"How so? Why is this happening?! Liu Bei saw that the cowhide he spent a lot of money on couldn't stop the rain of arrows of the Han army, and he couldn't help but roar in discoloration, however, he was destined to not get an answer, because no one could figure out what was going on.

No, it can't be said that at least in Guannai, there is one more person who is aware of this change, and he is Zhang Song. At this moment, Zhang Song was walking on the way to Guanhou with two thousand Shu soldiers loyal to him. Last night, when Liu Bei asked him to inspect the military resources, Zhang Song secretly asked his Shu soldiers to smear a special potion on the cowhide in the pass, which was given to him by Ao Lie, and told him to try to apply it to the cowhide and other military resources to defend the city, so Zhang Song asked Liu Bei for his life and automatically took on the inspection work.

In fact, the potion that Ao Lie handed over to Zhang Song, to put it bluntly, is nothing, Ao Lie, who has the knowledge of later generations, knows that leather and the like are afraid of acidic objects, so Ao Lie asked Hua Tuo and Zhang Zhongjing to deliberately develop such a potion according to the method of making vinegar, which retains the acidity of vinegar, but hides the taste of vinegar, and also allows the acidity in the potion to be volatilized to the greatest extent.

Now Zhang Song still has a task to do, which is to try to open the door behind the closure and let Ma Chao's department in. This task was not assigned to him by Ao Lie, Ao Lie just asked him to improvise and do something beneficial to the Han army as much as he could. This task was thought up by Zhang Song himself, he wanted to be valued under Ao Lie's command and seek a place, so he had to do it, and he had to make great contributions. in order to seek a better prospect for himself, so Zhang Song took a risk and led his troops to Guanhou.

But Zhang Song is not a hot-headed person, he knows that there are 50,000 Shu soldiers guarding the pass, and the guards are still able to conquer Zhang Wei and Zhang Wei, who are used to fighting, plus the coordination and command of Fa Zheng, these three people temporarily formed an iron triangle, and it is not so easy to open the gate under their noses. Even if after a period of confrontation, the Shu soldiers commanded by the three of them suffered certain casualties, but it was by no means something that the two thousand people in Zhang Song's hands could deal with, so Zhang Song came to the vicinity of the gate with two thousand people, and did not immediately approach the gate, but in the name of inspection, he stopped not far away, secretly looking for a way to open the gate.

Gaze back to the front of the pass. Under Liu Bei's anger, the Shu generals also fell into a dazed and overwhelmed puzzle, no one knew how Lu Dao could become so fragile and unbearable. It wouldn't be surprising to say that he couldn't stop the red-clothed crossbow, but it would be strange that he couldn't even stop ordinary arrows.

When the Shu generals and Shu soldiers were in a daze. Ao Lie was not in a daze, and gave orders to continue shooting one after another, in the loud voices of Xu Chu and Dian Wei. The crossbowmen of the Han army on the arrow tower and the crossbowmen under the command of Huang Zhong leaned the sharp arrows and crossbows in their hands to Jia Meng, as if these crossbows and crossbows were not easy to make, just like worthless dead branches on the roadside.

Under the cover of the rain of arrows in the sky, Zhang Liao led his troops to smoothly break under the wall of Jiameng Pass, looked up at the eight-zhang high wall, Zhang Liao shouted coldly behind him: "Set up a ladder, quickly!" Taking advantage of the fact that the Shu soldiers are now confused, let's attack Shangguan in one go! ”

The 20,000 Han troops immediately opened to the two wings, divided into hundreds of squads, spread out on the left and right sides of the gate, and put hundreds of ladders on the wall of Jiameng Pass, only to give up the area near the gate, leaving it to the follow-up troops Tai Shi Ci's department, and using the city hammer to hit the gate.

Seeing Zhang Liao rushing to the front of the pass, Tai Shici clenched the brocade tooth gun in his hand, turned his head to look at Ao Lie, and the flames of battle in his eyes instantly burned to the peak. Feeling Tai Shi Ci's hot gaze, Ao Lie smiled slightly, and then nodded to Tai Shi Ci, signaling that he could lead his troops to attack, and said softly: "Ziyi, be careful." ”

Tai Shi Ci handed the gun to his left hand, and his right hand clenched his fist and slapped it heavily on his left chest, telling Ao Lie not to worry with his actions, and then raised his gun and roared: "Brothers, rush!" Under the leadership of Tai Shici, the 20,000 Han troops under him roared, holding a shield in one hand and a knife in the other, and ran towards the front of Jiameng Pass, striving to climb the Jiameng Pass along the ladder in the shortest possible time, and defeat the Shu soldiers who existed there in one fell swoop.

Seeing the top of the ladder emerging from the wall, Liu Bei roared angrily: "What else is there to send? Stab the swallow thief's ladder over Lonely! In Liu Bei's roar, the Shu soldiers reacted, hurriedly picked up their spears, and stabbed towards the top of the Han army's ladder.

The Shu soldiers and the Han army fought each other, not once or twice, they knew that the ladder of the Han army was a little special, and it was not so easy to be stabbed, but since Liu Bei gave the order to die, they could only brave the rain of arrows and try their best to stab the ladder of the Han army. However, the result was still the same as before, no matter how hard they tried, they still failed to overturn the ladder of the Han army, but were killed by the rain of arrows shot down from their heads, and they were embarrassed, and thousands of lives were lost in vain.

But fortunately, with the offensive of Zhang Liao and Tai Shici, the Han army's arrow rain that gave the Shu soldiers a headache finally stopped, which is a good thing, but at the same time it is also a bad thing, the arrow rain has stopped, and the Shu soldiers will not have to die under the sharp arrows at any time, but this also shows that the Han army's siege troops have approached the city wall and began to launch a landing on the city.

Wu Ban and Wu Yi took the lead in shouting: "The Yan army is about to attack the city, everyone prepare as soon as possible, hurry!" Under their shouting, the Shu generals also shouted, commanding their subordinates to do a tight defense, and at the same time, from the military reserves, carrying fire oil and other materials to prepare.

Wu Ban glanced down at the city, and saw that the Han army under Zhang Liao's department had climbed halfway to the cloud ladder, and hurriedly shouted: "Pour fire oil, quickly!" ”

The Shu soldiers immediately poured the fire oil into the oil pot that had already been set up, and lit the firewood under the oil pot, however, in the boiling oil pot, the poured fire oil actually blistered in a moment, and there was a sound of boiling water. Hearing the abnormal sound in the oil pot, Wu Yi came to the side of the oil pot to take a look, and then said angrily: "Bastard! Let you bring the oil here, what are you boiling water doing here?! "It turned out that what the soldiers of Shu poured into the oil pot was not fire oil at all, but pure water.

A group of Shu soldiers who were angrily scolded by Wu Yi innocently handed the oil canister in their hands to Wu Yi, and said aggrievedly: "General, this is the fire oil stored by our army, who knows how Lu Dao suddenly turned into white water......

Wu Yi was shocked when he heard this, personally came to the material distribution center, reached out and took a jar of unopened fire oil, put it under his nose and smelled it, this smell does not matter, Wu Yi was surprised to find that the original oil tank was really clean water! Wu Yi angrily threw away the oil tank in his hand, picked up another jar of fire oil and checked it, and found that the tank was still filled with water! After opening more than a dozen cans one after another, Wu Yi was desperate, and he could already conclude that all the canisters in this batch of oil tanks were filled with clean water!

Coming to Liu Bei's side with shock, Wu Yi lowered his voice and said: "King, there is a problem with our army's military resources, and the oil tank is full of water!" Because the stakes are so high that it may affect the stability of the army's morale, Wu Yi did not make a noise, but could whisper his findings to Liu Bei.

Liu Bei was frightened by Wu Yi's words, and immediately asked, "How can this be?" Have all the other supplies been checked? ”

Wu Yi shook his head and said, "I haven't had time to check yet, so I'll go and check it out." With that, Wu Yi turned around and walked back quickly. Looking at Wu Yi's back, Liu Bei thought suspiciously: I asked Zhang Song to do an inspection yesterday, why is there such a fatal omission? Don't......

Thinking of this, Liu Bei didn't dare to think about it anymore, if it was really Zhang Song who had a problem, or rather, Zhang Song betrayed himself, it would be too dangerous, Jia Mengguan was bound to be unable to save it today, and now Liu Bei's only hope is that Zhang Song did not betray himself, but only a temporary omission.

However, it didn't take long for Wu Yi to turn around, and the hope in Liu Bei's heart was completely destroyed, because Wu Yi told Liu Bei with certainty that not only the fire oil had turned into clean water, but even the other materials had problems, and the rolling wood was all hollow, and it couldn't kill people at all, and the thunder stones were all cracked, even if they could smash the Han army, they would be shattered, and they couldn't play the role of smashing a large piece of it at all......

Liu Bei suddenly understood, why the good cowhide would not be able to resist the arrows of the Han army, it turned out that it was really Zhang Song who was secretly playing ghosts, after the hope in his heart was destroyed, Liu Bei felt a whirlwind of the sky, so he fainted with anger, Zhang Song is a heavy minister he relies on very much, and he is familiar with all the troop deployment in Jiameng Pass, at this juncture, Zhang Song's anti-water, but also a premeditated anti-water, is bound to make Liu Bei's situation more difficult, the Han army is already in front and back, once Jiameng Pass is broken, Where did Liu Bei flee? It's a turtle in an urn.

Gritting his teeth, Liu Bei said to Wu Yi ruthlessly: "Immediately bring a team of people to arrest Zhang Zhigu back!" No, Rectify the Fa on the spot! This traitor, who eats inside and out, wants to put Lone in danger, so he must first exchange his own life! ”

Looking at Liu Bei's hideous face, Wu Yi immediately realized that Zhang Song had become a traitor and had secretly surrendered to Ao Lie's side. So he beckoned a troop and walked down the wall to find Zhang Song's traces.

When Wu Yi was looking for Zhang Song everywhere, Zhang Song had already figured out a way to open the city gate, and he said to a close general: "You took the fire oil we hid and sent it to the gate, just say that the king was afraid of losing after the pass, so he specially asked you to send it, and then you pretended to miss, ignited the fire oil, and caused chaos. (To be continued......)