In Yangzhou, Hao Ren's biggest gain is Yang Dacheng. When he left Yangzhou, Hao Ren felt that the city was just some kind of copy of Hangzhou, and there was nothing particularly unique.

From Yangzhou to the north, an important pass is the Huai River. When he arrived at the Huai River, looking at the yellow water, Hao Ren felt that he might have reached the Yellow River. Because he had no experience of crossing, Hao Ren did not know the future of the Huai River. If Zhao Jiaren had not led the Yellow River back to the north, the Yellow River would have continued to capture the Huai River.

The seizure of the Huai River into the sea is a huge natural disaster, because the sediment deposited by the Yellow River gradually increases the channel of the Huai River, so that the Huai River can only accumulate water and become a waterlogged lake. "Every time the Huai River is in full bloom, the west wind and waves, the white waves are like mountains, Huaiyang hundreds of miles, the public and private are panicked, those who dare not sleep in peace, hundreds of years", the Huai River Basin was originally a good land of fish and rice, but it was made into a place of famine of 'nine years of famine in ten years'.

Hao Ren Wanhu didn't know about this problem, and Zhao Jiaren, who was born in Anhui during New China, knew about it. In the Song Dynasty, there was Du Chong, and the Republic of China had Chang Kaishen, who was reincarnated by Du Chong, and when he arrived in New China, the Huai River did not even have an estuary, and could only enter the waterway of the Yangtze River through the Grand Canal and Hongze Lake. Later, New China mobilized a huge amount of manpower, carried out many water conservancy battles of 10,000 or even 100,000 people, and artificially opened up the 'Northern Jiangsu Irrigation Canal', so that the Huai River had an estuary to flow into the sea.

Zhao Guanjia came up with the strategy of leading the Yellow River north back in the Battle of the Yellow River, which was certainly unexpected by the Mongol army, but it was also the result of the painful situation in the Huai River valley for many years that left too deep an impression on Zhao Guanjia.

Without the Yellow River to cause trouble, the Huai River is washing the sediment from its downstream rivers into the sea on its own. So Hao Ren Wanhu saw that a great river that was no less turbid than the Yellow River was flowing. On both sides of the Huai River, the woods that are beginning to grow look a little lush. Hao Ren Wanhu couldn't help but recall the place he saw, as long as it was by the water's edge, there would be such an artificial forest belt.

In the original plan, Hao Ren Wanhu was preparing to go north. Now that there is one more Yang Dacheng, Wanhu changed his plan, and he took a boat along Huaihe to the seaside. Such a muddy river is naturally full of earthy smell, and the boat that Hao Ren Wanhu was riding on, he felt a little dizzy.

Now the Huai River enters the sea in Haizhou (Lianyungang). In Haizhou, the Shanghai boat rode the south wind all the way north. After arriving at Zhigu Village, Hao Ren Wanhu finally breathed a sigh of relief. Back in Dadu, Hao Ren Wanhu hurried to restore his life. Kublai Khan's Great Khan was very satisfied with Hao Ren's errand, and with an extra three years of war preparation time, Dayuan could be much more calm.

After listening to Hao Ren's introduction to the Song State, Kublai Khan did not make an evaluation. After seeing the combat effectiveness of the Song army with his own eyes, Kublai Khan did not want to fight the Song army south of the Yellow River in the near future.

"Your Majesty, do you want to meet Yang Dacheng?" Hao Ren asked.

"Arrange for him first, and I'll see him when I have time. Well, let this person live with the Shi family. ”

"Yes. Great Khan, I brought back the method of building the aqueduct of the Song Kingdom this time, I wonder if the Great Khan is willing to hear about it? ”

"Uri Buhuachi repeatedly said in the letter, I think you were also moved by him."

"I've used it, and it's really good." Hao Ren tried to convince Kublai Khan the Great Khan.

"Some people say that repairing such a long waterway will destroy feng shui."

Listening to Da Khan's words full of strange power, Hao Ren was stunned. After spending two months in the Great Song Dynasty, Hao Ren found that the religious color of the Great Song Dynasty was very thin. As for the officials of the Great Song Dynasty, they can't say the so-called feng shui. After returning to Dadu, he heard the words of feng shui from the mouth of the Great Khan, and Hao Ren couldn't accept it.

After sorting out his mood, Hao Ren said: "Great Khan, after Hangzhou used the diversion canal, it is said that there has been no plague for three or four years. ”

"It's just talking. I also read Wu Li Buhua's letter, and asked Guo Shoujing and others, and they all said that most of them could no longer add this kind of thing. "Kublai Khan had no interest in aqueducts.

Hao Ren knew Kublai Khan's temperament, and it was impossible to convince him at this time. I won't talk about it anymore.

Kublai Khan was very busy, and Hao Ren's affairs were explained clearly, so the Great Khan let Hao Ren go out first.

Hao Ren is not the kind of guy who surrenders when he encounters difficulties, even if he can't talk about becoming more and more courageous, he is by no means a person who gives up easily. If it weren't for this, he would have lost his life when Songjiang Mansion was defeated. Leaving the palace, he went to Ahma. Ahmad didn't expect Hao Ren to suddenly appear, he sent his men away first, and hurriedly asked Hao Ren to sit down.

"Right Prime Minister, how many banknotes do we issue in a year now?"

"Why did Wanhu ask about this?" Ahma looked nervous.

"You used to laugh at Song Guo for indiscriminately handing over money, and just after you came back from Song Kingdom, you couldn't help but ask."

"Ten thousand households, but I don't know what the price of Song Guo's banknotes is now." Ahmaden's interest came at the time.

Hao Ren gave a little introduction to the situation of the Great Song Dynasty banknotes, originally the purchasing power of the Song Dynasty banknotes was very bad, but now the Song Dynasty banknotes have fully possessed all the functions of copper coins, and state-owned grain stores only accept banknotes when buying grain. In the cities where the banknotes are used the most, the value of the banknotes is very stable.

Da Yuan completely uses the banknotes as a currency, and has minted copper coins before, but it has not completely taken the road of copper coins as auxiliary coins, and there is even a denomination of ten wen in the banknotes of Dayuan. Therefore, Ahma was quite interested in the payment of banknotes in the Song Kingdom, but with Ahma's cleverness, he soon felt that the purpose of Hao Renwanhu was not to hand over banknotes and issue them.

"Ten thousand households, but I don't know what I can do for ten thousand households?"

Hao Ren admired such a smart person, and he told Ahma about his idea of building a tap water system in Dadu. After listening to Hao Ren's description, Ahma asked, "May I ask Wanhu, if we build tap water, can we collect money?" ”

"Collect money?" Hao Ren was stunned, he didn't remember that Da Song collected money on the tap water.

"What's the use of us building things like this if we can't collect money?"

Hao Ren knew that this was why many Confucian ministers did not like Ahma, and his attitude was so simple and practical. Therefore, Hao Ren did not need to criticize Ahma for any Spring and Autumn righteousness, he said: "Since the Song Kingdom is willing to spend so much manpower to build tap water, it must be of great use. ”

"Wanhu, this tap water may be of great benefit and use to the country. But that was Song Guo's idea, not my Dayuan's idea. If tap water can increase tax revenues and make the country strong, it can be built. However, as far as Wan Hu is concerned, tap water does not have such a function, and it looks more like decorating the peace. The Great Khan would not have agreed. ”

“…… Does the right prime minister want to say that the Song Kingdom used tap water to decorate the peace? ”

"Wanhu sent an envoy to the Song Kingdom, I think I should ask clearly, right?"

After such an answer, Hao Ren no longer wanted to talk about it with Ahma. Although the accounts are different, the attitude of the right prime minister of the Great Yuan is the same as that of the Great Yuan Emperor Kublai Khan, and Ahma's statement is closer to the essence of the facts. For such a business that can't make money, the upper echelons of Dayuan can't support it. From the point of view of cost performance, the people of Dadu are not without water to drink, and in terms of water price, it is much cheaper than the price of three pennies a load of water before Hangzhou in the Great Song Dynasty. So what's the point of providing purer tap water?

Hao Ren was in a heavy mood when he said goodbye, but Ahma said as if comforting: "Wanhu, there is no need to talk about this matter again." However, the Great Khan was very concerned about the affairs of the government soldiers. ”

On the way home, Hao Renwanhu was in a heavy mood. Having seen the current situation of the Song State, Hao Ren knew that the enemy state in the south was rapidly becoming stronger, but the Great Yuan did not show changes corresponding to the changes in the Song State. If this continues, the gap between the two countries will widen. After the Mongols became strong, they began to fight everywhere, but what about after the Song Kingdom became strong? According to the information provided by Yang Dacheng, even before the surrender of Lin'an, Zhao Jiaren had already eliminated the two weak southern states of Jiaozhi and Champang.

When he returned home in a depressed mood, the subordinates in charge of Hao Ren's business were already happily waiting in the living room. Seeing Hao Ren come in, his subordinates hurriedly stepped forward to salute. This action made Hao Ren feel very emotional. He hadn't paid attention to this kind of etiquette before, but this time after staying in the Song Kingdom for a month or two, Hao Ren found that the etiquette of the Song Kingdom was actually very simple, especially the etiquette for the superiors.

Those courtiers bowed to the Zhao official family, the officials called themselves, the officials called themselves, and the people called themselves. Usually I call myself 'I'. Mongolia is different, because of the clear hierarchy, the Mongols at the highest level have strict requirements for the etiquette of the inferior.

Hao Ren's Han subordinates finished the set of rituals, and then said happily: "Wanhu, the needles you brought have been sold for ten catties." ”

"What?" Hao Ren was stunned. The embroidery industry in Hangzhou is developed, and Hao Ren walked around during his time in Hangzhou and saw factories that produced needles and threads. Buy in bulk, the price is cheaper than that of Hao Ren's subordinates. So Hao Ren bought 100 catties of needles, 1,000 catties of awls, and more than 1,000 catties of good silk thread to bring back. I didn't expect to sell ten catties of needles in one day.

The subordinate continued: "Ten thousand households, the silk thread has also been sold. Half of the awl was sold. It's all set a long time ago in most of the capitals. Those far away haven't been able to inform them, and they should come to buy goods after they receive the news in the next few days. ”

"Hmm." Hao Ren Wanhu responded. After returning to Dadu from Hangzhou, this was the only good news he received. Then Hao Ren listened to his subordinates say: "Ten thousand households." I want to sell needlework, thread and awls to the steppe. I wonder if there are people you know? ”

"Grassland, ......," Hao Ren Wanhu said with some hesitation. The grassland was his hometown, but that hometown was so strange that Hao Ren felt that he couldn't even remember what it was like.