Making foreign gold is no longer a difficult task for Ye Yan.

He expertly prepares the ingredients and then begins to make them.

The Thunder Defense Tower was what Ye Yan wanted to put in Liangcheng as a line of defense, of course it couldn't be sloppy.

Therefore, to make the different gold, Ye Yan wants to make the best quality of the different gold he can make at the moment.

There were not many third-level magic crystals left, so Ye Yan didn't think about it.

However, there is still a lot of blood left in the third-level alien beasts killed in the Broken Valley before, and there are still a lot of second-level magic crystals left.

This is already the best material Ye Yan can come up with, and it is also the best exotic gold device he can make at present.

If you want to further upgrade the gold, you need to use a large number of third-level magic crystals.

However, it is impossible at present, the third-level magic crystal might as well be used for traders, even if everyone in Liangcheng becomes a three-star evolutionary, Liangcheng's strength will also increase a lot as a whole.

Melt the iron and pour it into a super-large container.

Then put in a large number of third-level alien beasts' blood and second-level magic crystals.

The second-level magic crystal Ye Yan released at least more than five hundred.

Slowly, without any accidents, the gold gradually took shape.

The quality is even better than the last time I made the exometal!

Not only because Ye Yan was willing to use the materials, but also because Ye Yan's strength increased again, and the things he made naturally became a lot stronger.

Then, there was the new Thunder Defense Tower for Ye Yan.

Directly use the alien gold and urge the spiritual power to start forging the prototype of the defense tower......

The first Thunder Defense Tower that Ye Yan wanted to make was more than twenty meters high, far exceeding the height of the city wall, and it could attack the enemy before the enemy entered and was still outside the Liang City!

With such a tall defense tower, the amount of foreign gold needed is terrifying, which is why Ye Yan has to make a sufficient amount of foreign gold first.

With his previous experience in making black cuts, combat uniforms, and armor vehicles, Ye Yan is already very handy at using mental power to control and use spiritual power to shape the image of objects.

Even the first time I made the Thunder Tower, I didn't encounter any major difficulties.

Gradually, the heaps of gold on the ground became part of the towers......

As time passed, there was less and less gold on the ground, and the towers got taller and taller.

Although the blueprint of the Thunder Defense Tower is purple, there is a certain gap between it and the golden blueprint of the Doomsday Warframe.

But it's still a very rare purple level in the last days!

Even though the steps to make it are much simpler than the battle suit and armor car, it still takes a lot of work to make the alien gold gather into such a tall defense tower.

The people below Liangcheng saw a coercive tower slowly rising.

Wu Wu suddenly realized: "It turns out that the boss recovered his mental strength for a night yesterday, and he went up the mountain after eating, because he wanted to be a thunder defense tower!" ”

"There... Isn't it a research center......" Chang Qing said as he looked up at the mountain.

Qi Fan took a closer look: "Yes!! It's a research center!! The boss is so nice, he knows to protect me! ”

Lu Wan slapped Qi Fan's head and said with a smile: "It's good to know!" The boss values your research very much, and we also count on your research to make us rise in Liangcheng! ”

Qi Fan immediately patted his chest proudly: "Don't worry, everyone! It's up to me! With my IQ, is there anything else I can't do! ”

After speaking, Qi Fan said excitedly again: "Now I have to disturb Boss Ye Yan to go to research, and after Boss Ye Yan finishes the Thunder Defense Tower outside the research center, I will go... No, I haven't asked the boss for the Magic Crystal yet! How to study magic crystals! The boss won't use up the magic crystals when making the gold......"

When Xu Gan heard this, he thought about it and said, "It's not enough to run out, so you don't have to worry about this." But the boss made such a large Thunder Defense Tower, how to say it, it also used a lot of foreign gold. There must be a lot of magic crystals to draw out and take to you for research, but yesterday I changed a special profession from a special trader, and I changed so many one-star evolution agents, plus I made the Thunder Defense Tower today, so much inventory was before, and there must not be much left now. ”

Xu Gan continued: "In the last days, the magic crystal is currency, and without the magic crystal, you can only watch when you meet a trader... Why don't we go out and kill mutant beasts and zombies while the boss is making the Thunder Defense Tower? ”

Wu Wu immediately slapped his thigh: "Okay!! Just take these recruits out for exercise! You can't drill for a day, you have to do it in real combat!! ”

Fang Yuanyuan was also a little excited and said, "That's right, anyway, a few of us are not injured, we are in such a good state, if we don't go, we won't go in vain!" You can train yourself, you can get magic crystals, and you can get something to eat! ”

Zhou Sheng sat on the side and said calmly: "I won't go, I want to cultivate spiritual power and strive to purify some more land." By the way, if you go out, if you have any seeds and plants, remember to bring me some. ”

Xu Gan nodded.

Hu Haitao sat on the ground, his arm was just a little better, just enough to bear to pick up a cigarette, and he began to smoke, his hand was still trembling, and he was afraid that the cigarette in his hand would fall and burn his feet.

"After being by Boss Ye Yan's side for so long, I finally know that I am still very weak, and I also want to kill mutant beasts... Alas, go ahead, and when I'm well, I'll show you my true strength. After speaking, Hu Haitao took another puff of cigarette.

Lu Wan smiled: "If you want to get better early, smoke less!" ”

Hu Haitao immediately retorted: "Lu Da Beauty, how can my evolutionary body's body be affected by this mere tobacco!" It's okay! ”

Everyone laughed.

The few core members who were injured were left, and the other core members all took the thirty or so two-star evolutionaries out of Liangcheng and went to hunt mutant beasts and zombies on several mountains connected to Liangcheng.

The faces of the more than thirty two-star evolutionaries also had eager expressions on their faces.

Without Liangcheng, they would not have a safe place to stand.

They also wanted to do something for Liangcheng, and they wanted to do something for the core members who had been standing in front of them.

All they can do is to keep getting stronger and protect Liangcheng!

Just in case, everyone also brought small rice dumplings and cows.

In this way, even if they encountered some unexpected dangerous situation, with the presence of the fourth-level alien beast Xiao Zongzi, they would have nothing to fear.

On the other side, after a night, Wen Yuannan had completely recovered his mental strength, and began to use tissue regeneration for the first time to regenerate skin tissue for Wang Yu, who was seriously injured.

Tissue regeneration is a special fifth-level profession for healing mages, and the difficulty is extraordinary, and Wen Yuannan felt even more difficult when he operated it for the first time.

It took an hour, spent most of the mental energy, and the regenerated skin tissue was only half the size of a palm.

Wen Yuannan took a break for a while, recovered his mental strength, and took a closer look at the regenerated skin by the way.

I saw that the area on Wang Yu's chest, which was originally as charred as other places, had regenerated a more capable pink skin, which looked incompatible with the surrounding skin.

Wen Yuannan looked at this small lump of skin with some magic, and touched it with his hand, only to feel very fragile.

Sure enough, it is the regenerated skin, which has not yet fully grown, and is more delicate than a baby.

If the surgery is performed in peacetime, the burned skin must be filled with the skin of other parts of the body, and it is impossible to use other people's skin, because the human body will have a rejection reaction.

Like Wang Yu and Zhang Aoran, the skin of their whole bodies has been burned, and they are no longer helped.

If the internal organs are seriously injured in the future, even if they have peacetime medical conditions, it is necessary to find a suitable organ, otherwise it is impossible to succeed in the operation.

But with tissue regeneration, none of this is a problem.

Regeneration is the technique of regenerating what you already have, as if it were a clone.

It's completely your own organization, and there will be no rejection.

Although the regenerated tissue is still somewhat weak in the initial time.

Just regenerating such a little organization took Wen Yuannan an hour, and it also took most of her mental power.

It seems that it is still a huge project to completely regenerate the skin tissue on Wang Yu and Zhang Aoran's bodies!

And the barrier between the two of them and the outside world is now completely gone.

The virus from the outside world can frantically invade the bodies of the two.

Moreover, it is still the end of the world, and there are countless tiny zombie viruses in the air around us.

Fortunately, both of them had been injected with immunization drugs before, and the zombie virus in the air did not work for them.

However, there are thousands of viruses in the air that are invading the two of them through flesh and blood, and they can kill the two people who are already in danger at any time.

So they could only rely on Wen Yuannan to keep using the green hot springs in their bodies, and at the same time, Wen Yuannan also placed the crystal spirit shield close to the two of them.

The crystal spirit shield is completely a product of professional and spiritual power, and it is placed close to the two of them, so that the two of them will not have any infection.

After using the green hot spring on the two of them again, Wen Yuannan began to close his eyes and regain his mental strength.

She has a very heavy task on her now.

There are not only the two "charred corpses" in front of him, but also the two broken arms of Hu Haitao and Zhang Yuru, as well as Huang Yanxing who is still in a coma, and Hu Haitao's internal injuries.

She can't rest for a moment now......

After the sky gradually darkened again, everyone had been looking at the research center for a long time.

All the people who went out to hunt the mutant life also returned, and even ate their food.

They all unconsciously looked at the Thunder Tower, which was getting taller and taller.

"It's not over yet... How tall is it......"

"That's more than ten meters!"

"What a huge undertaking this has to be....."

Suddenly, the Thunder Tower finally stopped rising, and everyone was silent.