Bawangling, Liang army camp, the tent of the central army.

Gao Shun and Zhuge Liang were talking leisurely on the chessboard. Dian Wei was paced anxiously in the tent. In the past few days, the feint attack on the Bawang Ridge was still intermittent, and the three scouts who went to investigate the situation of the cave had also returned.

According to reports from these three scouts, the Zhuluo Army also set up strongholds on the other three mountains connected by caves, and each guard had about a thousand to two thousand troops. At that time, no matter which marching route the Liang army chose, it would pass through one of the four strongholds, including Bawang Ridge.

Like Bawangling, these three caves were stationed by Zhu Luo Army. In order not to alert the snake, the scouts did not enter the cave to inquire, but only marked the entrance of the cave in detail.

At this time, the soldiers entered the tent and reported: "The general reported to the scouts who went to Daheishan came back and presented the military information they explored in Daheishan."

Gao Shun took the letter and looked at it. Zhuge Liang and Dian Wei also put their heads over. The letter was accompanied by a sketch indicating the location of Daheishan and the location of Daheishan Cave.

The letter also said that the Zhu Luo army did use the caves in Daheishan to mobilize troops to Bawangling. Since the scouts began to monitor Daheishan, the Zhu Luo army has mobilized about 5,000 troops to Bawangling. Now, there are still ten scouts in Daheishan who continue to monitor the floating bridges on the Canglan River and the cave entrance in Daheishan.

Gao Shun circulated the letter to Zhuge Liang and Dian Wei and said, "The Zhu Luo army has troops to guard these exits. If we follow our plan, we need to divide our troops to capture these exits. If we cannot take it down quickly, wouldn't it be a frustration of the previous efforts? The foreign army in Bawangling cannot trap the Bawangling, but instead disperse its troops and is in danger."

Zhuge Liang pondered for a while, but did not say a better solution. He just said, "No hurry, aren't we still scouts who have not reported the situation? When they come back, we can always come up with a solution after we summarize the situation."

As soon as he finished speaking, Ling Bing entered the tent and reported: "Report to General, the scouts who went to the west to investigate the situation have also returned. This is a summary of the situation they reported." Ling Bing said as he presented a stack of letters.

Zhuge Liang immediately replied: "There is not enough to summarize the situation, so let them enter the account to report the details of the investigation in person. In addition, they will also find all the guides of the Pu people."

Just as the three of them summarized the situation, the scouts and Pu people's guides had been summoned to the tent. Zhuge Liang began to ask questions about the doubts and the places he was interested in.

"You said that there is a pool at the intersection of these cave passages. And is this the lowest-lying place in the entire cave system?"

The scout leader replied: "It is true that Zhuge joined the army. The scene has personally confirmed it. There is indeed a pool of water and multiple cave entrances leading to other places. Moreover, the foreign army has seen it pass by. As for the lowest point, it is said by the guide, and it cannot be confirmed."

Zhuge Liang turned his head and asked the guide: "So how do you know that this is the lowest point in the cave?"

The guide touched his head and smiled, "This is very simple. During the rainy season, the rain will be poured into several cave roads and fill it up. Just imagine that it is not the lowest place, how could it be like this."

Zhuge Liang's heart moved and said, "Oh, during that rainy season, will these cave roads be submerged?"

This time the answer was the old hunter: "Report to officials, if it is rainy and rainy, including the one entering the sinkhole, four paths will be blocked. Only the exits to Bawang Ridge and Daheishan will not be completely blocked, but at that time, they can only exit by taking bamboo rafts."

Zhuge Liang smiled and said to the scouts and guides: "Okay, we have understood the situation, so please step down first."

After these people left, Gao Shun asked, "Kong Ming has already had a plan to defeat the enemy."

"That's right, the situation is clear, and flooding is the most suitable way to break the enemy."

Dian Wei shouted, "But Kongming, people say that water will flood the caves only during the rainy season. How many months will the rainy season be there now? It's dry season. Even if it rains occasionally, it will be light rain."

Zhuge Liang smiled and pointed to the map spread on the table and said, "But there is a tributary of the Canglan River that flows through not far from this sinkhole."

Gao Shundian Wei Lishi said, "It turns out that Kong Ming wanted to dig a river and irrigate a cave."

...

In the wilderness, between the huge sinkhole and a river that was not wide, a large number of Liang army's baggage soldiers were lined up in a long line. Their spears and guns were replaced with engineers' shovels and engineers' hoes.

Even in early spring, when it was supposed to be cold, the sunshine in the south and south was still strong. These soldiers were shirtless and sweating profusely digging the ditches.

In the surrounding areas, a large number of light cavalry and cavalry scouts patrol and guarded.

After a day and night digging, at dawn, a ditch that was nearly two miles long and three feet deep appeared in the wilderness.

At the command of the general, the soldiers dug a small hole on the several feet of thick soil separated from the river. The river water immediately poured out of the small hole, poured into the ditches and slowly flowed to the sinkhole. At the edge of the sinkhole, a small waterfall still appeared, and the water poured down to the bottom of the pit.

On the river bank, the small mouth was washed away by the water flow. The waterfall flowing into the ditches became more and more urgent. The waterfall next to the sinkhole gradually turned into a large waterfall.

A pool has formed at the bottom of the sinkhole, and the rumbling sound of water comes from the bottom of the pool. The water level of the pool gradually rises over time, quickly rising to the position of the cave entrance, and finally submerges the cave entrance.

...

In the super cave of Bawang Ridge, thousands of Julu soldiers were lying or lying. There were dozens or hundreds of other patrol soldiers patrolling back and forth at the edge of the cave room.

Deep in the cave, a five-person patrol team suddenly stopped. The leader looked at the ground in surprise. The previously dry cave surface was actually covered with a layer of water that was overflowing the instep. Then, they seemed to hear the sound of water flowing again.

They did not dare to neglect the situation when they found that the situation was abnormal and immediately reported it to Shangfeng. After a while, a team was sent by Zhu Luo to the depths of the cave to investigate the situation.

The team that investigated the situation went forward and found that the water was deeper. In the end, the water was flooded to their waists, so they could only hold the torch and stagger forward.

A sudden sound of rapids came, and one of them exclaimed: "Look!". Everyone looked at the sound. Under the light of the torch, they found that thick water columns were gushing out from the holes with fists on the wall.

These Julu soldiers retreated back in panic, running and shouting, "It's leaking, it's leaking! The cave is about to flood!"

At this time, the sinkhole was almost filled with the river water.
Chapter completed!