During this time, Zhao Yao was not in the Han Palace, but stayed in the north mountain of the Marsh Mansion.

Beishan has a special geographical location and has a natural barrier, and it is most suitable to hide in it to carry out "unseemly" experiments. Before the Shangyuan Festival, Zhao Yao finally succeeded in matching the black fire by constantly frying the alchemy furnace. Today, he is working on black fire in the laboratory in the cave of Beishan.

A few days ago, because of the death of the abolished prince's family, Zhao Yao did not come to Beishan to do the black fire experiment. In the past two days, Zhao Yao completely forgot about the tragic death of the abolished prince's family, and devoted himself to making black fire weapons.

Zheng Cheng followed Zhao Yao to the Beishan Cave, and as for the matter of making a waterwheel, he handed it over to the people below.

He Lianfang originally planned to go to Beishan with Zhao Yao, but Zhao Yao said that there might be danger in the process of making black fire weapons, so he didn't let him follow. Besides, the Han Palace's mansion needs someone to sit in charge, and if Wen Daoji and Zheng Qian and some of their officials have something to do, they can consult with He Lianfang.

In the study, He Lianfang was reading the news from the capital. After reading it, he took the letter in his hand and burned it on the candle flame.

At this moment, a figure emerged from the darkness. He hunched his waist and said to He Lianfang in a respectful tone: "There is nothing unusual about His Royal Highness the King of Han. ”

"Nothing out of the ordinary?" He Lianfang raised her eyebrows slightly, her expression seemed a little incredulous, "He didn't quietly contact the King of Chu or the King of Wei?" ”

The figure replied, "No, His Royal Highness the King of Han has not contacted anyone. ”

He Lianfang squinted slightly, and her expression was obscure: "This kid actually didn't contact anyone in the capital?" ”

"My subordinates have determined that His Royal Highness the King of Han not only did not contact anyone in the capital, but also did not contact Yangzhou."

"It shouldn't be, with this kid's temperament, he will definitely go behind my back and secretly inquire about the truth about the death of the abolished prince's family, and it is impossible to be indifferent." He Lianfang thought to herself, could it be that what he said that day scared Xiao Shi, a stinky boy, and scared him so much that he didn't dare to do anything? No way, the stinky boy isn't so timid.

"His Royal Highness King Han and Lord Zheng are making black fire weapons day and night." The figure didn't tell He Lianfang that Zhao Yao had made himself pitch black because of the experiments with black fire weapons every day in the past two days.

"Really scared by me?" In fact, what He Lianfang said that day was not to scare Zhao Yao, but to stimulate Zhao Yao, but he didn't expect it to be self-defeating.

The figure knew what He Lianfang was surprised about, thought for a while and said, "Master, His Royal Highness the King of Han hates to take the heir. ”

"I naturally know that he doesn't like to take the heir, but I think he should care about the murder of the abolished prince's family, and he will definitely secretly investigate this matter with the King of Chu and them." Unexpectedly, after listening to his words, this kid really didn't care about the murder of the abolished prince's family. It's not like the usual style of the stinky boy.

It seems that in the heart of the stinky boy, the death of the abolished prince's family is far less important than not being involved in the seizure of the heir. It was he who miscalculated.

The figure asked, "Is the master still staring at His Royal Highness King Han?" ”

He Lianfang waved her hand and said, "No need." ”

The figure continued to ask, "Master, are the kings of Chu and Wei still staring over there?" ”

"Keep watching."

As soon as the figure was about to say something, another figure appeared, one of the secret guards beside Zhao Yao.

Seeing that the dragon guard appeared in front of him so arrogantly, He Lianfang's eyes flashed with coldness.

The dragon guard took out a letter from his bosom and handed it to He Lianfang, and said, "General He, this is the letter handed over to you by the emperor. ”

When He Lianfang heard that it was the emperor's letter, there was no surprise in her heart. He took the letter with a blank face, looked down and opened it. When he finished reading the letter, his face immediately became gloomy, and his whole body exuded a terrifying aura.

The dragon guard was not afraid of He Lianfang's cold aura at all, and when he saw He Lianfang read the letter, he relayed the emperor's words to He Lianfang.

"General He, the emperor said that it is not an example. If you murder the prince next time, don't blame the emperor for being unkind. The dragon guard continued, "The emperor also said that you should know his temper and methods. The emperor also warns you not to forget that your duty is to support His Royal Highness the King of Han. If you forget your duties, the Emperor doesn't mind replacing someone to help His Royal Highness the King of Han. The emperor also said that if you weigh yourself, you are not irreplaceable. ”

After He Lianfang listened to the words of the Dragon Guard, her face was very dark.

"General He, the emperor let you do it yourself." The dragon guard said again, "The emperor asked his ministers to remind you that His Royal Highness the King of Han is not a fool, don't think that the things you did can be hidden from His Royal Highness the King of Han. If you let His Royal Highness King Han know about the plan between you and the emperor, then you should be clear about what the consequences will be. ”

With a bang, He Lianfang grabbed the tea cup on the table and smashed it at the dragon guard.

The dragon guard did not obediently stand in place and wait to be smashed, but shrewdly dodged it. The dragon guards only obey the emperor's orders and do not obey others. Although He Lianfang is a famous god of war and Zhao Yao's respected second uncle, he is not the master of the Dragon Guard, so the Dragon Guard does not have much respect for He Lianfang.

"The subordinates retired." The dragon guard appeared silently, and then disappeared without a sound.

The figure did not retreat, but continued to stand in the shadows, waiting for He Lianfang's next order.

He Lianfang's expression was grim, and she gritted her teeth and scolded: "Zhao Zheng, you dog thief!! This was the first time He Lianfang had been reprimanded and warned by the emperor so mercilessly, which made him very angry.

After he finished scolding the emperor, he wrote a letter and handed it to the shadow, asking the shadow to send the letter to the emperor. Of course, the content of the letter is not good content.

Zhao Yao, who was busy experimenting in the cave of Beishan, did not know the grievances between the emperor and He Lianfang for the time being.

In the past few days, Zhao Yao and Zheng Cheng have made black fire explosive packs, and have also successfully made fire guns and bullets needed for fire guns. Now they are busy making grenades and grenades, as well as artillery. Cannons aren't that easy to make, so you'll have to save them for last.

There was a loud bang, and a hill on the opposite side was blown up.

Dirt, stones, trees, and flowers burst everywhere.

Although Zhao Yao and Zheng Cheng hid far away, they were still splashed on their bodies. Zhao Yao's face was scratched by the shards of the stone, but he didn't care at all, his face was full of joy at this time.

Zheng Cheng, who was standing beside him, was even more excited than him, and he shouted loudly, "Your Highness, we have succeeded. ”

"It finally worked." If he doesn't succeed, his ears will be deafened by the sound of explosions.

"Fortunately, His Highness has controlled the ration, otherwise we would have been injured by the power of the grenade." Zheng Cheng only found out that Zhao Yao had a wound on his face at this time, and hurriedly took out a towel from his arms and handed it to him, "Your Highness, your face is hurt, you quickly wipe it." ”

"You wipe the blood off your forehead first." Zheng Cheng's forehead was also scratched by gravel.

"Your Highness, are we going to continue to increase the allocation next?"

"You can continue to increase the dosage, but there is no need to experiment." If the dosage is increased, the power will also increase, and then they will not be scratched by stone fragments, they may be blown away. "However, the success rate of grenades and grenades is still not very high, and it is easy to have a dumb fire or delay the explosion, which is easy to injure one's own people. And the firebolt too, we have to reduce the chance of accidentally injuring ourselves. ”

"That's what Your Highness said."

"The cannon can't be made for a while, so let's slow down, we have to continue to improve the grenades, grenades, and firearms." Zhao Yao looked thoughtful and said, "We have to improve it before May." ”

Zhao Yao has decided that the trade conference will be held on the fifth day of the fifth month of May, the Duanyang Festival. While inviting foreigners to the trade conference, they can also have a lively Duanyang Festival, so that they can feel the festive atmosphere of the next big week.

He also planned to hold a grand military parade during the trade conference, so that foreigners could see the mighty and domineering soldiers of the Great Zhou Dynasty and the advanced weapons of the Great Zhou. Of course, the Blackfire weapon will not be shown, but this is his hole card. Cold weapons such as bows and arrows, crossbows, swords, and spears can be sold.

The soldiers who participated in the parade ceremony, in addition to the soldiers of the Han Palace, also participated in the soldiers of the Lingnan Battalion.

Zhao Yao went to the Lingnan camp during the Chinese New Year, first cared about the soldiers guarding Lingnan, then sent them New Year's blessings, and finally he discussed the parade ceremony with the general of the Lingnan camp.

The soldiers of the Lingnan battalion are trained according to the training method of Da Zhou, so they will not walk in the right step. Zhao Yao deliberately asked Shen Sen and Chu Huan to go to the soldiers of the Lingnan camp to walk right and stand in a military posture.

Zhao Yao also wrote a letter to the emperor, asking the emperor to send some people to the swamp mansion to attend the first trade conference.

Regarding the invitation letter for the first trade conference in Marsh Province, Zhao Yao has already sent someone to deliver it, and it is not clear how many countries will be there and how many people will attend.

When Zhao Yao sent someone to deliver the invitation, he also brought a lot of local products from Da Zhou and Lingnan as gifts. Among these gifts, in addition to old things such as tea, porcelain, and silk, there are also many treasures such as glass, mirrors, glasses, cement and bricks made by Zhao Yao.

If you don't bring more "good things", how can you attract gentiles to come to the swamp province to participate in trade conferences and do business.

With a few months to go before the trade conference in May, Zhao Yao still has a lot of things to do. To be honest, even if He Lianfang hadn't warned Zhao Yao to intervene in the investigation of the murder of the abolished prince's family, Zhao Yao wouldn't have asked too much. He would only write to the kings of Chu and Wei to ask if they needed his help. With the temperament of the King of Chu and the King of Wei, they would never let Zhao Yao help investigate, because they didn't want Zhao Yao to get involved in the rights and wrongs of the capital.

After being frightened by He Lianfang's admonition, Zhao Yao simply didn't know what to do and continued to be busy with his affairs. In addition to preparing for the trade conference, he is now busy with spring ploughing.

Compared with the trade conference in May, spring ploughing is imminent. The climate in Lingnan is warm, and the time for spring plowing is earlier than in Beijing, and it will start in March.

The topography of Lingnan is more complex than that of the capital and Jiangnan, with high and low, undulating and undulating. The Quyuan plow is not suitable for all Lingnan rice fields, and Zhao Yao thought about improving the Quyuan plow to make it easier for the people of Lingnan to cultivate the land.

In addition to improving the tools for farming, Zhao Yao also plans to find a place to make terraces.

Although several years ago, Lingnan introduced double-cropping rice from Annan and other countries, and the grain output increased greatly, making Lingnan one of the granaries of the Great Zhou, Zhao Yao still felt that Lingnan's grain production was a little less. In fact, the main reason is that there is less cultivated land in Lingnan, and if there are as many cultivated fields in Lingnan as in Jiangnan, then Lingnan's grain production will be even more amazing.

Although Zhao Yao had never experienced the wars of the previous dynasty and had never been hungry, he had heard that many people were starving to death, or were so hungry that they ate the same kind of meat. In order to allow more people in the Great Zhou to have enough to eat, Lingnan must become a big granary beyond Jiangnan. So, he had to get the terraces out so that the people had more land to grow food. (End of chapter)