International students at Hogwarts

Chapter 251 Basic Rules for Time Travel (Two in One)

He took out a stack of test papers from under the podium.

"OH—" the little wizards wailed for a while, but this didn't stop Professor Valery from handing out the test papers to everyone.After handing out the test papers, he sat down on the stool behind the podium, took out the bottle, and drank in small sips.

The test lasted an hour, and the amount of questions was not too much - for a Muggle-born student.

Lu Ren took the test paper and browsed through it. There were only twenty questions in total.

The first question: Please write the names of twenty Muggle countries and indicate the continents where they are located.

The second question: Please write the names of three Muggle state leaders/former leaders

The third question: Please write five ways for Muggles to travel.

……

Such questions, together with the space for answering them, took up three full pages of parchment.

The last question is No.20 question: Please write at least three ways for Muggles to communicate with each other.

It was very simple for Lu Ren.But many children from wizarding families don't understand at all.

"Twenty, my God?" The Masha wizard exclaimed.

"My God, what is a continent?" The pure-blood wizard exclaimed.

When Lu Ren finished filling out the test paper, many little wizards were still stuck on the first question.He even faintly heard the question "Which continent is this African country?"For him, this question is too simple. Counting around the border of the Central Plains can basically answer half of the question.

When the time was up, Valery did not collect the test papers. He took some time to talk about the reference answers, but he also emphasized that most of the test questions are open-ended, and the answer is not unique.Then the get out of class was over before the bell rang.

The homework he left is also simple. He used all means to complete the test paper. He will take it away for correction in the next class, and everyone must understand what they wrote in questions 1-5, at least have a general idea , For example, you mentioned bicycles in the third question, then you should have a general impression of bicycles.

He will spot check.

Thinking about it carefully, for a child from a pure-blood wizard family, this homework is really complicated.So after class, when Professor Valery left the classroom, many little wizards immediately sighed.

"I really don't understand, what's the point of doing this?"

"Know Muggles?"

However, the powerful weapons that Valery talked about before the class started calmed them down, so that these little wizards only dared to complain verbally, but they started to look for information and hug their thighs honestly.

However, Lu Ren and Hermione didn't have the slightest spare time. They were going to reverse the time, go back to [-]:[-] in the morning, and choose another class.

They watched, and when they saw no one was paying attention, they hid in a broom cupboard.Hermione fumbled in the collar of her robes for a while, and pulled out a long, thin gold chain from which hung a gleaming Time-Turner.

Lu Ren leaned over, Hermione also hung the chain around his neck, when she was about to turn the hourglass, Lu Ren grabbed her hand and stopped her movement.

"It suddenly occurred to me that I can't do this." Lu Ren's expression became very serious, and he suddenly remembered a huge flaw of the Time Converter, that is, the Time Converter will bring the user back to their past time where you are.

For example, if Hermione turned around three times, the time switcher would bring her and Lu Ren to the place where Hermione was three hours ago.It is now 10:20 in the morning, and it was 7:20 three hours ago. At 7:20, Hermione should have been in the girls' dormitory, and she and her roommates were most likely awake.If he and Hermione suddenly appeared in the women's dormitory, then they would be in big trouble - it's not that Lu Ren died socially because of trespassing on the women's dormitory, but that they changed the past time and met their past selves , it is very dangerous!
You know, Dumbledore told Hermione "must not be seen", and repeated this sentence twice.Being repeatedly emphasized by wizards of Dumbledore's level, it means that "being seen" is extremely dangerous.As a sensible child, Lu Ren knew very well the truth of the phrase "listen to people's persuasion to eat enough", so he didn't want to challenge the law of time.

Besides, there is an interesting time paradox: if Hermione travels back and is seen by herself, then the 7:20 she should also see herself appear at 7:20.Since she didn't see it, it means that Hermione didn't travel directly back to three hours ago, or that she was not found after traveling back, and this result is inevitable!

This involves the basic principle of the time converter.Be aware that a time-turner cannot change the past and the future.Or more specifically, the inability to change the past and future as observed by Time-Turner users.

The world line will end.

Take the hippogriff Buckbeak, for example.The three of Harry in the past saw the executioner slashing the ax vigorously, but they did not directly witness it being beheaded, so there was a possibility of saving Buckbeak.At this time, there are two timelines, one is that Buckbeak is beheaded, and the other is that Buckbeak is rescued, and the executioner takes a pumpkin to vent his anger.

After Harry and Hermione use the Time-Turner, the world goes to World Line [-], which of course would be World Line [-] if they hadn't gone to save Buckbeak.

These are all under the premise that they did not see Buckbeak being beheaded!If they saw Buckbeak's decapitated head, it would be doomed, and saving him would be next to impossible - as Buckbeak's decapitation was observed by Time-Turner users!
So in the future, no matter how many world lines there are, Buckbeak will definitely be beheaded. This is the end of the world line.

Let’s go back to Hermione at 7:20, since as a time-turner user, she didn’t see her future traveler at 7:20, Hermione and Lu Ren who travel back to the future will definitely not be caught by the past Hermione. Min saw it, but how could a person not see the two big living people in front of his bed?There is a high probability that Lu Ren and Hermione used some means to cover their bodies. This requires Lu Ren and Hermione to make preparations before crossing, such as putting on an invisibility cloak.

But what if Lu Ren and Hermione didn't have it?
There are too many possibilities.

On the bright side, maybe the time-turner failed all of a sudden, and they couldn't travel through time and space.On the downside, the Time Converter still failed, sending Lu Ren and Hermione to an unknown point in time, maybe the two of them have been lost in the long river of time since then.

There is great terror here.

Lu Ren briefly explained his conjecture to Hermione, and Hermione soon realized it, and couldn't help breaking out in a cold sweat.

"Then what should we do?" She panicked for a moment, not knowing what to do.

"Go to my dormitory and 'borrow' Harry's invisibility cloak." Lu Ren gave the easiest way.Since being seen would cause big trouble, wouldn't everything be fine if not seen?
Hermione also immediately realized the ingenuity of this, so they quickly slipped out of the broom cupboard, then went to the men's bedroom as quickly as possible, and took away Harry's invisibility cloak.

Next, they put on the invisibility cloak in the dormitory. Lu Ren asked Hermione to hang the chain around his neck. After that, Hermione turned the hourglass twice, and the messy men's dormitory disappeared. Lu Ren felt He was flying backwards at high speed, blurred colors and shapes flashed by, his eardrums were swollen, as if he was on a page on an airplane, he opened his mouth to relieve the pressure on the eardrums, but to no avail.

Soon, he felt his feet touch the solid ground, and everything became clear again.

He is standing in the auditorium.

At this moment, he was glad that he was wearing an invisibility cloak, otherwise, it would be difficult not to attract attention if he suddenly appeared in front of the public.Hermione took his hand, and the two walked out of the auditorium cautiously.

They thought about it and decided to take a divination class.

The classroom for divination is in the North Tower. Although Lu Ren has been in Hogwarts for two years, he has never been to the North Tower.And the road to the north tower was very long through the castle. Lu Ren climbed up the seventh flight of stairs, but felt that the distance between himself and the north tower hadn't decreased in the slightest.

Fortunately, with the help of the portraits on the wall, they did not go wrong
In the end, panting heavily, they climbed a series of rapidly rotating stairs, and when their minds began to dizzy, they finally heard indistinct voices from above their heads—the classroom has arrived.

They climbed the last few stairs to a small landing without a door.There was only one circular trapdoor with a brass sign embedded in it that said "Sybill Trelawney, Divination Teacher," but they didn't know how to get there.

However, the question was quickly answered, as if it could sense people, the trap door suddenly opened, and a silver ladder was lowered, landing right at Lu Ren's feet.

"Ladies first." Lu Ren said with a smile. Hermione gave him a blank look, but she still climbed up the ladder first.

After Lu Ren climbed the ladder, he came to the strangest classroom he had ever seen.In fact, the room didn't look like a classroom at all, but more like a mixture of an attic and an old-fashioned teahouse, with nearly twenty small round tables crowded in a small space surrounded by calico armchairs and bulging small futon.The little wizards who came to class were standing awkwardly in the corner of the classroom.

Everything in the room was illuminated by a hazy red light, because the curtains were drawn tightly to cut off the natural light, and all the lamps were covered with large crimson scarves, so the whole room revealed A burst of red light.It makes people feel uncomfortable, and after staying for a long time, they feel dizzy and feel like vomiting.

What's more, even though it's Scotland, and it's still September, it's still suffocatingly hot.And the culprit of all this is a mantelpiece that is fully placed at one end of the room, and there is a raging fire in it that is releasing heat unscrupulously.

On the fireplace stood a large copper teapot, emitting a strong, sickly aroma.The red light, the heat, and the smell make you want to throw up, and it's hard to understand what kind of people can keep their energy here.

The room as a whole has a circular shape, with a row of shelves on the circular wall, filled with dirty quills, candle stubs, tattered playing cards, shiny silver crystal balls, and a large pile of teacups—— They are all divination tools.

Lu Ren didn't see the teacher at first sight.Then a soft, inarticulate voice suddenly sounded from the shadows:

"It's great to welcome you in the physical world."

Looking towards the source of the sound, Lu Ren's first reaction was that he saw a huge, shiny insect.Professor Trelawney came out from the shadows, with his back to the fire. In the flickering firelight, Lu Ren could see that she was very thin, with a pair of eyes on her face that magnified her eyes several times. Double-fold glasses - this makes Lu Ren inevitably think of insects.Her neck is thin and long, with countless beads and chains hanging from it. She wears a light and transparent shawl decorated with many glittering metal pieces. She also wears many bracelets and rings on her arms and hands. Lu Lai made all kinds of noisy noises like a bunch of keys.

"Sit down, kids. I have a hunch they'll be the last ones, and we can start class," she said, as students scrambled into armchairs or slumped on futons.Lu Ren and Hermione sat around a table together, and Harry and Ron chose the table next to them.

"Welcome to Divination," said Professor Trelawney, choosing an easy chair in front of the fire.She looked at everyone with those seemingly ethereal eyes that were actually closer to dead fish eyes and said, "The turmoil and noise in the world will blur my third eye, so you probably haven't seen me before. I am Xi Bill Trelawney, Professor of Divination at Hogwarts. The prophet Cassandra Trelawney was my great-great-grandmother."

These strange remarks shocked the young wizards present, and the audience fell silent.Professor Trelawney adjusted her shawl gracefully, and continued: "So, you have taken a course in Divination, which is the most profound of all magical arts. I must say that before, if you have not Insight, I am powerless. In this field, books can only teach you so little..."

Lu Ren nodded in his heart, what Professor Trelawney said was indeed the truth.There is no way to practice the profession of prophet. If you were not born, then basically you will not have it in this life.All prophets are awakened by themselves, and I have never heard of any prophet who was cultivated the day after tomorrow.So check the family tree, if there is no prophet in the ancestors, don't expect to be a prophet.

And if it's not a prophet, then the divination class is basically meaningless-you know, the real prophet Trelawney himself can't grasp it, and he makes himself look like a liar.Among all the courses in the wizarding world, divination is the most talent-intensive, and Professor Trelawney told everyone this in the first class, which can be regarded as a vaccination for the enthusiastic young wizards.

And Professor Trelawney's words were like a bolt from the blue to Hermione, there was a course with a textbook that didn't help this subject much!This seemed unthinkable to Hermione.

(End of this chapter)