The news of the formation of the Yahai City National Weapon made the entire Great Zhou nervous.

Especially with the national weapon, there is also the news that Liu Cheng's military general's strength has exceeded 100.

Although because the spies could not be seen up close, almost all the spies of the forces ignored Wu Xian, who had a strange vision, and Liu Cheng, who had no vision, or should be said to not see the vision at all, in this breakthrough vision.

But even so, there were still as many as four visions they could see, especially the one of Li Longxiang's visions that covered several miles, and this one was the one that the Tang, Han and Chu Kingdoms paid the most attention to.

Because so far, the Great Zhou has also formed the national weapons of these three kingdoms, and they have military generals with more than 100 armed forces under their command.

So they knew better than anyone what such a huge vision meant, which meant that Liu Cheng had a military general whose strength was definitely not inferior to Xiang Yu, Li Yuanba, and maybe even more terrifying, which made them very nervous.

Of course, it's useless for them to be nervous now, Da Zhou doesn't have the ability to crusade against Liu Cheng at all.

Although they were able to take Qingzhou 'easily', they were only able to take Qingzhou, in the four seas behind Qingzhou, they had no ability to attack at all, and there was no way that the strength of Liu Cheng's army was too terrifying.

They knew that Liu Cheng even had a battleship several miles long under his command.

Although they didn't know what Liu Cheng's battleship was for, the size of the battleship alone would make them can't help but tingle.

In this case, the forces of the Great Zhou began to move around frequently, and that posture was really a posture to be condensed.

Of course, for the situation of Da Zhou, Liu Cheng is basically a posture of making trouble and letting him make trouble.

Before the national weapon was formed, Liu Chengcheng was not afraid of the Great Zhou, and after the national weapon was formed, Liu Chengcheng did not take the Great Zhou seriously.

He began to get busy after breaking through his own strength and roughly understanding the strength after mastering his breakthrough.

Liu Cheng was busy at this time, and it was the 'mysterious bluestone' that Yan Qing brought back last time.

As for the mysterious bluestone, the alchemists under Liu Cheng have already researched quite a lot of results.

This high-density energy body is the favorite of those alchemists, and they can channel the power within the bluestone through various means.

This power can be used to set up formations, use it to make talismans, use it to create props, and even use it directly to attack, they use the power of bluestone in a variety of ways, but one of them is the one that interests Liu Cheng the most, and it is also the craziest one of all the plans of these alchemists, that is, to make the [North Hell] fly.

Yes, you heard it right, those alchemists planned to use the power of the 'Mysterious Bluestone' to make the [Northern Underworld] fly, not only did they have such an idea, but they even put a lot of energy into research.

And their 'whimsical' idea was also highly recognized by Liu Cheng, and he even allocated a huge amount of money for them to use for research for this project.

After all, if they really succeeded in this matter, then the journey of the [Northern Underworld] would not only be the sea, then this battleship would be terrifying.

Think about it, a 1,500-meter-long, more than 600-meter-wide, battleship deck is filled with dense [Shenwei Invincible General], and it is still suspended in the air at a height of several hundred meters, how terrifying should such an existence be?

It is simply an undefeated air fortress, with this thing, Liu Cheng can sweep the world while lying down.

Of course, the alchemists are still only in the process of researching, and there is still a long way to go before it can be truly formed, and they still have a problem to overcome, that is, this kind of 'mysterious bluestone'.

Although the energy density of the mysterious bluestone brought back by Yan Qing was extremely high, it was basically impossible to make the Northern Underworld fly by relying on a single bluestone, and that group of alchemists conservatively estimated that at least five to ten 'mysterious bluestones' of that level were needed.

Therefore, after Liu Cheng broke 100 by force, he began to prepare for the exploration of the mysterious bluestone island.

In order to ensure success and safety, this time Liu Cheng personally took action.

Of course, the so-called personal action here is definitely not his own exploration of that island, he is not so bold, can produce this kind of mysterious bluestone place, the ghost knows if there will be any danger?

Therefore, Liu Cheng dispatched a clone, anyway, the strength of the clone is not bad, with his strength of about eight layers, under normal circumstances, even in the face of a hundred martial arts generals of Li Longxiang's level, he can easily suppress it.

And if there is any danger, he can easily withdraw.

So half a month after Liu Cheng's strength broke 100, Liu Cheng's clone began to explore that island.

What people didn't expect was that Liu Cheng completed the exploration in only one day.

From that island, or rather that cave, he brought out a dozen 'mysterious bluestones' the size of a basketball.

However, the first moment he came out of that island, he directly ordered the blockade of this defense, and no one should be allowed to approach within a radius of a hundred miles, as for the reason or something, Liu Cheng didn't say, but he thought it should be related to his exploration.

It's just that he didn't say anything about Liu Cheng's exploration afterward, and he didn't mean to mention it at all.

Liu Cheng didn't say it, naturally no one dared to ask.

In this way, the island discovered by Yan Qing became a taboo-like existence under Liu Cheng's command.

But no matter what, Liu Cheng finally brought out the 'Mysterious Bluestone', and with those dozen or so 'Mysterious Bluestone' alchemists, they can finally officially put into the experiment, according to the grandmaster-level alchemist under Liu Cheng's command, if everything goes well, they will only need a few months at most to see the [Northern Underworld] rise into the sky.

While the alchemist was busy with his work, Liu Cheng, who had just returned from that mysterious island, began to be busy again, and this time he was collecting Wang Fugui's martial soul.

Liu Cheng was already very concerned about this matter, but this time he seemed to be more anxious about this matter because he went to that mysterious island.

However, it is useless for Liu Chengjian to do this.

Now Liu Cheng has three copies of Wang Fugui's martial soul in his hands, and there are still four copies scattered outside, one of which is in Zhang Taiyi's hands Liu Cheng is clear, but the remaining three are there, this is a question.

Before, the dragon protection organization said that these three copies were in the hands of the mysterious person, but now the dragon protection seems to have been destroyed, and now Liu Cheng is really a little difficult to find......