Drink Black Tea Calmly at Hogwarts

?(￣д￣): "Professor Scarlet is ill here. If he is not treated, he will be seriously ill."

Zhang Xu pointed at his head and said to Professor McGonagall.

He didn't expect that Scarlet would happen to be taking Professor McGonagall back to the dormitory for a chat today, which ended up being embarrassing.

Although Professor McGonagall was also a member of the Order of the Phoenix, Zhang Xu didn't know whether Lao Deng had told her some things, so he used an ambiguous answer to confuse today's matter.

As for whether Professor McGonagall believed it or not, Zhang Xu didn't know.

The next day, Sunday, was a rare day of good weather. It is rare to have such a windless sunny day in February.

Zhang Xu took a copy of "Longhu Mountain Examination Formation" and a bag of fried chestnuts and went to a stone table by the lake to write questions.

Since mathematical knowledge such as plane rectangular coordinate system, three-dimensional coordinate system, plane geometry and solid geometry were introduced into the study of arrays, the arrangement and research of arrays have entered a new era.

"Using the eye of the array as the origin, and setting true north as the positive direction of the y-axis, calculate the coordinate positions of each key point in the array, calculate the algebraic equations of the movement paths of each key point when changing the array, and analyze its connection with the effect of the array."

This is the question Zhang Xu is doing now.

This is also a required question type in the college entrance examination over the years, but the Z-axis is often added in the college entrance examination.

Similar to the Eight-Door Golden Lock Formation, this formation has a total of eight points: Xiumen, Shengmen, Injury Gate, Dumen, Jingmen, Death Gate, Shocking Gate, and Opening Gate. The formation is complex and often appears as the finale question of the college entrance examination. .

For example, last year's college entrance examination real question was to set the eye of the Eight-door Golden Lock Array on a 30-meter-high hill, surrounded by mounds ranging from 10 to 20 meters. The first question asked students to calculate the closed door. , the coordinates of the door of life, the door of injury, the door of Du, the door of scenery, the door of death, the door of surprise, and the door of the door.

The test point of this question is to calculate the position coordinates of the eight gates in the three-dimensional space. When setting up the array, the eight gates must be placed on the ground. It is impossible to dig a hole and put it in the pit or build a platform to put it on. Moreover, the position of the eight gates does not just need to be directly projected onto the ground by projecting their two-dimensional coordinates. The impact of the terrain height difference must also be taken into account.

While Zhang Xu was immersed in calculations, someone sat across from Zhang Xu. Then he picked up the sugar-fried chestnuts on the table and ate them while watching Zhang Xu answer the questions with interest.

After Zhang Xu finished solving the problem, he raised his head and greeted the person opposite.

"Hello, Professor Flitwick."

"I have something to tell you today." Professor Flitwick said to Zhang Xu, "O..Ls is ready. I suggest you use the wand you purchased from Ollivander during the practical exam. .Because the wand you usually use has not been registered with the Ministry of Magic, I am afraid that the Wizarding Examination Authority will not agree to use a wand that has not been registered by the Ministry of Magic in the exam."

Hearing this, Zhang Xu's expression turned extremely ugly.

Professor Flitwick was shocked when he saw Zhang Xu's bitter face.

"You haven't gone to Ollivander's to buy a wand, have you?" Professor Flitwick asked. "If you haven't, I can approve you to take leave in the afternoon and go to Diagon Alley to buy a wand."

At this moment, Zhang Xu had countless alpacas running in his heart.

Until now, Zhang Xu had never told anyone that he bought a wand from Ollivander, and Ollivander had never mentioned to anyone that he had sold a wand to Zhang Xu.

In addition, when Zhang Xu visited Ollivander's wand shop for the first and last time so far, there was no one else in the store.

Therefore, Zhang Xu's purchase of the wand from Ollivander became a secret that only the two of them knew.

?Enter the dividing line of memories?

It was a noon many years ago. Zhang Xu, who came to Diagon Alley for the first time, started his shopping trip after exchanging currency from Gringotts.

After spending some time buying school supplies such as textbooks, crucibles and scales, Zhang Xu strolled to the front of Ollivander's wand shop.

Looking at the shabby signboard above the store door, Zhang Xu thought for a while and then walked into the store with the idea of ​​buying local products.

As the most famous monopoly in the British wizarding world, the wand shop's furnishings are so low-key that it belies its social status.

But perhaps it is this low profile that has allowed the Ollivander family to stand firm in the British wizarding world for so many years.

"Good afternoon, sir." Ollivander walked up to Zhang Xu and greeted him, "Are you here to buy a wand?"

Ollivander, who is said to have one hundred and thirty thousand wands and their buyer's information in his head, appeared. Zhang Xu curiously looked at the first "celebrity" he met after arriving in Diagon Alley.

"Aside from wands, do you sell other things here?" Zhang Xu asked curiously.

"Sometimes some wizards will come to me and want to purchase some urgently needed raw materials that I can't buy in the market for a while, and I will use them when making wands." Ollivander said to Zhang Xu, "But I We never sell those to them, we only sell wands."

Zhang Xu didn't know what to say.

"Are you a new student at Hogwarts this year, sir?" Ollivander asked.

"Yes." Zhang Xu replied, "I'm going to Hogwarts and I'm going to buy a wand today."

"Which hand do you like to use?" Ollivander asked after taking out his famous automatic tape measure.

After some comprehensive measurements, Ollivander took several long boxes from the shelf and placed them in front of Zhang Xu.

"Chestnut wood, unicorn hair, thirteen inches. Three consecutive heads of the Wizengamot had chestnut wands with unicorn hair."

As a result, as soon as Zhang Xu picked up the wand, Ollivander took the wand away from Zhang Xu's hand.

"It doesn't suit you. I'll look for it again."

Ollivander said as he searched among the pile of boxes.

"Dogwood, dragon's nerve, eleven inches...oh, it doesn't fit."

"Hazel...still doesn't fit."

"Acacia wood...ah, what a picky guest, and not suitable."

"Black walnut...yes, it's really not suitable for you, then try this cedar wood again."

As time went by, more and more boxes were placed next to Ollivander and Zhang Xu, but there was still no wand suitable for Zhang Xu to use.

Zhang Xu even brought a standardized wand brought from China to Ollivander for reference, but he just shook his head.

Zhang Xu's mind immediately came alive, "Could it be that the plots of mysterious objects that often appear in various novels would happen to me?" Zhang thought.

"No! Impossible!" Ollivander shouted hysterically after a red oak wand failed, "How could any wizard not find a suitable wand in the Ollivander family store!"

Ollivander's performance frightened Zhang Xu, fearing that he would shout "I am ashamed of my ancestors" and then hit the sign on the store door to death.

"Now there is only one way left. There is no wizard in this world who can't find a suitable wand in the Ollivander family shop." Ollivander looked at Zhang Xu with his bloodshot eyes and said.

"Uh... you don't know how to kill people and silence them, right?" Zhang Xu said to Ollivander cautiously, while quietly moving towards the door of the store.

"Hey, this is a good method." Ollivander suddenly said, "This way there will be no wizards in the world who can't find a suitable wand from me."

At this moment, the idea of ​​getting the hidden SSR wand in the traditional routine after all the hard work ran away from Zhang Xu's mind.

If Ollivanders hadn't closed the door in time, Zhang Xu would have run out onto the street shouting "Ollivanders killed someone".

After Ollivander spent several minutes assuring Zhang Xu that he had no intention of killing anyone, Zhang Xu came down from the top of a sturdy shelf.

After Zhang Xu sat back down on the guest bench, Ollivander told him his solution.

Ollivander said: "Sir, sit down on the stool, then close your eyes, calm down and slowly sense the position of the wand that calls you."

Zhang Xu took a deep breath, relaxed his whole body, then closed his eyes and entered meditation mode.

Zhang Xu was no stranger to this method of searching for magic items around him after entering trance, and he quickly entered the state.

Not long after, Zhang Xu felt that something in a certain direction seemed to attract his attention. Zhang Xu stretched out his hand in that direction, and then silently recited a spell in his heart that was similar to the Feilai Curse.

Ollivander saw Zhang Xu, who had his eyes closed, suddenly reaching towards the cabinet under the counter, so he walked there.

Just when Ollivander was about to open the cupboard door, he heard a "bang" sound, as if something flew out from the cupboard after knocking the door open.

Then there was another "bang", and a long box suddenly hit Ollivander's forehead.

When Ollivander walked up to Zhang Xu, rubbing his forehead with one hand and holding a particularly long box in the other, Zhang Xu felt a little embarrassed.

"You give it a try." Ollivander said after handing the box to Zhang Xu, "I don't remember there is such a wand in the cupboard."

Zhang Xu took the box and opened it, then he was stunned.

"Mr. Ollivander, are you sure this is a wand suitable for me to use?" Zhang Xu asked with some uncertainty.

Zhang Xu looked at the rolling pin in the box, which was more than half a meter long and about four centimeters in diameter... No, it was a magic wand. His whole body felt bad.

This wand is either slender and delicate, or it is as domineering as the one in Gandalf's hand that can be used as a stick, or it is as handsome as the domestic mahogany sword.

But is this wand, which has a 99.99% synchronization rate with picking up a rolling pin, really not Ollivander's conspiracy?

"Since you have chosen this wand, then it is suitable for you to use." Ollivander said, "Judging from the box, it should be the work of my ancestors more than three hundred years ago. Because for three hundred years It never waited for the right wizard to appear, so I left it out."

"Obviously, you are the owner who has been waiting for it for more than three hundred years. Although this wand was made more than three hundred years ago, the technology used in it is still not outdated even now. I can use O The credibility of the Levander family is guaranteed.”

Ollivander was like a salesman selling his products to Zhang Xu.

Hearing what Ollivander said, Zhang Xu almost believed it, because when Zhang Xu picked up the wand from the box, a piece of parchment fell out.

The parchment note looked very historical. Ollivander picked up the note and read it: "While traveling in America, I found that there were many interesting materials there, so I used white solid wood and thunderbird tail feathers. I made this... this..."

Ollivander didn't say anything for a long time, so Zhang Xu stretched his head over unceremoniously, and saw that at the end of the paragraph, it was written "This cane that can cast magic."

At the end of the note was the signature of an Ollivander family member, and the date was 163o.

"I think your ancestor was not very tall, Mr. Ollivander." Zhang Xu said while holding the crutch and looking at it. "I think I still know the words 'magic wand' and 'crutch'." of."

The cold sweat on Ollivander's forehead was visible to the naked eye. If it was spread that he sold the crutch as a magic wand to others, the family's thousand-year-old trademark would be in his hands.

If the other party was not a new student at Hogwarts, Ollivander might have planned to kill him and silence him.

"It's just a wand, sir." Ollivander wiped his cold sweat and said firmly to Zhang Xu, "Although it has some differences in appearance from other wands, its structure and function are the same as other wands. There's a difference. When I said 'crutch', my ancestors were just joking about its appearance."

After hearing Ollivander explain so hard, Zhang Xu didn't want to say anything more. In the final analysis, he just wanted to buy a wand as a souvenir to take home and collect. What happened today can only be used as conversation material in the future.

So after Ollivander quoted the price of this wand for only one galleons, Zhang Xu decided to buy it. But Ollivander also has a small request, that is, don't tell anyone about today's events.

Fortunately, Zhang Xu came to Diagon Alley half a month in advance, so there were no guests at Ollivander's place all afternoon, otherwise Ollivander would have cried.

※Return to the dividing line of reality※

It's just that Zhang Xu has kept this wand in his treasure bag for so many years since he bought it, and has never used it to cast a spell.

Professor Flitwick now told him that he had better use that wand during the exam. Zhang Xu didn't know what to say for a while.

After Zhang Xu reached into the treasure bag and tinkered with it for a while, he finally took out the wand from a corner and placed it in front of Professor Flitwick.

"This is the wand I bought from Ollivander's." Zhang Xu said to Professor Flitwick.

Professor Flitwick looked at the wand and fell into confusion.

"It can be used as a crutch for me," said Professor Flitwick.

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