When Shi Le, Fotucheng and others on the north bank of the Qing River, after judging that the water in the Qing River would not soon form a thick layer of ice, they all put down their worries and returned to the camp of Hu Han's army.
At the same time, the south bank of the clear river water.
"Your Majesty, it's really cold today, but the water in the Qinghe River may not be able to freeze for a while."
Zhao Kun, the general of the Chinese army, rubbed his hands and said to Liu Yu.
The wind and snow at this time were already very heavy. According to the extent of the snowfall, a severe cold was enough to freeze the water in Qinghe River.
"The ice in this river has just melted. Such a big cold wave should be able to freeze it."
Liu Yu looked at the Qinghe River flowing in the middle of the vast white land, and couldn't help but feel strong regret in his heart.
In fact, Liu Yu couldn't help but pray to the gods in his heart, for no other reason than to pray that this wave of cold wave would be stronger, strong enough to turn the Qinghe River into a smooth road.
"No, no matter how cold the weather is, it's difficult for the flowing river water to freeze overnight."
Wu Xin, the cavalry general next to him, heard Liu Yu's muttering to himself, and immediately expressed a very pityful tone.
"This kind of late-spring cold weather comes at the wrong time. Even if it freezes, if the weather gets warmer in a day or two, it will all melt."
After Zhao Kun heard this, he nodded and agreed.
"Yes, there is some thin ice on this shore, but even if there is ice in the middle of the river, it will definitely be too thin to pass."
When Liu Yu heard this, he felt some inexplicable memory fragments flashing through his heart.
"Zhao Kun, you just checked the river water. Is it frozen near the shore?"
Liu Yu asked.
"Yes, Your Majesty, but it's because the soil and rocks by the river were frozen so cold that some thin ice formed around them."
Hearing this, Liu Yu's heart suddenly moved. He got off his horse and walked towards the water of the river.
The thick white snow crunched under the feet.
Liu Yu tested the water near the shore with his hand, and sure enough he felt a thin layer of ice.
However, the ice is too thin. Let alone crossing the river on the ice, you have to be careful even if you want to pinch it.
"The water in Qinghe River is very cold, but not only does running water not rot, it is also difficult to freeze."
Wu Xin, who followed, said.
"The weather is so cold. If the river freezes overnight, people and horses should be able to pass by early tomorrow morning."
A bold idea suddenly came to Liu Yu's mind.
"Your Majesty, do you have a way to make the clear river water freeze immediately?" Wu Xin's surprised tone was full of disbelief.
Liu Yu smiled and said.
"The cold here is enough to freeze the river water now, but if you want to freeze the flowing river water, you need some 'ice species' to freeze the flowing water, otherwise it will really take more time."
Wu Xin and Zhao Kun next to him were both stunned when they heard this. They looked at each other with puzzled expressions on their faces.
"Your Majesty, what is an ice species?"
"It's freezing cold today, do we need any more seeds?"
Facing the two people's questions, Liu Yu was not surprised.
After all, even the so-called "ice species" he just mentioned was just a word he said casually. Not to mention that these two people couldn't understand it, even he himself couldn't find a suitable word to replace it.
"This Qinghe River is always flowing. Even if it can freeze, it has to be from the outside to the inside. So if we make the water flow faster and freeze from the outside to the inside, wouldn't we be able to save a lot of time?"
Liu Yu said.
Zhao Kun was still puzzled and continued to ask.
"What to do?"
"Use straw!" Liu Yu said.
"What do you mean? What are you doing with straw?" Zhao Kun was still confused.
Wu Xin, who was next to him, fell into thinking and quickly guessed Liu Yu's intention.
"I understand. What your Majesty means is to order people to throw a large amount of straw into the river on the shore. With these straws, the ice on the shore can be induced to grow toward the river!"
Liu Yu was overjoyed when he heard this. He patted Wu Xin on the shoulder and said approvingly.
"Yes, that's what I planned."
"So that's it. This matter is simple. Let's hurry up and order people to do it." When Zhao Kun heard that it was so simple, he immediately became happy.
"However, can this really form a thick layer of ice?" Zhao Kun was a little doubtful.
Wu Xin nodded and said while stroking his beard that was stained white by snowflakes.
"It should be possible. When I was selling horses in Changshan County, I often found out in the swampy areas that I passed through in winter that the more densely reeds there were, the earlier the ice there formed, and naturally the thicker it was. Now that I think about it, , it just fits His Majesty’s meaning of ‘ice species’.”
"Yes, this method was discovered by chance. It just matches Wu Xin's knowledge. It must be possible!"
Liu Yu immediately ordered Zhao Kun.
"Zhao Kun, hurry up and pass my military order to Cui Yu. Immediately summon all the men and women in the city and pile up all the weeds and straw inside and outside the city here for me!"
When Zhao Kun heard this, he immediately jumped up like a spring and took the order.
By this time, the sky had become even more gloomy.
The Hu Han military camp on the other side of the Qinghe River has been completely covered by the wind and snow.
The cold ice and snow cut Liu Yu's face, but he didn't feel it at all, because Liu Yu was looking at the opposite bank, in a daze.
"I must have heard of this story about freezing the river. Although I can't remember where I got it or who used it in history, the effect should be believable."
Liu couldn't help but silently clenched his fists in anticipation of this.
"It must be credible! Otherwise, I wouldn't have had such an idea."
Soon, Cui Yu, who received the order from Zhao Kun, ran over panting.
"Your Majesty, General Zhao said that you want me to summon all the men and women to transport all the straw to the shore?"
"Yes, this is what I mean, just do it!" Liu Yu no longer had the patience to explain any more.
Regardless of whether this method can really work, there is always a race against time. After all, the thickness and solidity of ice that freezes overnight is absolutely different from that of ice that freezes for half a night.
"Your Majesty, don't worry. I have already arranged for the children of the clan to make arrangements." Cui Yu saw the look on Liu Yu's face and immediately responded carefully.
"I'm here now just to ask Your Majesty if there are any other arrangements. Otherwise, if all the men and women are mobilized, if there are other arrangements, don't delay any longer."
Cui Yu said this, but his original intention was to confirm whether it was Liu Yu's intention.
At the beginning, Zhao Kun hurriedly gave him an order, asking him to prepare people and all the straw. Cui Yu was very puzzled by this strange order, but Zhao Kun looked mysterious and uncertain. Ken explained to him.
Cui Yu was doubtful about this strange order and was afraid that Zhao Kun would falsely pass on the order again. Therefore, he ordered his clan members to prepare according to the order, while he rushed over to confirm with Liu Yu.
"Don't worry, Mr. Cui, I have found a way to cross the river and defeat the enemy!"
Liu Yu confidently raised the riding whip in his hand and pointed to the other side of the Qinghe River.
"However, what Cui Gong said just now is indeed the words of an elder."
"There was indeed some oversight in my order just now. Mr. Cui, those young men who have been selected as state and county soldiers do not need to participate in this work of transporting straw. They only need to eat and drink well tonight and prepare to cross the river with me tomorrow to kill. Just fight the enemy!"
After hearing Liu Yu's words, Cui Yu was shocked, and the expression on his face was also very subtle.
Cui Yu turned his head and glanced at the blue-black water surface of the Qinghe River, and then said in surprise.
"Your Majesty, the boat and raft are not ready yet, and the river is not covered with thick ice. How can we cross the river?"
Liu Yu laughed.
"So, I need Cui Gong to seize the time and pile all the straw from Tobu here for me!"
Cui Yu was not familiar with these common affairs and could not guess the purpose at the moment, so he had to quickly accept the order and promise to pile up all the straw that could be found in and around Dongwu City for Liu Yu within an hour.
Later, Liu Yu summoned the generals of the army and ordered each ministry to let their soldiers eat and sleep well in advance, so that they could launch a surprise attack on the Hulu on the other side early the next morning.
"Gentlemen, as the time, place and people are favorable today, all three are with me. When the river ice is strong tomorrow morning, follow me on the ice to defeat these barbarians and let the banner of the Han Dynasty cover Hebei again!"
All the generals agreed with a loud voice.
However, many people were murmuring in their hearts. Everyone felt that the huge Qinghe River turned into ice overnight, which seemed a little unbelievable.
The Cui family of Dongwu in Qinghe is worthy of being the largest clan in Dongwu. They only mobilized the servants of their family to build "hills" of straw on the south bank of Qinghe River.
Thousands of strong men and women, braving the wind and snow, piled up more and more straw "hills" on the earth like ants moving.
"Your Majesty, it's almost done! All the straw and weeds inside and outside the city have been searched." Cui Yu ran to Liu Yu and said.
"good!"
Liu Yu nodded in response.
At this time, Liu Yu, who was wearing thick fur armor, could already feel the chill penetrating his whole body, not to mention the strong men who were carrying vegetation.
"let's start!"
Liu Yu ordered Zhao Kun again.
Immediately, hundreds of strong soldiers who were already ready to go threw the stacked straw into the Qinghe River according to their prepared positions.
At the beginning, the large pieces of straw were quickly washed downstream by the river water and disappeared from sight.
But as more and more straw was thrown down, the originally clear river surface began to be filled with straw.
These straws quickly stuck together and were blown by the howling cold wind, forming sheets of ice caps.
These ice caps ranged from small to large, from shallow to thick, and soon formed a huge sheet of ice that spread across the entire river.
"It's done! It's done!"
"It's done!"
With the faint light, Liu Yu and others saw this change.
Zhao Kun and others immediately clapped their hands happily and praised.
Even Cui Yu, who was always proud of his status next to him, couldn't help but clap his hands and cheer together.
"This kind of trickery is really surprising."
Cui Yu couldn't help but think, "It seems that this day has been used by Liu Yu for his own use. If the ice cap is 10% tomorrow, these Qingzhou Han troops who are like wolves and tigers will really drive away the Hulu." Leaving Jizhou."
When he thought of this, Liu Yu's face, which looked a bit ferocious against the torch, also became different in Cui Yu's eyes.
"Now it seems that Liu Yu really looks like an emperor!"
"Liu Yu promised me that once the great cause is achieved, he will implement a new official system of evaluating classics and conferring officials. This will be a great thing for my family of Cui, who is well-educated, and will be able to survive."
Of course Liu Yu didn't know Cui Yu's random thoughts at this time. After he saw the initial effect, his original worry disappeared immediately.
"Let's leave some manpower to continue. Except for the alert sentries, everyone else will go back to camp to rest."
Liu Yu looked nervously and excitedly at the already dark opposite side.
"Tomorrow at Mao, follow me across the river to attack Hu!"
=·=·==·=·==·
The next day, Mao hour.
It was still half dark.
On the north bank of Qinghe River, in the camp of Hu Hanjun.
The heavy snow that had been falling all night finally stopped, and the entire Huhan military camp was covered in white snow.
At this time, Shi Le had already put on his robes and was going to go on a patrol after eating some food.
Suddenly, the sound of hurried horse hooves was heard, and then it stopped outside the camp, and a figure broke in without warning.
Shi Le was not angry at all. This was his most trusted Jie guard, and he could directly report military information without any notification.
"General, it's not good, it's not good!"
The Jieren guard was panting, looking panicked, and even spoke intermittently.
Shi Le's heart sank and he frowned slightly.
"Don't panic, what happened!"
Guard Jiehu tried his best to calm down and said.
"General, the Qinghe River is frozen! I can vaguely see a large number of Qingzhou Army activities on the other side!"
After hearing this, Shi Le's mood returned to calm.
"What's so scary about this? It's normal for the clear river to freeze on such a cold night. If it turns into ice overnight, it must be weak. There's nothing to be afraid of."
"No, General, the ice on the Qinghe River is very strange. It is full of straw." The Jiehu guard's face was still panicked. "The villain went up to test it personally. The ice near the shore was full of straw. What a solid thing! One person and one horse can do it!"
When Shi Le heard this, he was immediately shocked. He stood up suddenly, and even the Qingzhou porcelain wine bottle next to him fell to the ground, and he couldn't care less.
"Is this true!?"
"You tell the truth, how can you deceive me!" Jiehu guard said.
"What about the ice in the river?" Shi Le asked hurriedly while putting on his armor.
"I'm afraid that the ice in the river is not strong, so I don't dare to look too far forward." Jiehu guard said with some fear.
"Quickly, tell Shi Le, Cheng Xia, Zhang Bin and others to follow me to check immediately!"
After Shi Le finished speaking, he rushed out of the camp.
ps; I remember that this was a real war example of spreading grass and freezing it, but I can’t remember exactly what happened, where and who. Does anyone know about it?
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