Zhu Changyang looked at the large piles of copper, iron and other metals in front of him and couldn't help but shed tears of emotion.

Sister Yan is quite interesting.

In fact, he could see that Dong Yaoyan himself had no intention of hurting him, including this restriction, which seemed to imprison him, but it was not to help him avoid the harm of the soul-locking nail.

Dong Yaoyan's madness is more driven by the will of Demon Lord Dong Yao. After all, it comes from the suppression of the bloodline of his ancestors.

I don't know what she planned.

Dong Yaoyan, the bearded group of people left the cave immediately, leaving a few demon cultivators to guard the entrance of the cave.

A few people were quite serious at first, and would look inside every once in a while to guard against Zhu Changyang's small tricks.

And what Zhu Changyang did really opened their eyes.

Zhu Changyang sat down on the ground with excitement on his face, took out a large iron nail wrapped with copper wire, and then... picked up the tatters on the spot?

guard:?

They originally thought that Dong Yaoyan threw away this pile of scrap metal because he was angry with the demon and deliberately treated him in his own way, in order to mock Zhu Changyang.

It turns out that this person really likes rags??

The guard looked back and forth three times to confirm that Zhu Changyang was picking up rags seriously, and even roughly classified the rags with great care.

The whole set of movements is smooth and smooth, with an attitude of nothing but familiarity. I am definitely not the first to do this job.

The guards asked themselves, did they think too highly of this man?

After watching this for several more times, they finally lost interest in Zhu Changyang completely.

Even though I tried to pick up rags, I couldn't find any flowers, and there was a restriction from the Demon Lord there, so I didn't bother to look at it carefully.

Zhu Changyang was unaware of the guard's change in mentality. He was concentrating on recycling scrap metal.

Just like in the Gupeng Secret Realm, most metals are attracted by electromagnets, while other materials that cannot be attracted by magnets, such as bronze, jade, and heavy stones, are picked up manually.

It's a pity that without the help of Rusty Sword, the efficiency of my own operation is always lower.

While Zhu Changyang manually operated the electromagnet, he missed his multifunctional good friend Xiu Jian every day.

Since the secret realm opened, the rusty sword has lost its whereabouts.

Although Jun Su didn't say it explicitly, he revealed that he would be able to find the rusty sword when he finished his retreat.

In fact, Zhu Changyang has already made a guess in his mind. The origin of the rusty sword may be very complicated. I don't know where it is now. It would be great if I could find some of it...

Just as he was sighing to himself, he suddenly heard a "clang" sound, and a long sword covered with rust slipped out from the pile of iron swords he had just sucked up, and fell to the ground.

Zhu Changyang didn't pay attention, thinking that it was made of special material, so he reached out to pick it up, but when he lowered his head and looked at it, he saw that it was a meal in his hand.

Wait, Rusty Sword, why are you here?

The long sword that fell to the ground looked ordinary. The material of the sword body was very similar to fine iron. The hilt was simple and unsophisticated. There were patches of gray-brown stains on the sword body. It looked like a rusty sword.

Iron swords, however, are not attracted by electromagnets.

The most important thing is that he is so familiar with this sword that he can even recognize it when it turns to ashes.

Zhu Changyang: "..."

He never expected that his good friend Xiujian would suddenly come online like this. Isn't this way of returning a bit random?

But then again, Gu Peng's sword intent was also mixed in a pile of junk.

All the Changyangs were a little doubtful that the Rusty Sword might have been inspired by the place where swords were hidden in the Gupeng Secret Realm, so they also created such a method for hiding swords.

Live broadcast room:

[Good guy, I suddenly found Jun Su’s sword, but doesn’t this plot seem a bit familiar? 】

[Laughing to death, I once again relied on the plow shovel to scoop out important props. 】

[That's still a little different. Last time, I shoveled it by myself. This time, I forced the Demon Lord to shovel it out. Who wouldn't say Yanjie is miserable?]

[Since Changyang arrived in Piaomiao Continent, the boss here has been in dire straits...]

Zhu Changyang was ecstatic in his heart. He glanced in the direction of the cave entrance with his peripheral vision and saw that the guards were very lax and did not pay attention at all.

He raised his voice carefully and made a gesture towards the rusty sword.

If not to say that Sister Yan still left a ray of hope for him, she didn't even block his cultivation.

However, after executing the technique, the rusty sword showed no reaction at all, let alone any fluctuation in spiritual power.

Zhu Changyang was a little strange. He picked up the rusty sword and took a closer look. He found that the rust on the rusty sword was deeper than before. The sword was dim. The cold light of the night pearl shone on the sword, but it seemed to have been swallowed up. There was no trace of rust at all.

Reflective.

Zhu Changyang's heart sank. He had read about this situation in the cultivation textbook he bought before. It was likely that the magic weapon consumed too much mana, fell into a deep sleep, or even ran out of energy and was destroyed.

No wonder Jun Su has never been able to find it.

From this point of view, when the rusty sword appeared in the pile of rotten swords, it was probably because it was like hiding in the woods, or because it simply ran out of mana when entering the illusion, and fell somewhere in the Kudu River, where it was broken with the remaining soldiers.

Just mixed together.

...What a shameless sword.

While the leaders were speechless, they couldn't help but feel worried for Jun Sue. This sword was very important to Jun Sue. If he fell asleep like this, he didn't know what impact it would have on Jun Sue.

When he thought of Jun Su, an indescribable feeling arose in his heart, and he was a little depressed.

I wonder if Jun Su's anger has dissipated and can he be found?

As soon as this thought flashed through his mind, Zhu Changyang suddenly came to his senses, no, we have traveled through time for so long, we can't count on Jun Su every time we encounter trouble.

Modern Chinese people still need to have subjective initiative.

He suppressed his sadness, touched the gray-brown patches on the rusty sword, and felt a slight movement in his heart.

Previously, he jokingly suggested to Jun Su that when he found the rusty sword, he would remove the rust from it, although these things were probably not rusty.

But there is no better way now anyway, so it doesn’t hurt to give it a try.

Zhu Changyang remembered hearing the sound of dripping water when he first woke up, so he looked around and found the source of the sound in the east.

It turned out that there was a small crack in the rock wall, and water flowed out, forming a small pool about one meter wide at the bottom.

The temperature in the cave is relatively constant, it is cool in summer and warm in winter, so the water pool does not freeze, and the water droplets dripping from the top of the rock wall make a "tick-tick" sound.

Zhu Changyang took a look at the width and depth of the pool. It was a little big, but acceptable, and he started to operate.

The first step is to prepare sodium bicarbonate, or baking soda, which is simple to make and can be made with sugar, salt and flour.

He had it ready-made in his workshop, and he didn't need a lot of it, so he took out a bag from his pocket and poured it into the water pool to dissolve it and make an electrolyte solution.

Then he lit a spiritual fire, used the wealth Sister Yan left to him to make a piece of steel and inserted it into the water as a positive electrode.

The power source is a spiritual battery. The negative electrode is connected to the rust-free part of the rusty sword, and the positive electrode is connected to the piece of steel. A simple electrolytic rust removal device is ready.

Zhu Changyang hid the spiritual power battery behind a rock, turned on the power, and began to electrolyte and remove rust.

The pool made a soft "gurgling" sound, and he took out the electric horn again, recorded a sound of ripping through rags, and hid it behind Sister Yan's gift.

The sound of water was masked by the sound of metal clashing from the loudspeaker. The guard at the cave entrance thought he was still sorting garbage and didn't even bother to take a second look.

It will take some time to electrolytically remove rust. Zhu Changyang then used his spiritual consciousness to open the workshop and prepare to look for any tools that could be used to escape.

After entering the backstage, I found that the live broadcast room was reopened, so I opened the barrage and took a look:

[Sister Yan has given so many materials, but they are still in a cave. Wouldn’t it be appropriate for Changyang not to build a mecha? 】

[The mecha is a bit exaggerated, blindly guessing that TNT will blow up the cave.]

【I think cannons are also good.】

Zhu Changyang: "..."

Such a wild idea, they think it is a science fiction channel.

However, netizens really think highly of him. If he could play mecha, he would have directly joined the national team instead of going to Pujiang to be an anchor.

Explosives, guns, and cannons are barely manageable, but they are okay against ordinary monks, but against Dong Yaoyan's level.

Don't even think about the boss.

These powerful cultivators are divided into mountains. When Sister Yan attacked Hu Daogui, she directly smashed the black mountain on the cliff tomb. Ordinary guns and artillery really couldn't beat them.

After much deliberation, high-voltage electricity is simple and easy to use.

The only problem is that the generator was left in the Demon Palace to power the lights in the workshop, and the generator was too conspicuous. Sister Yan had seen his group of Denyuxu sect before, so she probably wasn't that stupid.

Zhu Changyang was thinking about it while looking through his inventory, and finally his eyes fell on a small white jade.

Kunshan tablet jade.

Kunshan piece of jade has extremely rich spiritual power, comparable to a small spiritual vein. As early as when he first got this piece of jade, he tried to refine it into a spiritual power battery.

It's just that the cultivation level at that time was too low to refine such a treasure. Later, with the advent of oil and generators, the need for spiritual power batteries decreased, so the matter was forgotten.

You can give it a try now.

As soon as Zhu Changyang's thoughts changed, he took out the Kunshan jade, lit the spiritual fire, and began to refine the Kunshan jade.
To be continued...