Zhao Yun said with a puzzled face: "If it is really Yun Chang's manifestation, what does this vision suggest?" ”

The cavalry stopped again, and Zhao Yun and Zhang Ren sat on their horses, looking at the surrounding terrain, their faces full of doubts.

This terrain does not look like it can be ambushed, and the riverbed here is high, so the Wei army cannot cross the river from this area, even if there is a war in the future, this place cannot be a battlefield.

Zhang Ren looked at the surrounding terrain, which is located on the bank of the Yellow River, the bed of the Yellow River is high, high in the west and low in the south, and the drop is more than ten meters.

Zhang Ren looked at the terrain, his eyes narrowed, and he suddenly urged the war horse and went straight to the riverbank.

Running up to the riverbank, Zhang Ren looked at the Yellow River below.

Guanzhong, and the area around Bingzhou, is the Loess Plateau, where soil erosion is serious, and the Yellow River passes through these areas, carrying a large amount of sediment.

Over time, the riverbed of the Yellow River was raised.

In general, people have the impression that the river is like a ditch, and the water flows in the ditch, which is below the ground. If it is not lower than the ground, then the water will flow all around, and will not flow east into the sea.

The Yellow River is different because of the large amount of sediment accumulated in the Yellow River, and its riverbed is level on the ground, so in order to ensure that the Yellow River does not break the embankment, people can only continue to raise the embankment on both sides of the river.

Over time, the Yellow River became a hanging river, located above the ground, and the situation in Henan was the most serious. Here in Dahan, that is, the section of the river from Luoyang to Baima.

Zhang Ren stood on the embankment, looking at the Yellow River below, his brows furrowed.

Zhao Yun also followed, looked at the surging Yellow River and muttered: "The water level of the Yellow River has risen, it seems that Lingxun has begun." ”

"Ling Xun?" Zhang Ren is a native of Yizhou and has never heard of Ling Xun, so he asked.

Zhao Yun explained: "The Yellow River is different from the Yangtze River, it freezes in winter, and the ice floats on the water, which increases the resistance, which will cause the water level to rise upstream, which is called Lingxun."

”

Zhang Ren said dumbly: "There is such a statement, Ling Xun, this is the first time I have heard of it." ”

"I still heard His Majesty say the word Ling Xun, but it is very appropriate." Zhao Yun continued: "It has just entered winter, and there is not much ice in the downstream, and the water level has not risen much. In the past month, the ice surface of the river freezes in some places, and the water level is dangerous because the water cannot flow out. ”

Zhang Ren muttered: "Then if in the spring season, the ice on the river surface of the downstream cannot be dissolved, and the snow-capped mountains upstream, wouldn't it be more dangerous?" ”

Zhao Yun nodded and said, "Yes, this situation happens every year, if the weather is late." If the ice on the river surface in the lower reaches does not melt, and the snow in the upper reaches melts first, the water level of the Yellow River will flood the embankment at least and may lead to the bursting of the embankment.

The harm is not less than the flood season when the summer rainstorm comes. ”

Zhao Yun said, looked at the embankment under his feet, and said: "Looking at the soil color of the embankment, the embankment here should have been raised last year, and I don't know if it was caused by the flood or the summer rainstorm!" ”

"Break the embankment, break the embankment ......" Zhang Ren listened to Zhao Yun's words and muttered to himself.

Seeing this, Zhao Yun hurriedly asked, "Brother Zhang, but what did you think of?" ”

Zhang Ren grabbed Zhao Yun's arm and said excitedly: "Zilong, you said, Yun Chang has appeared, will it remind us to break the embankment?"

You see the location, the riverbed is dozens of steps above the ground, once the embankment breaks, we are located in Baima, and there is a life? ”

Zhao Yun was stunned when he heard this, and then smiled and said: "How is this possible, although the flood season is dangerous, it will not break the embankment easily, let alone here, if the Yellow River bursts the embankment here." Then the Yellow River will swing south, from Xuzhou into the sea, its water is connected with the Huai River, flooding countless lands, endless harm. ”

Zhang Ren said in a deep voice: "The Yellow River itself will not burst its banks, but how man-made? ”

Zhao Yun's eyes widened: "You mean that the Wei army excavated the embankment of the Yellow River?" ”

Zhang Ren nodded and said: "Only in this way can we explain the vision, this matter has to be guarded against, and the cavalry should be sent to patrol along the Yellow River, so as not to dig the Yellow River by the Wei army." Now Lingxin has just begun, but when Sima Yi comes, the water level will definitely rise a lot, and once the embankment bursts, the consequences will be unimaginable. ”

"That's fine!" Zhao Yun nodded, called a cavalry general, and ordered: "You lead five hundred cavalry to patrol along the Yellow River, and if there is any change, report immediately."

In addition, after sending people to find out where the Wei army on the north shore was, since Bai Majin did not see the ferry, the ferry must be on the north bank. ”

Strange to say, Zhao Yun ordered, and the wind not far away actually stopped.

Zhao Yun and Zhang Ren glanced at each other, only to feel that their judgment was correct, this must be Guan Yu's manifestation to bless the Han army in the dark.

Leaving behind 500 soldiers and horses, Zhao Yun and Zhang Ren led their troops back to Baimajin, because they did not carry heavy tents and the weather was very cold, Zhao Yun could only camp in an abandoned village near Baimajin.

The scouts who had gone to spy on the Wei army in Hebei returned before evening.

In a farmhouse, Zhao Yun and Zhang Ren sat together on a fire, listening to the scout's report: "General, we just set up a bamboo raft to cross the Yellow River from Baimajin, and found traces of the Wei army more than twenty miles downstream of Baimajin.

Now the Wei army has set up camp, looking at its scale, there are about 2,000 people. The camp was so heavily fortified that we were spotted by their patrolmen before we could get close, and we almost couldn't return. ”

Hearing this, Zhao Yun was puzzled: "Why didn't the Wei army set up camp opposite Baimajin?" Where the terrain is gentle and the riverbed is not high, it is easier to cross the river. How to get to the downstream station? Is it convenient to ferry downstream? ”

The scout shook his head and said, "The terrain there is not very good, and the Wei army only stabilized the ferry by nailing wooden stakes on the shore. And on the south bank opposite the camp, it is not easy to dock the ferry.

However, the Wei army is very strict in guarding the ferry, and now the Yellow River is extended, and the ferryboat is afraid that the Wei army will collect it, so if we want to cross the river, we can only build bamboo rafts by ourselves.

But the vigilance of the Wei army on the other side is very good, if we attack while we cross the river, I am afraid of ......"

Zhao Yun waved his hand and said, "Okay, I know, you go down and rest first!" ”

"No!"

After the scout left, Zhao Yun said to Zhang Ren: "I originally wanted to destroy the Wei army's ferry, but now it seems that it is impossible, the Wei army's protection of the ferry is very tight. ”

Zhang Ren smiled and said, "Zilong, I'm more convinced of today's judgment.

According to common sense, the Wei army should have set up camp opposite Baimajin, ready to meet the soldiers and horses on the south bank at any time. However, they were stationed twenty miles downstream of Baimajin, and the terrain there was not good for crossing the river. Do you know why? ”

Zhao Yun's eyes lit up: "They want to attract our attention downstream, so that we can relax our inspection efforts upstream?" ”

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