Opal, a silica gel gemstone, contains 5-10% moisture.

At night, in a standard suite bedroom in the dormitory building, Gu Jun was looking at a crystal colorful opal in his hand.

Opal has two kinds of color-changing and non-coloring, this one is color-changing, oval, 4.5cm long, 2.1cm wide, and the origin is the western part of Australia. This is something he specifically instructed the people in the Recreation Department to pay attention to when buying it, because he thinks that "Wharton" still has another meaning to the hint.

Since opal is amorphous, some structures can change color or even crack due to lack of moisture, but if the structure is stable, there will be no change.

This one was full of water, brightly colored, and round, and he thought that this would probably meet the requirements of the Codex Nakert.

"Hmm." Gu Jun took the gem and sat down at the work table that was placed in the middle of the bedroom, and the table was full of some carving tools, carving knives, electric drills, drill bits, and sharpening needles...... It's like a treasure box for orthopedic surgery.

And in the corners, he installed his own camera, which would record what happened to him.

In fact, Gu Jun didn't know what he was going to do, only that he was going to carve an old seal on this opal.

But how to carve it, and how it could be useful, he didn't have a clue.

It was a technique for the use of old seals recorded in the Codex Nackert, which, unlike the large old seal stone, was used to "monitor reason."

Gu Jun understood it this way, because the content of the text above was too obscure, and he was only half-guessing and half-ignorant.

However, "rational, rational, rational", he could see how much the civilization that created these technologies took this seriously. Reason is their highest priority, and knowledge and science are the only way they are willing to understand the universe.

So this tool for monitoring rationality, to use an analogy, might be like a human health watch – it's okay to see how many steps you take.

"But this kind of people's gadgets." Gu Jun pondered, "If it can really be made, then it can solve our big problem." ”

The lines to be carved are clearly drawn on the Codex Nacht, but each one seems to contain the most superb mathematical laws, and the strange precision even makes him feel a kind of insignificance when looking up at the starry sky, which is by no means a science that human beings can understand at this stage.

It's like primitive man didn't understand what calculus was. Although he doesn't understand very well, high math always gives him a headache.

"Try it." Gu Jun took a deep breath and picked up a carving knife, but he felt quite comfortable using it for the first time, and his calm hand could also work here.

He had already instructed Cai Zixuan, who continued to sleep with him, to never let anyone come in and disturb him until he went out.

Gu Jun closed his eyes, opened the "Nackert Codex" in his mind, turned to the number of pages about the manufacture of "old seal ornaments", looked at those unimaginable lines, indescribable patterns, and how to combine spiritual power with opal, dispatch the water in the stone, and reshape the structure......

Gradually, his mental power focused on, and he gradually had a little headache.

"Uh-huh......"

It was as if a lot of dreams had come flooding in, replacing the darkness.

Gu Jun looked around and found that he had once again stopped in the grand vaulted library, but it was not the position of the last time, and there was no black shadow from the last time.

The rows of huge bookshelves were far away, and he stood beside a wall, shining in a faint light, and saw that the huge stone walls were full of carved lines, like scratches made by constant friction of frosted paper, dense and mottled, many times more complicated than those on the Codex Nackert.

"These are...... What is the technical principle of monitoring stones......"

The more Gu Jun looked, the more he was shocked by a delicate and subtle force, and every straight line and curve on the wall seemed to be able to outline his soul.

He looked at the carved lines, and his mind quickly plunged into them, and he didn't feel any discomfort that he lost track of time......

I don't know how long it took, when he slowly stretched out his right hand to touch the wall.

Suddenly, this illusion receded, and Gu Jun's eyes widened suddenly, and the surroundings were no longer a grand library, but still a spacious bedroom in the dormitory.

It's just that the sky outside the window has become brighter, and the clock shows that it is past six o'clock in the morning, and the night has passed.

"Ah......h The two arms, in particular, were so sore that they felt like they were about to break......

What made his third-level calm hand like this?

Gu Jun's heart jumped suddenly, and he looked down at the work table, did I carve something?

There were a lot of bits and pieces of stone on the table, and he still held the carving knife in his right hand and the opal in his left hand.

It is still oval in shape and has not undergone major changes, but it has been engraved with an old seal on the front. It has not yet been polished, but it is like a natural thing, everything is just right, and the horizontal branches of the old seal are even connected with its different color portraits.

"This ......" Gu Jun frowned, and found that the tools such as the electric drill had not changed, did he use this carving knife all night.

He mustered up the strength to stand up, and his feet were tired enough, but he walked to the computer and turned on the surveillance video to watch it. He saw that after he began to sense the Codex Nacht, his hands quickly moved, and he carved the opal with a knife......

He looked at the normal speed for a while, then turned it up to speed, and then carved it all night.

After changing the camera to look at different angles, Gu Jun found that his eyes were always closed, which was like an activity in a sleepwalking state.

"It looks like I just carved an old stamp. In fact, this is also a kind of spiritual carving, and the internal structure of this opal is already different. ”

The question is, does this little old seal stone have any effect?

According to his understanding of the Codex Nakert, Gu Jun tweaked with the stone for a while, and saw that its brilliance changed, and the pattern of the old seal flickered again...... He couldn't help laughing out loud with joy, and he clung to the stone, and it was done! It should become, a life-saving medicine.

He immediately went to get his mobile phone and called Tongye, and it was his turn to wake up others early in the morning.

"Hello?" But Tongye picked it up quickly, and he didn't seem to be sleeping, and this old guy was busy enough this week, and he was haggard for a few laps.

"Tongye." Gu Jun said with a smile, "A technique passed on to me by Great Elder Attar, I finally figured it out, and our health watch came out. ”

"What health watch?" Tongye was stunned when he heard this, "Attar will still do this?" ”

"The health watch is a metaphor, but it is actually a monitoring and verification equipment for the rational condition of the spell practitioner."

Said the robot Vali

The first update, ask for a monthly pass duck, ask for a monthly pass duck! Thank you for hitting 10,000 gold coins,666,Awesome! There are also book friends who 20190801081107715 hit 500 gold coins, and book friends 20190619211041380 hit 100 gold coins.