Guo Tu's approach is undoubtedly useful.

The tower, which originally took more than ten days to build, was erected on the earthen slope in just three days under his auspices.

Yuan's archers climbed the tower and condescendingly fired arrows at Cao's army.

The high wall, which could have played a protective role, was useless in front of Yuan Jun at this time.

Hiding under the wall, Cao's soldiers raised their shields high and used them to shield the arrows falling from their heads.

Standing in the distance, looking at this scene, Cao Cao's face was very ugly.

He asked Xu Chu, "How long will it take for Zirong's thunderbolt to be built?" ”

"I'm going to ask." Xu Chu replied.

Cao Shuo was watching a group of craftsmen build a thunderbolt at this time.

Unlike catapults, which are fixed to the ground, thunderbolts have four wheels.

What's even more prominent is that there is a thick wooden board at the front of the car.

A piece of copper was wrapped around the plank, which was used to shield the arrows from flying in front of you.

"Childe!" Xu Chu walked over quickly: "Gong Cao asked me to ask how long it will take for the thunderbolt to be built." ”

Turning around and grinning at Xu Chu, Cao Shuo said, "It's going to take three days." ”

"The enemy's arrow tower has been erected, and our soldiers are being shot by them." Xu Chu said: "Gong Cao is already very anxious, so he asked me to ask." ”

Cao Shuo thought for a while and said, "I'll go and explain to my father in person, Brother Zhongkang is afraid that he won't understand." ”

He shouted to the craftsmen who were building the thunderbolts: "Hurry up, the soldiers in front of you are waiting for you to vent their breath!" ”

"Don't worry, Childe." The craftsmen shouted, "Hold on!" ”

"Brother Zhongkang, let's go!" Cao Shuo greeted Xu Chu.

Walking with him to Cao Cao's side, Xu Chu asked, "Childe, can the thunderbolt really knock down the enemy's arrow tower?" ”

"It should be." Cao Shuo said: "There is no practical application, and I don't know exactly how far it can go. ”

"What if I can't hit it?" Xu Chu said with some concern: "The soldiers all rely on thunderbolts to save their lives!" ”

"If you can't hit it, you can only redevelop it." Cao Shuo said: "You must know that it is not so easy to build new weapons. The Thunderbolt wasn't in use, and I really don't know exactly how far it could go. ”

Cao Shuo's answer made Xu Chu feel a little uncomfortable in his heart.

The whole army waited for the thunderbolt to knock down Yuan's arrow tower.

If it doesn't work out then, morale will be greatly defeated!

The two came to Cao Cao.

Cao Shuo clenched his fists and bowed down and said, "Father is looking for me? ”

"How long will it take for your Thunderbolt to be built?" Looking at the tower of the Yuan army, which was firing arrows, Cao Cao asked.

"It's going to take three days." Cao Shuo replied.

"The enemy's arrow tower has been used, and our soldiers are being shot by them, and you told me it will take three days?" Cao Cao turned around, frowned and asked Cao Shuo.

"Three days I'm still early." Cao Shuo said: "The construction of the thunderbolt is inherently time-consuming, and it has to be tried after construction, and it really can't be done without three days. ”

Cao Cao also knew that Cao Shuo was telling the truth, but he still felt a little anxious.

"I'll give you two days." Cao Cao said: "Two days later, all the Thunderbolts were put into use. ”

"Father's forgiveness." Cao Shuo said: "It's not that I don't want to put the thunderbolt into use as soon as possible, it's just that according to the deadline given by my father, I really can't complete it." ”

"Why is it so hard for you to do something?" Cao Cao said with an angry face: "If you can't finish it, I'll let someone else do it......"

"Cao Gong." Guo Jia on the side reminded in a low voice: "If you don't let Gongzi do it, who else can take over?" ”

was stunned by Guo Jia's question, and Cao Cao's face turned pale.

"Father, it's actually very easy to solve." Cao Shuo said: "Let the soldiers retreat beyond the range of the enemy's bow and arrow, their arrow towers are fixed on the dirt slope, I still don't believe that they can carry the arrow towers to walk?" ”

Guo Jia also helped on the side: "What Gongzi said is that it is better to let the soldiers retreat first, and if the Yuan army launches an attack, we will deal with it again." ”

"Zhongkang!" Cao Cao thought for a moment and said to Xu Chu: "Pass the order and let the soldiers retreat." ”

Xu Chu left in response.

Cao Cao said to Cao Shuo again: "I will only give you three days, if the thunderbolt cannot be used after three days, you can come and see you!" ”

"I will urge the craftsman as soon as possible, and also ask my father not to put too much pressure on me." Cao Shuo said: "Building under pressure, I'm afraid that the thunderbolt will not be as effective as imagined when the time comes." ”

"You ......" Cao Cao was blocked by him and didn't know what to say, and sighed heavily.

"Cao Gong, I'll accompany my son to see the thunderbolt." Guo Jia saluted Cao Cao and said, "Let's see if there is anything that can help." ”

"Feng Xiao went to watch, and I was relieved." Cao Cao said, "Go ahead." ”

Accompanying Cao Shuo to leave, Guo Jia whispered to him: "How can Gongzi do such a stupid thing and actually confront Cao Gong in person." ”

"If I don't resist, does Guo Gong have a better way?" Cao Shuo said: "My father is already very anxious, Guo Gong can reason with him, I, as a son, I'm afraid there is no reason to say." ”

"The war is unfavorable, and it is understandable that Cao Gong is anxious." Guo Jia said: "Childe doesn't have to take it to heart. ”

"How could I possibly take it to heart." The corner of Cao Shuo's mouth tugged: "No matter what you say, he is my father." Knowing the son is more than the father, I can't share the worries of my father at this time, and I am also a son of man in vain! ”

"Childe understands the general and the righteousness." Guo Jia arched his hand to him and said, "I admire it very much, but it's just a thunderbolt ......."

"Could it be that Guo Gong is also urging me?" Cao Shuo said: "The structure of the thunderbolt is complex, and it is very easy to make a frame, but some of the details cannot be completed in a day or two. I promised three days, which is indeed beyond my ability. I'm not sure if I'll be able to get out of the Thunderbolt after three days. ”

Listening to Cao Shuo's words, Guo Jia's face was not very good.

Yuan Jun's shooting arrows down from the arrow tower was definitely not the only purpose, they must still have a backhand.

Guo Jia just didn't think what Yuan Jun would do......

"Has Guo Gong ever wondered why Yuan Jun built those arrow towers that seem to be of little use?" Cao Shuo suddenly asked Guo Jia.

"Actually, I'm thinking about it too." Guo Jia said: "Our army withdrew from the range of the enemy's bow and arrow, although it avoided being killed by the bow and arrow, but that place was completely out of our army's control......

Speaking of this, Guo Jia was stunned: "They want to ......"

"Be careful." Cao Shuo said: "By controlling that place, Yuan Jun will be able to drill out of the ground. There are so many of them that if we let them succeed, we won't have any chance! ”