From Azkaban

"This strict selection method is completely different from Voldemort's practice of accepting anyone who is a pure-blood. This guy obviously only accepts the elites he likes."

Because Locke's desk was located right outside his cell door, Sirius was able to observe everything clearly.

He sat on his bed and watched Locke look at the five people at the table with eyes full of powerful oppression.

Because Locke didn't speak, the entire corridor became very quiet for a moment.

The deathly silence lasted for about five seconds. When Locke saw that the five people began to sweat on their foreheads, he withdrew his mentally oppressive gaze.

"This way these guys shouldn't dare to talk nonsense."

Although these five people were very cooperative, Locke still gave them a warning to be on the safe side so that they could understand their current situation and put an end to any possible little thoughts.

Feeling Locke's gaze shift away, the five people breathed a sigh of relief. It seemed that they had passed the first level.

But they immediately became nervous again, because Locke, who was sitting in the main seat, crossed his hands in front of him, then leaned forward slightly and spoke.

"Okay, to avoid wasting time, I will get straight to the point. From now on, I will give you two minutes to organize your thoughts. After two minutes, from left to right, each of you will speak out your understanding and experience of the Traceless Extension Spell. You can speak freely, and others can also express their opinions if they hear something wrong."

Locke's voice was neither hurried nor slow, and his tone was very calm, but to the ears of the Death Eaters, it brought endless pressure, making them involuntarily nervous.

After hearing Locke's words, all the Death Eaters, whether they were sitting at the table or standing in the cell, had only one thought in their minds.

"The crucial test is coming!"

The five people who thought that Locke was preparing to test their knowledge and abilities quickly adjusted their state and began to frantically recall all the knowledge and memories about the Traceless Stretching Spell in their minds.

"I understand!"

Looking at the five Death Eaters who closed their eyes and began to recall, Sirius suddenly understood why Locke chose the Traceless Extension Charm instead of dark magic.

"There is no point in choosing the Dark Arts. After all, most of the Death Eaters here are experts in the Dark Arts. There is no point in verifying the outcome of something that is already known."

"But the Traceless Stretching Charm is different. This kind of spell is useless in combat and only those with strong talents would have the spare energy to learn it. Not to mention that he has to test it himself and only gives two minutes. With such harsh conditions, those who are finally selected must be elites even if they are not the best."

Thinking of this, Sirius somehow felt a sense of honor and pride in his heart.

Unlike these Death Eaters who were waiting for tests, Sirius was chosen at the very beginning.

Many things need a comparison. Before, Sirius didn't feel anything about being chosen, but now when he saw Locke's extremely harsh conditions, the feeling in his heart suddenly changed.

Regardless of Locke's situation, just look at Locke's strength and his strict selection criteria. Sirius was able to be selected at the very beginning. To be honest, the feeling of being recognized is really good.

"No, this guy is completely different from Voldemort. Rodolfo is right. He is better than Voldemort and doesn't look as violent as Voldemort."

For twenty-three days, Sirius had been observing Locke, and would usually say a few simple words to Locke when he came to get his meals.

Over the past few days, Locke gave people the overall impression of being friendly and polite, with a calm and elegant temperament, and a faint smile on his face.

"That kind of temperament can't be faked. Compared to Voldemort, who is obviously extremely crazy, he is much stronger."

Just as Sirius was thinking about this and that, two minutes passed quickly. Locke, who controlled the time accurately, raised his left index finger and tapped the table twice.

"The time has come, gentlemen. Now please show me your knowledge and I hope you won't disappoint me."

The five people who had their eyes closed opened their eyes when Locke knocked on the table. Hearing Locke's words, the five people nodded quickly. Then the first person on the left took a deep breath and spoke out the speech he had prepared.

"Sir, in my opinion, the Traceless Extension Spell is............."

The first person's narration was very organized and progressive. It was obvious that he had learned the Traceless Stretching Spell quite well and was indeed worthy of the title of a pure-blood elite. No matter what kind of person he was, he still had this level.

Soon, the first person finished speaking, and no one raised any opinions during the conversation. Then the second person took over.

One person after another, an hour passed quickly.

"Very good. The five of you are indeed elites with real talents and knowledge. I am very satisfied."

Locke was indeed very satisfied, so he did not hesitate to praise, and the five people who heard his words all showed excited expressions.

"Thank you for the compliment. I'm glad I can satisfy you."

The Death Eater who spoke first bowed his head towards Locke and the other Death Eaters followed suit.

"You guys are great. Okay, that's it for now. I'll come back tomorrow."

Locke smiled slightly and raised his head, then pushed open the chair and stood up. Seeing this, the five Death Eaters also stood up quickly.

"Sir, please take care."

The Death Eaters did not expect to be taken out by Locke immediately. From the moment they sat down at the table, they had realized that it would probably take some time for them to get out.

Just like that, Locke walked down the stairs under the gaze of the Death Eaters, but halfway down he stopped and turned to look at the five Death Eaters still standing in the aisle.

"I will not remove the deformation of the cell door. It will last for about three days. Enjoy this limited freedom."

After saying that, Locke walked downstairs again. After the five people in the corridor reacted, they all stood there in disbelief. After about ten seconds, crazy laughter filled the entire corridor.

Under the envious and jealous gazes of all the Death Eaters in the cell, the five people ran in one direction one after another. There was a doorway for Dementors to enter and exit and see the outside world.

Don't get me wrong, the five people were not trying to escape. After all, they had no ability to deal with Dementors, and the doorway was on the top floor with no way down. The reason they went there was just to take a look outside.

After so many years here, they almost forgot what the outside world looks like.

And as Locke said, they should enjoy the freedom they are given, which, although limited, is still extremely precious.

Volume 1: Chapter 17 Locke: My future is promising

Locke walked briskly as he organized and summarized the knowledge of the five Death Eaters in his mind. Knowledge is endless, not to mention magic, so the knowledge of the Traceless Extension Spell given by each of the five Death Eaters was very different.

Whether it is experience, or each person's perspective on this spell, or each person's understanding of the use of this magic.

Because everyone is different, the knowledge in Locke's head seems a bit complicated at the moment. However, the complexity is not a problem, but an advantage, because the insights and experiences of the five people are all good references and evidence.

Just like that, Locke quickly walked back to his cell. As soon as he entered, he raised his hand and turned the originally cozy little room into two compartments of different sizes.

Thanks to the knowledge and experience of the five Death Eaters, Locke knew a lot of practical techniques and optimization methods for practicing the Traceless Extension Charm.

This kind of methods and techniques cannot be learned outside. They are precious knowledge accumulated from generation to generation in pure-blood families and passed down through word of mouth and continuously improved.

This is a heritage that is more precious than ordinary wealth. It is usually passed down within pure-blood families and is impossible for outsiders to learn.

This is also the reason why many pure-blood families have been able to stand firm. It is because the modern era has progressed too fast, and the decline in population has caused the extinction of descendants, which has led to the decline of some pure-blood families.

But even in their decline, the wealth and knowledge these pure-blood families possessed far exceeded that of ordinary wizards.

After all, who knows how many strange and wonderful things are stored in those family treasure houses, and how many precious books have been passed down.

These pure-blood families are just like some nobles in the Muggle world. They seem to have no money, but in fact, it is because they are reluctant to sell off their family assets.

"As the saying goes, a lean camel is bigger than a horse. These Death Eaters really didn't disappoint me. They are full of good ideas."

Locke was standing in a small cubicle. This was a technique for practicing the Traceless Stretching Spell, which was to try to practice in a small and regular space at first.

Standing in the separated cell, Locke began to practice the Traceless Stretching Spell. While practicing, he also sorted out the complicated knowledge in his head through practical insights.

"Fortunately, I know Transfiguration, which allows me to save a lot of effort and start practicing directly."

Through the knowledge obtained from the five Death Eaters, Locke knew that the magic of the Traceless Extension Charm, in addition to its spatial characteristics, also contained some intermediate and advanced techniques of Transfiguration.

If normal Transfiguration is to transform all visible things in the world, then the Traceless Stretching Spell is to transform, fold and expand the invisible space.

Of course, it is definitely not that simple. The magic of Traceless Stretching Spell covers a wide range of knowledge, and sex change is only a part of it.

According to the knowledge given by the five Death Eaters, the magic of the Untraceable Extension Charm seemed to have originally been inspired by a small magical animal that only liked shiny things.

This is the most popular saying, so there are also some factors of this aspect in this magic system.

Therefore, when a wizard uses this magic, he needs to first choose the object for which he wants to expand the space, and then cast the spell after firming up his desire and belief, that is: I want this object to be able to hold more things, I want its internal space to become larger so that it can hold more things.

If you can successfully complete this step, then congratulations, you have successfully mastered the Traceless Stretching Spell and can begin to expand the internal space of a fixed object.

But this is just the beginning, and the space that can be expanded is not very large, so it can only be used for storage and nothing else, let alone for housing living things.

Then, going a step further, the wizard can fix this magic on an object, such as a suitcase or tent approved by the Ministry of Magic, or the bag made by Hermione in the original book.

At this time, the traceless extension charm can actually be regarded as a magical item manufacturing technology, because the traceless extension charm that is constantly inside is very stable and does not require frequent maintenance by wizards. Even Muggles can use it without any obstacles, and the inside can be used for living things to survive.

This is also the fundamental reason why the Ministry of Magic announced regulations and strictly prohibited the private use of the Invisible Stretch Charm.

After all, if this magic is abused, it is very likely to be accidentally released into the Muggle world. By then, the so-called Statute of Secrecy will become a joke, and the Ministry of Magic will be busy.

This is generally the limit of what a normal wizard can achieve. To go further, talent and more investment are needed.

And if you really go one step further, then congratulations, you have reached the level of a big boss.

At this point, the first thing that comes naturally is the increase in the space that can be expanded, and then it involves the top technique of transformation, multiple transformation.

Just like the Multiple Transfiguration spell, which continued to transform based on the previous transformation, the more advanced Traceless Extension spell used this technique to continue to transform the space that had already been expanded, cutting the original complete space into semi-independent spaces.

The space that is cut out is independent, but it is not completely disconnected from other spaces and still retains a stable connection.

To make a simple analogy, the separated spaces are like rooms in a large house. They are independent when the doors are closed, and can be connected to each other when the doors are opened.

At this stage, the Traceless Extension Spell can no longer be used to store objects and expand space. What this magic can do now will far exceed the previous stage.

If you want to go further, you will need to acquire more knowledge, because the Traceless Stretch Spell has become an excellent carrier that can be developed freely in various directions according to the user's ideas and abilities.

The most classic example of this stage is the box in Newt's hand in the movie. He directly built a huge micro-biosphere in the box, which captive and protected a large number of magical animals.

When Locke watched the movie, the only thing he knew about Newt's box was that it was really awesome. He felt that it was exactly the love box of his dreams and thought how nice it would be if he could have one.

Now that he has come to the world of Harry Potter, and has come into contact with magic himself and learned the relevant knowledge, Locke has a better understanding of how powerful magic is.

After all, compared to before, he now knows more clearly what Newt's box represents.

That box is a culmination of top-notch transfiguration, top-notch traceless stretching spell, top-notch weather spell, and some magical knowledge that Locke has not yet learned. It is a top-notch magical item that can be used as a family heirloom.

Really, for many things, only when you truly understand them can you truly understand how great they are.

In addition to Newt's direction, there is another direction, which is to abandon the inherent carrier and directly regard the ubiquitous space as a carrier. Relying on the existing space, a new space that cannot be constant is opened up on the spot, and then the people or things around are dragged into this space according to one's own wishes.

This direction is somewhat similar to the mirror space magic of Marvel's Kamar-Taj, but the intensity is much different, and in terms of development potential, it is not as good as the direction of Newt's box.

However, if the transformation technique is strong enough, it is still possible to perform operations similar to the transformation of the heaven and earth in the mirror space to a certain extent.

"I already know Transfiguration, and I'm also learning the Weather Charm. Add in the Traceless Extension Charm, and I can say that I have a promising future."

The idea of ​​having a dream love box or love house of his own made Locke motivated. In order to learn the Traceless Stretching Spell as soon as possible, he devoted all his time except visualization to it.

Time passed quickly, and it was noon of the next day in the blink of an eye. Locke, who had been practicing all night, looked at the cell that he had successfully enlarged more than twenty times, and a satisfied smile appeared on his face.

Like other ordinary magic, due to his powerful basic stats, the effect of the Traceless Extension Spell he casts far exceeds that of ordinary wizards.

"That's enough for now."

After nearly twenty-four hours of study, Locke was able to release the first stage of the Traceless Stretching Spell without a wand and silently, which was enough for Locke now.

"Take a break. It will be time to get food soon. After dinner, go up again. This time, ask about the levitation spell. If no one can say anything good, ask Fiendfyre."

Originally Locke wanted to ask about Apparition, but then he gave up considering that Apparition might fail.

Volume 1: Chapter 18 The Road is Narrow

After removing the Untraceable Extension Charm cast on the cell and merging the two parts of the cell into one, Locke cast the Untraceable Extension Charm again, expanding the entire cell several times.

Because he couldn't keep the Traceless Stretching Spell constant for the time being, Locke added a huge amount of magic power at once to prevent himself from forgetting to maintain it if he got busy later.

As for why it was only enlarged several times instead of dozens of times, the reason is very simple. First, it would be unnecessary if it was too big. Second, if it was too big, it would be difficult to deform it later.

"Speaking of which, can this be considered a multiple transformation? After all, I am transforming again after completing the Traceless Stretching Spell."

The cell that had become larger and taller was enlarged by Locke in the same proportion as before, turning it into a large room that looked extremely comfortable at first glance, and the starry sky ceiling was still maintained.

Now this cell has initially reached the standard of Locke's dream house. Looking at such a room, Locke smiled with satisfaction.

At this moment, Locke suddenly sensed a familiar magical fluctuation at the cell door. He turned around and saw a dinner plate appear at the door.

Without Locke making any movement, the dinner plate on the ground outside the cell door flew lightly into the air, passed over the automatically opened door curtain, and after crossing a distance, floated gently on the dining table that had just appeared in front of Locke.

This is a bit like the operation of controlling objects with telekinesis, which is one of the results of Locke's research on the analysis of the levitation spell during this period. It is not very magical, but just a little advanced trick that allows Locke to issue different levitation commands and operations to multiple objects at the same time.

The original levitation spell could only perform a single command, that is, during the casting of this magic, no matter how many objects were floated up, they could only be controlled according to a fixed command, such as rising, following, or moving horizontally.

Now, after studying the levitation spell and combining it with his own strength, Locke can complicate his beliefs and micro-manipulate the output of magic power. He can also control different objects with a variety of different commands and even modify the control commands halfway.

This technique can be seen as an advanced use of the levitation spell. In essence, it is still within the inherent framework of the levitation spell. Therefore, Locke can only be regarded as a master in using the levitation spell. As for analyzing the operating principles of the levitation spell, Locke still has a long way to go.

Locke knows more than one advanced technique like this. He also has another one that is combined with Transfiguration, which is the water dungeon used by Dumbledore in the original book.

The essence of that magic is the combination of super high Transfiguration and super high Levitation Spell. The Levitation Spell is used to control the water, and then Transfiguration is used to change the shape of the water. At the same time, the control instructions of the Levitation Spell are constantly changed. The two are combined to produce powerful effects while making various responses.

Locke can now easily build the water dungeon, and thanks to his broad cognition and knowledge, he can even do it better than Dumbledore.

In Locke's opinion, Dumbledore in the movie suffered from his lack of education. Of course, the scientific culture and flexible thinking he was talking about here were not magical knowledge.

There is no doubt that Dumbledore is knowledgeable, but this knowledge has also brought him a certain degree of rigidity in thinking, making him habitually think with existing magical thinking.

Let's take the simplest operation as an example. If it is Locke who uses the water prison, then after trapping the enemy in it, he will definitely apply the deformation again as soon as possible and perform micro-manipulation inside the water prison. While restricting the enemy's hands, feet and head, he will control the deformed water flow to stretch his palms and make him lose his wand.