In the camp tent in the middle of the night, Tang Zhan, Lu Jing and others were still secretly plotting......

"This is the map of the area around Qiling Pass...... Lu Jing put the map flat on the table, pointed and said with the help of the mapped candle, "From south to north, this is the pass of Qiling Pass, and it is also the necessary place for our army to march." This pass is also the place where we went ten days ago, and General Rongwu set up camp on the shore of the cage lake in the north......" Lu Jing told in great detail, and Tang Zhan and Lao Jiu listened attentively on the side.

"By the way, the place where we observed the barracks that day was on this mountain, from this place, we could have an unobstructed view of our camp, so we chose a good position that day...... Lu Jing analyzed with a serious face, "But the problem is also here, our army can't go out, if we want to sneak into the front to secretly observe the movements of the enemy and us, we don't know anything about the enemy's forces; if we're unlucky, if the enemy spies sneak into our camp and learn about the movements of our army's formation, our army has no way of knowing, it can be said that our side is in the open and the enemy is in the dark... ...”

"What does the military advisor mean that on the day General Chang goes on the expedition, we still have to sneak into the confrontation position?" Lao Jiu couldn't help asking.

"That's right, although our army is not allowed to go on the expedition, but the situation on the battlefield, we have to understand, after all, if it is not good, General Chang Yuchun may not be able to successfully take the hard bone of Yanji Jitai......" Lu Jing held the whip in his hand and said, "Yan Jitai is old and calculating, and he knows Zhu Yuanzhang's troops, he will definitely delay the battle situation overtime, if it can't be completed within half a month, our army can also be ordered to go out to support, so in this half month, we have to make preparations......"

Tang Zhan stared at the topography depiction of the map. While pointing, he asked, "If General Chang Yuchun's troops and Meng Yuan's troops go head-to-head, where will the most likely battlefield be?"

Lu Jing used the whip to keep drawing circles in the Qiling Pass. Sometimes analyzed, sometimes said: "Ten days ago, Rongwu's army was defeated in the water battle of Cage Lake. General Chang Yuchun should not risk attacking by water again, and in my guess, it is most likely to march by mountain roads on both sides - after all, there are more than 20 miles along the edge of the cage lake, and if 100,000 troops march by water, the goal will be too blatant. Attacking with land defense and resisting the attack of the naval army is all too familiar to the Mengyuan army, which is good at land warfare......"

"Then Jing'er, do you mean that General Chang's army will definitely leave the mountain road?" Tang Zhan asked again.

"Eight or nine are not far from ten, but the key question is. Yan Ji Tai Baza Duo should also think of this, and will take countermeasures......" Lu Jing said, frowning from time to time, and said with a deep sigh, "Yan Ji Tai Baza Duo is very cunning, whether it is using soldiers or scheming, he can always calculate others, he can always predict the opponent's movements in advance, and then put the opponent in a place where he will never recover." If our army had not set up an ambush at the cage lake camp ten days ago, General Rongwu's troops would have been wiped out...... If you want to defeat him, you can only guess his movements first. But Yan Jitai was also very vigilant, and he fought ten days ago. He didn't even show his face in front of our army, which shows that he was extremely cautious, and such an opponent wanted to guess his movements first. It's harder than climbing to the sky......"

"General Nachang led an army of 100,000 troops into Xuzhou this time, if you can't guess Yan Jitai's plan. Wouldn't it also fall into the quagmire?" Lao Jiu asked worriedly.

"General Chang has rich combat experience and won every battle, and I believe that he will not repeat the mistakes of glory and martial arts, not to mention that 100,000 troops are not a small number. There are only 70,000 defenders in Xuzhou, and if you want to eat our troops head-on, you can't do it by talking......" Lu Jing continued to analyze and said, "But since Yan Jitai dares to defend the Xuzhou Pass alone, it means that he has this ability...... An army of 100,000 cannot be eaten raw, and from the perspective of the art of war, the only way is to contain it. If the 100,000 army is chained and moves forward simultaneously, there is no chance to contain or confront head-on, and if you want to succeed in containment, you can only raid or die in a place that is not even important, if this is the case......" Lu Jing said as she spoke, as if she had something in mind.

Tang Zhan couldn't guess Lu Jing's thoughts, but he understood that Chang Yuchun led an army of 100,000 to attack Xuzhou this time, which was not so easy to take, and there was even the risk of defeat in the middle of the plan. Estimating the time when Chang Yuchun might go on the expedition, Tang Zhan asked again: "When will General Chang send troops to act?"

"It should be tomorrow...... Lao Jiu followed, "General Chang has just been ordered to form an army today, at least let them recuperate enough before they march." ”

However, Lu Jing didn't seem to agree with Lao Jiu's point of view, she shook her head slightly, her eyes were calm, and she said: "No, General Chang Yuchun is a soldier at great speed, and he knows how to use troops quickly and unexpectedly, he will act tonight-"

"Tonight, isn't it too fast......" Tang Zhan couldn't believe it.

Lu Jing continued: "Tonight is not fast, often in the spring and often lead the troops to the expedition, the establishment of the army is several days and nights, the establishment of 100,000 is not complicated...... What's more, the Qiling Pass is a narrow place, and if you want all 100,000 troops to pass through the pass, it can't be completed in a few hours. If you want to get a preemptive plan and not give the enemy army of Mengyuan a respite, the key is to send troops quickly-"

"If that's the case, maybe it's ......," Lao Jiu hinted.

"Sister Jing, there's movement-" As he was talking in the tent, Zhao Zichuan's voice came from outside the tent.

"It's coming—" Lu Jing's eyes froze, as if waiting for an answer.

The people outside neatly opened their tents, and the person who came in was indeed Zhao Zichuan. After taking care of Li Yuru tonight, Zhao Zichuan has been observing the movement near the main camp of Chang Yuchun, and this time he came back to report the situation.

"Sister Jing, you're right, General Chang Yuchun will act tonight!" Zhao Zichuan stepped forward and pointed to the map on the table and said, "It's true that 100,000 troops are going on the expedition, the location and direction are the Qiling Pass where General Rongwu went out ten days ago - 100,000 horses and horses to pass through such a narrow Qiling Pass, I'm afraid it will take a night's work......"

"From this point of view, if you want to follow the situation of the troops, don't be in a hurry tonight, wait until tomorrow morning, General Chang's troops have almost all passed the pass, we are quietly sneaking into Qiling Mountain, and we will follow the original path ten days ago......" Lu Jing said seriously.

"Sister Jing and Brother Tang Zhan are going. I'll go with me too—" Zhao Zichuan said, "Anyway, the Five Absolute Formations are almost finished." As a flying cavalry general, he always rests on his laurels in the battalion. It is not good to detect the enemy situation without leaving the camp. ”

"You come with us tomorrow, is it okay with my sister-in-law?" Lu Jing was concerned about Li Yurulai at this time.

"It's okay, with Brother Xiao and Miss Su taking care of her, Yuru won't be in big trouble, anyway, it's not a military war, this half-month ban will allow Yuru to raise ......the baby more at ease," Zhao Zichuan said with relief.

"Then it's decided, I still have fools, as well as Brother Zichuan and Lao Jiu. Go to Qiling Mountain early tomorrow morning-" Lu Jing said solemnly.

"Got it-" Zhao Zichuan said without changing his previous arrogance.

"The old body understands......" Lao Jiu also replied softly on the side......

"Really, what's going on, it's getting too fast outside-" Just after making the plan, the voice of Lu Jing's brother Lu Zhao came from outside the tent.

"Brother, be quiet, my sister is still talking in the camp......" Lu Jing's younger brother Lu Meng was also outside the tent, with his brother Lu Zhao.

"Change the sky?" Lao Jiu seemed to be worried about something, and said secretly in his heart.

"Really, the two of them can't rest so late. Why are you running into this deep camp......" Lu Jing couldn't help but whisper.

"Strategist, something is wrong...... Lao Jiu subconsciously raised his voice to Lu Jing.

"What's wrong?" Lu Jing didn't know what Lao Jiu thought, so she asked casually.

"Just now the Lu brothers said that they want to change the sky, should it be ......," Lao Jiu continued.

"Could it be anything?" Lu Jing still didn't understand what Lao Jiu said.

Lao Jiu eased his mind. Said seriously: "During the day today, I observed one or two celestial phenomena in addition to practicing the formation, and found that the clouds and mist in the sky were strange. Tomorrow there may be a big change in the sky......"

"Do you still know celestial phenomena?" Lu Jing asked curiously.

Lao Jiu nodded and continued: "The brother of our Tangying Association was originally in the time of the long stay in Wild Wolf Mountain. Observing the heavens is a basic skill, otherwise there are so many of us brothers. I won't stay in the changeable and harsh environment of Wolf Mountain......"

"Then what do you mean by celestial phenomena?" Lu Jing asked again.

"Let's take a look at what the Lu brothers said about changing the sky for the better...... Lao Jiu added.

Lu Jing thought about it, and then said to Zhao Zichuan: "Go, call my brother and my brother in-"

Zhao Zichuan shook his head, turned around and walked towards the outside of the tent, and secretly teased in his heart when he left: "Cut, after this ghost girl became a military advisor, she really loves to call people, and it is no different from when she was the eldest lady in Bianliang......

Zhao Zichuan opened the tent door and said to Lu Zhao and Lu Meng outside the door: "Brother Lu Zhao, Xiao Meng, Sister Jing asked you to come in-"

As soon as the tent door was opened, a biting cold wind hit the face, and Tang Zhan, Lu Jing and Lao Jiu in the tent couldn't help but shiver a little.

"It's a little cold...... Lu Jing couldn't help but sigh.

When Lu Zhao and Lu Meng heard this, they entered the camp without thinking. Seeing Lu Jing pointing and gesturing in front of the map, Lu Meng couldn't help but say, "I'm right, my sister is talking about things and planning-"

Lu Jing looked at her brother and younger brother, and then asked Lu Zhao, "Brother, what did you mean when you said that the sky is changing outside?"

Lu Zhao didn't think about it, and said bluntly: "It's just cold-it's okay during the day today, and it was okay just now, but suddenly, the temperature dropped a lot all of a sudden, and it was so cold that it only made people shiver...... It's been a long time since spring, and it's really a bit abnormal to suddenly turn back to such a cold wind......"

"During the day, the clouds gather in the sky, and at night they fall suddenly, and the cold air suddenly hits, which is a sign of a thick fog tomorrow-" Lao Jiu said with great certainty.

"Dense fog?" Tang Zhan and Lu Jing said in surprise at the same time.

"What are you talking about?" Lu Meng hadn't figured out the situation at the scene yet, so he rubbed his head and didn't know where to start.

"Is this true, there will really be a thick fog in the area of Qiling Pass tomorrow?" Lu Jing asked urgently.

"I'm afraid that not only Qiling Pass, but even under the city of Xuzhou, we may also be ......covered by dense fog," Lao Jiu continued, "And the warm spring is cold, this foggy day is rare for several years, I'm afraid it will last for at least seven to ten days——"

"Seven to ten days, which means ......" Tang Zhan seemed to realize something, and couldn't help muttering.

"General Chang led an army of 100,000 to march to Qiling Pass, and he will encounter...... Dense fog!" Lu Jing replied with a serious expression, "This situation is an unfavorable sign of the weather, and it lasts for seven to ten days, and the plan to take Xuzhou in those few days is simply invisible......"

"Then what should we do now, tomorrow when we go to Qiling Pass, won't we also be able to observe the enemy and our military?" Zhao Zichuan was also worried.

Lu Jing thought about it for a long time, and then said slowly: "We still have to go, since it is a dense fog in distress, then we have to find out, after all, there are many good generals under Yan Jitai's account, and Li Chengsheng, a military officer in the army, is a person who is good at scheming and diligent, maybe there is no lack of skills to observe celestial phenomena." If you are familiar with the celestial phenomena and use tactics, then General Chang Yuchun may be really more auspicious...... Tomorrow's plan has changed slightly, Lao Jiu, since the brothers of your Tangying Association are all good at celestial phenomena and mountain roads, and go to Qiling Pass tomorrow, Lao Jiu, you can send a few brothers from the Tangying Association who have a lot of business, and then you will be in reserve-"

"The old body understands, the old body will go back and prepare—" Lao Jiu replied, and then quickly retreated from the tent......

Almost all the people present understood the bad situation of Qiling Pass tomorrow, thinking that the time and place were not occupied, and the important place of Xuzhou could not be attacked for a long time, and everyone was also depressed and urgent in their hearts.

"Qiling Pass, is it really an insurmountable way of natural danger......" Lu Jing looked at the map of Qiling Pass on the table, and said secretly in her heart......

Qiling Guanlang Lake Xuzhou Guanwai position, Mengyuan military camp tent......

In the middle of the night, Yan Jitai Bazaduo, along with his cronies Li Chengsheng and others, were also thinking about the countermeasures of the march. Just now, the spies got the news at the front of the position that Chang Yuchun had led an army of 100,000 to approach Qiling Pass......

"100,000 troops pressed the border, this time Zhu Yuanzhang directly sent the main general Chang Yuchun ......" Yan Jitai Baza looked at the map, and kept muttering, judging from his expression, Yan Jitai didn't seem to be as easy as when he dealt with Rongwu before.

"My lord, what about the 100,000 army? Zhu Yuanzhang's troops are simply vulnerable, and in the battle of Langhu ten days ago, didn't we defeat them?" said one of his generals comfortingly.

"A general has no ambition, and the three armies are killed in vain, and the reason why Rongwu was defeated is because of his ......ability," Yan Jitai shook his head and said slowly, "But Chang Yuchun is not, this is the first fierce general under Zhu Yuanzhang, although he fought in the south and the north, and won the battle of Chen Youliang and Zhang Shicheng, this kind of person is by no means simple......"

Li Chengsheng did not speak for a long time, but sometimes observed the night sky outside the tent, and sometimes perceived unknown things with his hands......

"If General Ben is not mistaken, Chang Yuchun will definitely learn the lesson of the defeated army of Rongwu, and take the main army to take the mountain road as the base, interlocking layer by layer, step by step, and the 100,000 army is chained and invulnerable. This army is approaching the city of Xuzhou, and I am afraid that it will be difficult to use a plan on ......the way" At this moment, Yanji Jitai Baza Duo seems to have a headache in the face of Chang Yuchun's "vast offensive".

"That's not necessarily—" At this moment, Li Chengsheng suddenly smiled lightly at the door of the tent.

Yan Jitai has always trusted Li Chengsheng the most, since Li Chengsheng said such words, he must have a plan in his heart and a plan, and then he turned from yin to sunny and said: "Did the military advisor come up with a strategy to break the enemy?"

"I don't dare to say anything about breaking the enemy, but it is enough to contain it. Your Excellency can immediately send an envoy to Huaibei to ask for reinforcements, as long as the number of troops is sufficient, Xuzhou will wait for it to the death, and Chang Yuchun's 100,000 troops want to break through, and there is no chance of winning......" Li Chengsheng continued, "And what our army's existing troops have to do is to contain - as long as they succeed in containing Chang Yuchun's troops for more than a few days, this battle will either be won or won."

"How to contain it, the military advisor will come quickly-" Yan Jitai Bazaduo said hurriedly.

Li Chengzhi straightened his sleeves and said with a light smile: "My subordinates often close the sky today, and the momentum of the clouds and mist is in the shape of Xuanwu, from top to bottom, rushing to pounce, and it will turn cold at night...... This is the trend of heavy fog, and it is rare for several years to last for ten days. When the 100,000 troops of Changyuchun resist the Qiling Pass, and they are stuck in the thick fog and dare not attack lightly, we can use a clever plan in the dark......"

"No problem, immediately General Ben will send an envoy to Huaibei to ask for reinforcements, and the rest of the army will be deployed, and all will obey the orders of the military division-" Yan Jitai completely trusted Li Chengsheng, and was even willing to temporarily hand over the command of the army to Li Chengsheng.

Li Chengsheng smiled and nodded, as if an unknown trick was about to be exercised again...... (To be continued......)