Returning from Tianyun Mountain, Xu Wen received another letter from Lian Linlin.

In terms of the speed of information transmission in ancient times, her letters were indeed written diligently, and Yue Yunluo did fulfill her promise to mobilize her forces to deliver information to them as quickly as possible.

Although the relationship was confirmed, Lian Linlin didn't tell him much in the letter, he only said that he missed him in the most straightforward way at the beginning, and then mainly shared with him what he had seen and heard along the way.

This is very Lian Linlin, although it looks very plain, but it gives people the feeling that she held her hot heart in front of Xu Wen and showed it to him without reservation.

Xu Wen smiled and gently stroked the surface of the letter, as if he was stroking Lian Linlin's hair.

This time, Lian Linlin went to a more remote place. She rode on a camel, walked through the desert, walked through the grasslands, looked up at the vastness of the sky, looked down at the dryness of the river valleys.

She sat under a dead tree for a long time, imagining its life, and set up a tent somewhere in the grassland and slept all night, hoping to see a litter of rabbits give birth.

She writes very casually, writing wherever she thinks, and occasionally when she is doing this, she will remember the past and write a stroke in passing.

In fact, she usually speaks like this, her thinking is extremely flexible, unrestrained, and innocent.

Interesting, now that Lian Linlin is far away from him, looking at the letter she wrote, Xu Wen's heart is closer to her and understands her better.

He looked at it with satisfaction, and immediately after reading it, he took up the pen and wrote to her.

He also said very frankly that he had recently heard that before the Great Zhou, there was an era called Tang, which was very wonderful and incomprehensible.

He was very curious about this now commonly known old Tang, and had a lot of doubts in his heart, and the legend was that Tiangong was not confused, so he wanted to become a Tiangong.

It is rumored that there were countless heavenly workers in the Tang Dynasty, and there was no limit to only one heavenly work in one generation, and it was still very possible for him and Lian Tianqing to become heavenly craftsmen together.

He didn't know how to become a genius, but no matter how he thought about it, he must learn more. So he worshipped Zhu Gantang as a teacher and learned calligraphy and painting from him.

Then he inevitably wrote about the tree under the moon, confined only to that night.

It is conceivable that even if you look at it again the next night, the moon may not be able to see such a perfect scene if the angle is changed.

But so what, the tree did exist and will live forever in his heart.

The heart and the reality, the moment and the eternity, are perfectly intertwined in that moment.

When he wrote this, Xu Wen's heart moved slightly, as if he had comprehended something.

He sharpened the ink, picked up the pen, and drew a new picture on the paper.

The composition and painting method of this painting are different from the ones he painted that night, and they are also different from those painted by Zhu Gantang, it is a new painting, which grows according to the tree in his heart.

After painting, he was a little satisfied, but also a little regretful.

Obviously, this painting has improved significantly from the previous one, it is no longer so stiff, and it has a feeling of being at ease. But overall, it's far from it.

Xu Wen scratched his head, dried the ink on the painting, and stuffed it into the letter.

He really wanted to behave more perfectly in front of Lian Linlin, but if he thought about it carefully, he didn't have to be so stubborn.

After sending the letter, he was busy again.

He brought Lian Linlin's letter back to modern times, first showed it to Lian Tianqing, and then revised it slightly and posted it on Weibo.

I haven't been here for a few days, and this new Weibo has more than a dozen fans, half zombie fans and half live fans.

The only Weibo post had one retweet and two comments, and the retweet was only four words - "retweet Weibo", one of the two comments was asking if the blogger was a girl, and the other was advertising, and there was nothing valuable to say.

Xu Wen was not in a hurry, and turned off Weibo after just one glance.

Take your time, don't rush.

He told Lian Tianqing about what happened in the Banmen world, and truthfully told him about worshipping the new master.

Lian Tianqing really didn't express any objections, but nodded appreciatively: "Zhu Gantang looks kind, but he actually has a very high spirit. Many people wanted to worship him as a teacher, but he never accepted an apprentice. He is willing to teach you calligraphy and painting, and he really appreciates you. He is quite unique in calligraphy and painting, Wu Keming and I are not as good as me, you study hard, it is a good opportunity. ”

"Hmm!" Xu Wen laughed and said, "One more thing......"

He also told Lian Tianqing about explosives, emphasizing the difference between yellow powder and black/gunpowder.

Lian Tianqing has watched a lot of videos lately, and inevitably sees modern warfare.

The scale and intensity of modern warfare are unimaginable to the ancients, especially all kinds of powerful thermal weapons, which make people's resistance into nothingness, and make the walls and defenses useless.

In fact, this is also one of the things he wondered about when he first came to this world.

From Wanyuan to Qingyu, the high-speed rail is unimpeded, and there seems to be no boundary between the two except for villages and farmland. In this case, what should I do if I encounter the enemy? What should I do if I am attacked by the enemy?

Is there no longer war in this world, and there is complete peace?

After watching a lot of videos, he knew that was not the case.

The absence of a wall does not mean that there is no war, it is just that the wall cannot be defended.

The war in this world is more terrible than in the other.

And an important reason why they became like this is the invention of explosives.

Now that he heard that Xu Wen was going to take the explosives, that is, the yellow powder, to another world, Lian Tianqing was silent, and after a long while, he asked, "Do you think it's okay?"

"I'm not sure, maybe I'm doing it wrong. But the world is not a world, and people are always like that. Xu asked.

After listening, Lian Tianqing was silent and didn't come out to see Xu Wen all night.

Xu Wen didn't urge, and went to find information related to yellow gunpowder.

It is not so easy to synthesize this yellow crystal in a zero-based world.

The next morning, at the beginning of the morning, Lian Tianqing walked to Xu Wen's side with the dew of Xu's house and asked, "Is there anything I can help with?"

Xu Wen looked up at him.

In fact, even Tianqing can be completely uninvolved.

What he meant by asking this was actually to mean that no matter whether Xu Wen brought a blessing or a curse to the Banmen world, he would bear it with him, and would never let him face it alone.

Of course, Xu Wen could understand what he meant, he smiled, pointed to a piece of content on the paper in front of him and said, "This place, I didn't think of what should be used to replace it." ”

He explained the principle to Lian Tianqing, and Lian Tianqing discussed with him what method should be used to achieve it over there.

The two asked and answered, and the atmosphere was solemn and harmonious.

This is a very long process, in addition to the synthesis of yellow powder under limited conditions, they also have to effectively control its stability and dosage to the point of complete control.

Lian Tian is a young man who walks the world when he is young, and is very familiar with the current situation in the world of Banmen, while Xu Wen has a better attainment in basic chemistry. The two have their own strengths and are very happy to work together.

In the end, they were done.