afternoon.

When Jiang Xilin drove to the tavern at No. 11 Shiban Road, Baishi District, he saw Laird at the door of the Kingdom Post Office.

This rough man, who was over 1.9 meters tall, squatted at the door of the Kingdom Post Office with a sad look on his face.

He knew that Jiang Xilin would come to the post office every once in a while, so after searching all over the world but unable to find Jiang Xilin, he decided to squat at the door of the Kingdom Post Office.

Of course, Laird is not a brainless person. He cannot squat at the door of the Kingdom Post Office all day and night and do nothing. After all, he still has his own ideals.

We cannot stand still just because Master Black Crow is gone.

Therefore, he would come here every morning or afternoon to squat for an hour or two. At other times, he would ask Phyllis, the front desk lady at the Kingdom Post Office, to say to him when he saw Master Black Crow: Laird

Been looking for him.

Of course, Ms. Phyllis didn't know which black crow was, but after Laird's dancing description.

Phyllis suddenly realized: Isn't that Jiang Xilin?

"Okay, no problem. I'll tell him next time he comes to send something."

Phyllis is a warm-hearted and good lady. It would be better if she were not the mother of two children.

…

The horse's hooves made a clicking sound on the ground, and Jiang Xilin's body staggered along with the carriage as he passed the door of the Kingdom Post Office.

Soon, Jiang Xilin passed the tavern at No. 11 Shiban Road, Baishi District, and arrived at the secret research base of the Bright Arcana School.

In the changing room, he put on a white coat and wrapped his head in layers of white cloth, leaving only a pair of eyes exposed.

This is the "uniform" of a researcher of the Bright Arcane School. Jiangxi Lin, who is now a senior member of the Bright Arcane School and a member of the spiritual power research team of the Blasphemous Project, was naturally issued a uniform.

After changing clothes, Jiang Xilin came to the research room of the research team.

It was already afternoon, and most researchers had either completed their tasks for the day, were reading in the library, or doing experiments.

Therefore, there are not many people in the research room.

Jiang Xilin found an empty table, sat down, took out his research materials, and started writing and drawing at his desk.

He is relatively free here. These days, Peter Monforson has only arranged a few simple small tasks for him.

Part of the reason is that most people here study arcane magic formulas. For Jiang Xilin, who specializes in arcane magic formations, he doesn't know how to arrange research tasks for him.

Of course, the deeper reason is that he always believed that there was some kind of relationship between Jiangxi Lin and the gentleman, and he did not dare to assign too many tasks to him.

And this will naturally cause dissatisfaction among some people.

Tiger is the most dissatisfied person with Jiangxi Lin, no one else.

He just couldn't stand the idea of ​​Jiang Xilin coming here whenever he wanted, and reading books on mechanics when he came, and not doing anything serious.

But he didn't have the courage to trouble Jiangxi Lin alone, so...

He looked at Jiang Xilin's serious figure from behind, and winked at the petite young man Xirui sitting opposite him.

Xirui looked at him with a troubled face and shook her head gently: No more.

Tiger glared in displeasure and deliberately spoke loudly,

"Hey, Ciri, I remember last time you said you had some questions about arcane magic circles that you wanted to ask Black Crow for help. Now while Black Crow is here, you should quickly ask him for help!"

He could only blatantly bully a weak young man like Ciri.

The petite Xi Rui’s small round eyes were filled with grievances.

Jiang Xilin naturally heard Tiger's loud words.

However, he still buried his head, thinking seriously about how to make the lightning field conductive material rotor rotate.

"That, that, Mr. Black Crow."

Jiang Xilin was deep in thought when the young Xirui's weak voice suddenly sounded in his ears,

"I, I have a question about arcane magic formations, and I want to ask you for advice."

"sit."

Jiang Xilin put down the dip pen in his hand and pointed to the stool next to him. He exuded a boss temperament all over his body, which impressed the young boy.

Xirui sat down anxiously, with her butt half pulled up and pressed against the seat, as if she was ready to get up and run away at any time.

"What is the problem?"

"That's right, it's about this magic circle that can retain mental power..."

Xirui seemed to be stammering when he spoke. He hurriedly spread out a schematic diagram of the magic circle.

"It, how does it work?"

"Let me ask you first, in your opinion, what is spiritual power?"

Jiangxi Lin could have refused directly, or could have sent him an answer directly, but he didn't.

He chose to be persuasive.

"Spiritual power? I, I can't tell. I just feel that mental power is like light. When there is a light source, light can be emitted continuously. Once the light source disappears, the light will also disappear. Spiritual power will also disappear."

The same goes for power. As long as a person is alive, spiritual power will always exist, but once a person dies, spiritual power will disappear."

Jiangxi Lin is quite satisfied with this answer.

Although this answer was a bit long and convoluted, he could still feel that the little round-eyed boy had thought about it seriously.

"Then have you ever thought about how to retain light when there is no light source?"

"I have thought about using mirrors to make a box and sealing the light inside the box, so that it can always be reflected inside without disappearing."

"Then have you observed that they keep reflecting and never disappear?"

"Well...I don't have one. I don't know how to observe the situation inside the mirror box, because as soon as my eyes observe the light, the light disappears."

"Your idea is very good."

Jiang Xilin praised him, and his own interest was completely aroused.

He turned slightly to the side and came closer.

The petite boy with small round eyes moved to the side like a timid quail, not daring to look at Jiang Xilin.

Jiang Xilin curled his lips, not knowing whether he was afraid of himself or disliked him, or both.

Without taking it too seriously, Jiang Xilin continued,

"Light is retained through continuous reflection by mirrors, but have you ever thought about what the essence of light is? It is a kind of energy."

He didn't intend to talk about wave-particle duality. It was too complicated. He himself didn't quite understand the grating diffraction experiment and Young's double-slit interference experiment.

"So, the problem of retaining light can be equivalently converted into the problem of retaining energy."

"Did you know that there is a kind of fluorescent bacteria that can absorb weak light from the outside and glow, and can still glow for a long time after the bacterial dust leaves the bacterial body?"

Jiangxi Lin was talking eloquently, and Xirui opened her small round eyes and nodded from time to time.

"So, is there such a thing that can absorb spiritual power and continuously release it when needed in the future?"

After Jiang Xilin finished speaking, he stopped continuing and left some time for Xirui to digest.

However, what he didn't expect was that a voice suddenly sounded above his head.

"So, the basic principle of this magic circle is to absorb and store mental power, and then release it when there is no source of mental power."
Chapter completed!