditch as a first-year student if you wish."

In the white snow, Lady Hooch watched Arthur land on a broomstick and then came up to him and invited him to join the Quidditch team again.

"I'm sorry, Girl Hooch. I just followed the knowledge and skills you taught me and completed my flight training. I don't have any interest in Quidditch."

Hearing Lady Hodge invite him to join the Quidditch team again, Arthur was speechless.

It's been more than two months since school started, and Ms. Hodge has already sent out countless invitations to Arthur.

It seemed that this had become a task she had to accomplish every time she taught Slytherin and Gryffindor first-year students.

"Oh, that's a shame. It's all right, Mr. Pendragon. If you change your mind, I'll help you get into the Slytherin Quidditch team."

Hearing this, Ms. Huo Qi said with a disappointed face.

"Hmm... Why did Hooch have to let Arthur join the Quidditch team? He's not as fast as I am!"

Ron, who had just descended from the sky, heard Arthur once again refuse Lady Hooch's invitation, and he said to Harry jealously as a Quidditch lover.

"Maybe Ms. Hooch has sensed some kind of talent from him."

Harry gave Arthur a complicated look in his eyes, then whispered a remark in response to Ron, and without waiting for Ron to say anything more, he was alone to clean the frost from his broomstick.

Since graduating from the school hospital a few days ago, Harry hasn't been as bubbly as he used to be. It was as if the whole person had been taken away by another soul.

This worries those who know and care about Harry.

Fortunately, Madam Pomfrey in the school hospital believes that Harry's personality has changed drastically, which should be caused by the sequelae. Tell Ron and the others not to worry, just let Harry recuperate.

But only Harry knew that he had turned into a monster that night, and wanted to destroy the entire Hogwarts School of Witchcraft and Wizardry, killing everyone in Hogwarts.

Harry didn't understand why he was a monster. I don't know who defeated me when I became a monster.

Ron and Neville were told how they walked out of a suitcase and were shocked to the point of being unable to move.

After hearing their speculation about who attacked Hogwarts, whether it was the mysterious man, and so on.

Harry fell into a deep remorse, and he didn't sleep peacefully for the past few nights, afraid that after he fell asleep, the monster would reappear.

Although Headmaster Dumbledore had comforted him many times, telling him that the monster would not appear again.

Harry would still be very worried, worried that he would be the monster again in the next second.