Something like glass.

Fragile and beautiful.

In the earliest days, it was used as an industrial material.

Later, it was to make telescopes.

After that, more and more glass products were born under the wisdom of people.

With the development of technology, the production technology of glass has naturally changed.

Compared to the technology in my world, it turns into glass by burning sand.

In the later period, varieties of glass appeared with various components and different functions.

It took Fan Ming a whole month to find the ore that could be fused with glass.

Although, the final result was a little different from what they expected.

Because, they made a transparent sword.

If they hadn't held it in their hands, they wouldn't have even been able to feel the sword's presence.

After their repeated experiments, they used up an unknown amount of glass.

Finally, it was discovered that some materials can be fused with glass to form stronger and stronger glass.

In addition to changing the shape, you can even do to change the light.

Combined with this situation, they said that the newly fused glass cloth was placed on the outer layer, and after careful refining, they made a flying sword that could be invisible.

But...... What's the use of that?

Everyone looked at Fan Ming's empty hand, but he was holding the flying sword, and fell into deep thought.

"So far, there is progress. ”

Fan Ming made a summary.

Everyone nodded in agreement.

Of course there is progress.

I don't want to think about how much it cost to refine this treasure.

The second time they sent someone to dig up the glass, it seemed that the endless door could not stand it.

Let you take it once, forget it, and you actually came.

Insatiable.

So, the Endless Gate put up a sign in that area and began to sell glass.

It was also at that time that they learned the name of this new material.

And the price at which Endless Gate is sold, as if knowing their bottom line, happens to be stuck in a position that is not up or down.

The glass consumed in this month alone exceeded hundreds of peerless spirit stones.

This price makes them a little uncomfortable.

The newly refined flying sword is just a top-grade magic weapon.

At most, you can only sell three superb spirit stones, and you can't have more.

But that's just the glass they're using.

Coupled with other precious ore materials, this is an expense that can make Heavenly Master Dao feel a little uncomfortable.

If they can't come up with anything useful, I'm afraid they will be blamed by the sect master.

As for now.

Although it is a little different from what he and others expected, but now, let's experiment with the power of this flying sword.

Placing the flying sword on his lap, Fan Ming sat cross-legged and began to refine the flying sword.

The flying sword is refined very quickly.

Unlike when it had just come out, Fan Ming could now feel the existence of this flying sword.

At this moment, they also realized the extraordinary features of this glass.

The material, fused with glass, seems to be able to isolate the detection of the divine sense.

On the sword, there will not be the slightest fluctuation of spiritual power.

That is, it is an invisible sword.

Walking out of the refining room, Fan Ming did not give this matter to others.

Holding the sword trick in his hand, he controlled the flying sword to shuttle through the sect at a high speed.

He wants to see if this flying sword can be discovered.

The transparent flying sword raged within the Heavenly Master Dao.

Fan Ming's cultivation was at the peak of the Mahayana period, and there were signs of breaking through to the tribulation period in the near future.

is a cultivator, and it can be regarded as the top five existence in the sect.

In fact, if it weren't for the Tribulation Period Monk, Fan Ming wouldn't have been able to easily find out what Fan Ming had done.

Even the other elders in the sect didn't say anything when they sensed Fan Ming's divine sense aura.

Elder Refining, it's normal to do something once in a while.

As a result, Fan Ming's sword flew around the sect so unimpeded.

Crossing the Lian Wu Square, passing through the disciples' residences, the courtyards of the elders across the country, and flying to the main hall of the sect.

It was the place where the Sect Master usually stayed.

Although Fan Ming didn't know, whether the sect master was in the sect now.

But the sect master is not here, and the Supreme Elder must be there.

Controlling the flying sword and walking around the main hall of the sect a few times, there was no response.

Under normal circumstances, if a flying sword flew onto the main hall of the sect, it would have been treated as an enemy attack long ago.

But Fan Ming was not warned.

Could it be that the magic weapon they refined was really so magical?

Or is this glass really a good thing, and even the monks of the Tribulation Period can't find it?

If that's the case, the price at which Endless Gate sells is really too low.

Of course, there is glass in a radius of 100 miles, and in terms of quantity, it is indeed not low.

But if the effect is really so amazing, then the Endless Gate is really cheap.

As long as it is made of glass, it can be hidden from everyone.

If the two armies are fighting, tens of thousands of invisible flying swords can easily take off the enemy's head thousands of miles away, and you don't even know how you died.

However, to do experiments, you need to have a strong spirit of curiosity.

Fan Ming didn't believe in evil, so he lowered the height of the flying sword and went in and out at the door of the main hall of the sect.

Control the speed, there are fast and slow, nine shallow and one deep, three on the right and three on the left, swinging like an eel, and moving like a leech.

Fan Ming was frantically tentative on the verge of being discovered.

It wasn't until the flying sword went around inside the main hall of the sect that Fan Ming wanted to leave something behind, and he suddenly felt bored.

Control the flying sword and fly back to his hand.

Beside Fan Ming, those eighth-grade refiners were also staring nervously at his movements.

It wasn't until they saw Fan Ming raise his right hand and make a gesture to retract the flying sword, and then he held his right hand virtually, showing the posture of holding the sword, that they were sure that the flying sword was back.

"Elder Fan, how is it?"

The flying sword was controlled by Fan Ming, and others couldn't sense it at all.

"I took control of the flying sword and went to the main hall of the sect. ”

After Fan Ming said this, he paused.

"It's worthy of Elder Fan, he actually dares to let the flying sword go to the sect's main hall to walk around, has the sect master found out?"

slapped a sycophant who was not light or heavy, and immediately asked.

"It doesn't seem to have been noticed, I have been testing at the main hall of the sect for a long time, and the flying sword has not been shot down. ”

Fan Ming shook his head.

Everyone immediately looked happy.

Since it has not been discovered, it does not mean that the flying sword they have researched can be concealed even by the monks of the Tribulation Period.

This is to strengthen the flying sword to the spirit weapon level, and then let the sect master control the flying sword.

Who in the world can escape such an assassination.

When the time comes, come and make an example of the monkeys, in this world, isn't it under the control of their Heavenly Master Dao.

Just as everyone was about to cheer, a disciple of the Heavenly Master Dao came from a distance.

"Elders, the Sect Master asked me to deliver the message. ”

Fan Ming and the others knew who was coming, nodded and let him continue.

"The sect master said: When you ask Elder Fan to do the experiment, don't be so obscene. ”

After saying that, the disciple bowed to Fan Ming and immediately fled from here.

Fan Ming:(((;???;)))