This was the case on the second day, and it was still the same on the third day, until the sixth day, when the three or four kilometers of ice in the stream were "crushed" by Tang Shengxian, and Tang Shengxian stopped training.

The heart is reasonable, the hand is proficient, and he knows that the swordsmanship of the heavy sword has been exhausted, and there is no need to practice it again, that is, the sword demon is resurrected, and the swordsmanship that can be taught is nothing more than that. In the future, the internal force will grow, and the sword used will be lighter, and finally make the wooden sword like a heavy sword, which is just a skill from shallow to deep, all relying on their own cultivation, as for swordsmanship, but it has reached the end here.

Carrying the heavy sword, Tang Shengxian walked in the snow, thinking that if it weren't for Dugu's defeat and leaving this heavy sword, and if it wasn't for the eagle eagle to induce him to be from the side, his internal strength would have increased greatly because of the golden strange snake and snake gall, then this set of swordsmanship could no longer be seen in the world, and this kind of heavy sword without a blade could no longer be reached.

No, Yang Guo will come to this place in the future to learn this swordsmanship.

I learned it, it was time to leave again, and when I came to the sword mound again, Tang Shengxian reset everything, and the Xuantie heavy sword was also put back under the stone.

This heavy sword, he doesn't need it.

After saying goodbye to the eagle eagle, Tang Shengxian started the plane and flew in the direction of Zhongnan Mountain, if nothing else, he would stay there until the time of the hero's feast.

I didn't expect him to come back first, more than three months have passed, Yang Guo still has no news, the little dragon girl who went out to look for it should be going back, it is very difficult to travel in the middle of winter, let alone find someone.

Sure enough, after waiting for thirteen days, the little dragon girl returned.

"Xuanyi."

"Dragon."

The two were separated for a few days, so naturally they had endless words.

…………

"It's a pity that I haven't found Yang Guo for more than three months." In fact, Tang Shengxian didn't look for it at all.

"Yes, I don't know where Guo'er is now, and I don't know if he is frozen and hungry."

"It's up to Guo Daxia now, the direction he is looking for has the greatest probability, and I don't know if he found it."

…………

Maybe it's the basement, no matter how heavy the snow is outside in winter, no matter how cold the temperature is, the inside of the ancient tomb is warm like spring, although it is dark, but Tang Shengxian is accompanied by electric lights, and the little dragon girl is full of curiosity about this thing that is more magical than candles.

This portable lamp with its own power supply can be lit for 10,000 hours. This will bring light to the tomb for at least a year, so it is much more comfortable.

And now Tang Shengxian didn't turn on the lights, he was holding Xiaolongnu lying on the Hanyu bed, "sleeping", both of them were wearing clothes, and they didn't do anything ashamed.

The little dragon girl was already asleep, but Tang Shengxian was not asleep, as I said before, except for a rare coma, Tang Shengxian had not slept in a broad sense for a long time.

It's a good thing to have a few more hours of time, but it's another thing to be the same as ordinary humans, and then get married on the main plane, sleep with your wife, and when your wife falls asleep, you can only pretend to be asleep, use projection film to handle some things, or use high technology to make your wife's sleep quality a little higher, and then get up and do what you want.

It's different, it's different, but he can only accept it calmly.

Eating, sleeping, and practicing every day, he lived a simple life very happily, but Tang Shengxian did not forget the purpose of his coming to this world, in addition to learning the top martial arts and becoming the first in the world, Tang Shengxian also needed to kill this great Mongolian state established by Temujin that had not yet been called Yuan.

Since gunpowder and other high-tech weapons could not be used, Tang Shengxian could only think of other ways.

Machinery such as airplanes and automobiles can still be used, which gave Tang Shengxian a good idea to use the weapons that existed in ancient times to modernize and mechanize them.

He is now designing a high-performance catapult in his mind, which is a large-scale manpower long-range weapon that uses the principle of lever to throw stone projectiles, and its appearance is the progress of technology and the need of war.

But Tang Shengxian will make it completely free of human power, only mechanical force, and be able to move self-sufficiently.

This catapult, which Tang Shengxian named the slaughterer, was modified from a military card, and there are many unused military cards in the post-apocalyptic plane, which is just a waste to use.

In order not to be obtrusive, Tang Shengxian will camouflage the outer surface of the military card with fireproof treated wooden boards, so that it will be "harmless to humans and animals" like a Trojan horse.

At most, it comes down to the kind of product of the wooden cow and flowing horse, human beings are always full of fear of the unknown, so Tang Shengxian wants to explain what he took out.

The cab of the military truck is directly dismantled, the air conditioning is not needed, and the vacated space is added to the long body, and a car can be loaded with three trebuchets of the same type hinged by high-strength steel, supplemented by an automatic aiming system, an automatic loading system, an automatic launch system, and an automatic ...... It will be a real killing machine.

His ammunition is the extra stones that Tang Shengxian excavated in the base before, and he cut them twice to become suitable ammunition for "caliber".

In the face of these munitions, the load-bearing performance of the military truck is truly reflected, and the load capacity of this ten-wheeled cross-country heavy military truck has reached 15 tons, and the effective bomb load is also more than 13 tons, excluding the projection aircraft and other system equipment.

It's really terrifying, with trebuchets as an "ancient" weapon of war that covers strikes, Tang Shengxian also needs to strike with precision.

The crossbow bed converted from a tracked chariot played this role very well, the lethality of the stone is very large, and the stone can easily tear through the solid city wall by replacing the stones of different densities and hardness. But the lethality of the Tartars is much less, after all, the shrapnel attack of the stone is too weak.

But the crossbow arrows are different, this is specially used to shoot people, and Tang Shengxian developed a repeating crossbow, using the speed of a heavy machine gun to shoot the crossbow arrows like bullets, which produces a "barrage" can be imagined.

However, these are just drawings, and after the design is perfected, Tang Shengxian will also produce prototypes for various tests, so he is still very busy now, busy practicing, busy preparing these things.

During this period, Guo Jing also came on a trip, but he also found nothing, Yang Guo did not appear in his direction, Huashan matter, Tang Shengxian's drone came back, Xiao Ai set the instructions for him did not want to monitor Yang Guo, so Tang Shengxian also knew that Yang Guo finally appeared on Huashan, as for where he is going now, he is really ignorant.

There is no way, Yang Guo can't be found, Guo Jing can only go back to Peach Blossom Island first, but without Yang Guo, Tang Shengxian is more comfortable. (To be continued.) )