One of the most important methods in alchemy is the "fire alchemy". It is directly related to the invention of gunpowder. The so-called "fire alchemy" is about a waterless heating method. The origin of alchemy is very early, and there is a record of Fang Shi offering immortal medicine to King Jing in the "Warring States Policy".

Zhang Chao, who had been a general, was naturally very clear about the composition of gunpowder, and he arranged for people to find those alchemists, and soon found sulfur, saltpeter, and charcoal, and then processed and produced, and there was the earliest prototype of gunpowder.

It's just that if you want to use it in the war, it will take a period of tempering and experimentation. In this regard, Zhang Chao has given great support, and money is pouring in to support all the expenses required for research and development.

But today, Zhang Chao went to see not gunpowder, but the results of the wheelbarrow. That is, it is ready to use troops against Xiliang, where the mountains and rivers are long, and many roads are not easy to walk, with this thing, the food and grass of the army will not be a problem, which will solve a big problem, and it is not an exaggeration to say that it can have a great auxiliary effect on the outcome of the war.

After the iron guard and the brocade guard were in formation, Zhang Chao rode on the majestic white crane horse, dressed in standard white clothes, and headed towards the Weapons Academy under the escort of Dian Wei and Xu Chu.

Under normal circumstances, Zhang Chao's travel will not be too grand, such as traveling to quiet streets, loess paving, sprinkling, gongs and opening the road, etc., even pedestrians in the distance on the street can also see him.

Zhang Chao also used this way to tell the people of Jinyang City that if he was there, he would be safe and sound.

Tie Wei and Jin Yiwei were also accustomed to the way their lords traveled, and they did not suspect him, but walked neatly on the street, protecting Zhang Chao in the middle.

The team walked out of the general's mansion, and whenever they encountered the patrols in the city along the way, these people would stand in place at a long distance, looking at Zhang Chao with a look of admiration and respect.

The people and the soldiers are so lovely, whoever can bring them benefits, these people will follow whomever they want, who they will believe, and even die for them. But it is often such a small request, often as the town guard side of the princes can not be satisfied, I have to say, these people still do not put the position of the people in the most important place.

Zhang Chao, who was riding on a white horse, came all the way, his face was full of smiles, but whenever he saw soldiers and civilians standing on the side and looking at him, he couldn't help but nod his head. And it was this small gesture that made passers-by excited, and even they would go back and brag for a long time because of today's encounter.

The team walked unhurriedly, and the Iron Guards and the Jinyi Guards were indeed in a rapid tension all the time, and it was obvious that they would be extremely nervous when it came to the Leaving House, because they both knew the importance of being protected in the middle. It is no exaggeration to say that if there is no such person in the north of the entire land of China, then all the prosperity before is likely to be lost, and perhaps there will be wars and wars in the future, and rivers of blood will flow.

The guards were all so nervous, not to mention the two guards Dian Wei and Xu Chu, who had been looking around with very vigilant eyes, as if everyone was an object to be guarded against.

Zhang Chao didn't care about the guards being so nervous, this was their duty, and it was supposed to be like this.

The team kept moving forward, and it was extremely normal along the way, but when they began to turn from the main street to the intersection of the Weapons Academy, the two strong men squatting on the side of the road suddenly rose from the ground, and then jumped to the middle of the road.

"Who?"

"Be careful."

"Protect the lord."

Suddenly, all kinds of shouts rang out, and then the originally neatly arranged team instantly changed into a defensive formation, accompanied by the sound of various weapons unsheathed.

"Get out of the way!" Beside Zhang Chao, Dian Wei, one of the chief guards, had already shouted loudly, jumped out of the team, and quickly appeared in front of the two people who were blocking the way.

The double halberd in his hand was already in his hand with Dian Wei's landing, and then smashed straight forward with the sound of the howling wind.

"To live." Behind him, Zhang Chao's voice as steady as Mount Tai came at this moment.

Dian Wei, who was about to angrily smash the person who was blocking the way, also collected a few points of attack, and then his feet sank and fell in front of the two.

For Dian Wei, who suddenly jumped out, the two of them were stunned at first, and then they thought of something, that is, their figures began to retreat to both sides. Apparently they were very afraid of the heavy halberds that looked like they were made of fine iron.

"Afraid of me? Then you don't need to, just wait for you. Dian Wei had a conceited sneer on his face. He saw that the two people seemed to be afraid of the double halberd in their hands, and when he saw that the other party did not hold a weapon, considering that the lord wanted to live, he simply stuck the double halberd on his waist, and after that, he strode towards the man on the left and rushed forward.

Dian Wei's eyesight was so powerful, he could already see that this person should be the head of the two.

Dian Wei rushed suddenly, and he didn't use a double halberd, and the man who was retreating also had a hint of pride in his eyes, and then his footsteps stopped, and he stood there, obviously he also wanted to try the Jin Liang of the general's guard.

Seeing that the person who came was not retreating, Dian Wei's face showed a look of disdain. Although he doesn't use a weapon now, it's not something that ordinary people can provoke.

With a hint of sarcasm at the corner of his mouth, Dian Wei's footsteps did not stop, and he still rushed straight in. Soon collided with the comer, and then smashed forward with a straight punch.

In the face of this punch, the person who came was already on guard, and when he saw his arms raised, he was in front of him like this, obviously, he wanted to use this defensive power to block Dian Wei's momentum.

But the people who came still underestimated Dian Wei and looked down on themselves. In his opinion, this block might be able to resist everything, but when the real arms collided with the punch, the force still smashed his arms sore, and then the whole body couldn't stop taking a few steps backwards.

Dian Wei's punch with all his strength is not something that ordinary people can follow. Although the person who came thought that his strength was not weak, he still suffered a loss.

Dian Wei had just forced the man to retreat, and another man behind him had already run over, came behind him, and hugged him with his arms stretched out.

The speed of the person coming was very fast, even Dian Wei was caught off guard for a while, and when he saw that he was being hugged, a look of surprise flashed in his eyes.

At this moment, the person who was knocked away before was also relieved, and then rushed quickly and kicked Dian Wei's body.

"Yikes." Seeing that he was attacked from front to back, Dian Wei was indeed not panicked, but instead stepped down.

As soon as the horse took a step, it was as if the soles of the feet had taken root, and even the ground collapsed a few inches. With this chaotic horse step, I saw Dian Wei's waist twisted, and the person who was originally holding behind was thrown out.

When he threw the burden behind him away, he kicked the front kick as well, and was about to land on his strong body.

If it is someone else, at this time, it will definitely dodge first and look for an opportunity to counterattack. But Dian Wei is so proud, even when facing the first fierce general Lu Bu, he will not have the slightest fear. Now looking at this kick, he was angry and dantian, and then his right fist was handed forward, because of this action, the entire right arm seemed to be stretched out indefinitely.

A punch rushed, and it was in one place with the flying foot, and the next thing was "Bang!" There was a muffled sound, and then the two bodies quickly separated.

I saw that the kicker was shaken away by a punch, and did not fall until he flew back to the wall by the roadside, and then fell to the ground like a mess of mud.

Looking at Dian Wei, he was still standing in place, protecting the appearance of punching out. The only difference is that your feet sink a little deeper into the ground.

Throwing off one person, beating one person away, Dian Wei snorted coldly and said, "Come on, take it." ”

Several iron guards who had been waiting for a long time immediately rushed forward, and then several scimitars were placed on the necks of the two people, revealing a trace of cold light.

"Don't get me wrong, we are General Liangzhou, I am Ma Dai, and he is Cheng Yin." Seeing that the knife flashed, he had been restrained, and the person who was punched to the corner of the wall quickly revealed his identity, obviously he was really afraid that he would be killed, so it was too wronged.

After Zhang Chao, who was riding on the white crane horse, heard this shout, his eyes showed an expression that was like this. Apparently he wasn't all that unfamiliar with these two names. "Okay, let's take them up first, and I'll talk about it when I get back."

After speaking, Zhang Chao did not take a look at Ma Dai and Cheng Yin, but rode a white horse under the protection of everyone and still moved forward.

Over the years, he has grown from a teenager to a prince, and Zhang Chao's heart has already become very strong. The more such people are, the less easily they will be swayed by others, that is, the things that are decided must be done and cannot be stopped.

Zhang Chao continued to move forward with a large group of men, leaving only twenty brocade guards and eight iron guards on the way to guard these two people.

The team continued to move forward, and after Dian Wei and Xu Chu, another guard chief, who had returned to the team, glanced at each other, their faces were ashamed, and then they bowed their heads and clenched their fists and said, "Lord, we are derelict in our duties." ”

Regardless of who they were, it was a mistake to suddenly appear at the front of the group, and the two captains of the guard were not able to prepare for a rainy day, so it's no wonder they said so.