In the process of learning with Nia, Xia Duo is also reorganizing his knowledge system, as the so-called "learning from the past", in the process, his understanding of color resistance magic is becoming more and more profound.

And today, after completing the update of the status of Niya's knowledge star map, Xia Duo once again came up with an idea that had been in the past a long time ago-

"What are the rules of magic?"

Shado knows many theories of magic at the level of principle, such as elemental-material essence, spell construction (phenomena exist), magic web nature, magic immutability, and so on.

But most of these are laws summarized from phenomena, and if a special case appears one day, then the law is broken, and new ones need to be found.

Others, more specific, based on these existing laws, draw conclusions that are so clear and almost impossible to overturn are what Chado called "laws."

For example, the law of single-string transformation of the strings of the magic web, the law of spell construction (the law of element expression) in the plane, and so on, almost every spell element can be called a law.

And going deeper from the law, it is a specific spell, Xia Duo believes that magic and science are essentially the same thing, but the biggest difference in the form of expression is here.

The formulas used to express laws and theorems on Earth themselves do not have any ability to interfere with reality in a practical sense, but in this magical world, laws and theorems themselves can directly interfere with reality.

"The Legend of the Fairy Tree"

So as we continue to go deeper, is there a summary law in a specific direction?

The answer is yes.

On Earth, this may be called the "XX equation", such as the famous Maxwell's equation; And in the wizarding world, what are the specific manifestations of equations?

Almost all of the theories below the principles of the wizarding world have their spell expressions, but what about equations?

Is there a special spell that can show the full state of a certain law, and its manifestation is closer to the imaginary origin of magic?

Shado believed that there was, but in the past he couldn't see the full picture of magic - although he couldn't now, but at least he realized that it was possible.

Through this opportunity to learn with Nia, Xia Duo reorganized all his knowledge system, and became more convinced of the existence of equation spells.

And I have a certain grasp of the derivation process of one of the equations!

……

After arranging Nia's study plan and test questions for the next stage, Xia Duo retreated into the subconscious world of his own self and deduced pure theory.

In fact, if it weren't for the fact that the equation he chose was already coming out, he would not have been able to make purely theoretical deductions in consciousness without the need for various experiments in reality.

The plastic energy equation was the first thing that Xia Duo came up with.

First of all, it is basic enough, or simple enough, to only involve the transformation of basic elements and energy;

In addition, the Plastic Energy Spell is also a type of spell that has been studied more by the Chroma Mage, and it belongs to the branch of creation spells, and there are many related theories and data (spells), so there is no need to design new experiments to supplement the data.

Other spells are different, either because the categories are too large and the data accumulation is not enough, or there is no way to find a more specific classification.

In fact, Shado preferred to obtain the equation spell of the state of matter, which meant that he was able to perform more subtle and even subtle manipulations on matter.

It's just that this category is too big, and the so-called state of matter, does the size count? Does weight count? Does composition count?

Mixed up with various variables, with the current self-perception of Shado, he does not think that he can complete the derivation of the equation of state of matter.

It's better to retreat and derive the equation spell of "plastic energy", which seems to be of little use, but may not be very useful in fact.

……

The Tower of Time, the top floor of the study.

Next to the projection window, Nia worked hard to write, and from time to time cast spells to calculate, while Xia Duo seemed to be asleep, completely unaware of the movement of the unexpected world.

I don't know how long it took, Niya suddenly stopped the pen in her hand, reached out and shook it twice in front of Xia Duo, and saw that Xia Duo didn't react, she breathed a long sigh of relief.

Throwing the pen away, leaning heavily on the back of the chair, he was about to adjust the content displayed in the projection window to relax, but he didn't want to the next moment, Xia Duo suddenly opened his eyes.

Looking at each other, Niya smiled awkwardly, moved her body slightly and left the back of the chair, picked up the pen and prepared to continue answering the question, but Xia Duo smiled slightly, took the initiative to change the content of the projection window, and said:

"Take a break! It's time to take a break from working on the topic for so long. ”

"Oh, good."

Niya hurriedly put down her pen, moved the chair to Xia Duo's side, and after sitting down next to Xia Duo, she glanced at the development scene of the Great Xia leaders outside the window, and then asked:

"How many more papers do I have?"

Although Nia does not deny that she has made rapid progress during this time, she has never studied so intensively in the past, and even after trying to adapt for a while, she still feels a lot of pressure.

The reason why she asks this now is not that she wants to back down, but that she wants to have a clearer understanding of the next study plan.

To this, Xia Duo's answer was-

"There is no end to learning, and the test papers are incomplete, but there is still an end to this phased learning, according to your current efficiency and progress, you will almost have to do so many test papers before, and it can be over."

"Ahh

Niya raised her voice and looked at Xia Duo pitifully, but after all, she didn't say anything like giving up, but asked, "Then will you always be with me?" ”

"Of course, just like now, I'll always be with you."

Xia Duo's words gave Niya a lot of encouragement, and now that the goal was visible and tangible, she was full of energy again.

After sitting next to Xia Duo for a while, Nia moved her chair back, picked up her pen again, and began to answer the questions seriously.

Seeing this, Xia Duo adjusted the projection window to the blue sky, and then used the projection window's exploration field to cast a spell to extend his own perception field, and in an instant, his perspective was divided into two-

One is still in the Tower of Time, opposite is Niya, who is seriously doing the question; The other was already high in the sky, with the bright red sun above his head, and the Great Xia Lords below him who were still trying to develop.

With the help of the Perception Field Casting Spell, Xia Duo is no stranger, but this time the spell he wants to try to cast is a little special, and after the Perception Field turns around above the territory, he quickly jumps towards the south.

……

At the foot of Wolf God Mountain.

After many years, there are still traces of the orc tribe's life here, but most of the stone buildings have been hidden by crazy trees and vines, which looks a little desolate.

If he hadn't known about it in advance, Xia Duo would have thought that this was some ancient civilization relic.

He sighed to himself, and then the spell began.