Ye Zhong was not interested in knowing how to dig tunnels in the city at all, because his tunnels didn't want to dig into the city at all, he only needed to dig under the city walls, and these tunnels were not used for soldiers to pass through, but for placing explosives.

At the entrance of the tunnel, the master builder from the Ministry of Engineering came out of the dirt with a shovel, looked at everyone, and said proudly: "I knew that my mapping would not be wrong, and I found its roots."

With a bang, he threw the shovel to the ground, "Just put the explosives in your head later, as for how much to put in it, that's a matter for the Ichijin Research Institute."

"Don't worry, we'll take care of the rest!" Several researchers from the Yizhen Research Institute stood up triumphantly, these days, their treatment in the army can be described as wind and rain, and they are offered to them up and down like bodhisattvas, but in the Yizhen Research Institute, they are just playing tricks. However, the Yizhen Research Institute is extremely mysterious to most of the people outside, like among the many generals present, only Ye Zhong has followed Gao Yuan.

One by one, the small bags tightly tied with oiled paper were carefully held, and they were all soldiers from Jicheng who were Ye Chong, looking at their cautious appearance, it was like holding a treasure worth ten thousand gold.

However, this thing is in the hands of the personnel of the Yizhen Research Institute, but it is very different, carrying one in one hand and clamping one under the flank, so he bent down and got in, this casual appearance, Ye Chong, who knew the power of this thing, saw that the corners of his eyes jumped endlessly.

At the same time, the same drama was being played out in front of the three tunnels, and a full 1,000 kilograms of high-power explosives newly developed by the Ichijin Research Institute were sent down the tunnels under the city walls.

Everything is ready, only the east wind is owed.

"The whole army retreats a mile!" Ye Zhong looked at the several generals beside him and ordered.

"A mile back?" Meng Chong was stunned.

"Yes, step back a mile, and order all the soldiers to plug their own ears, as well as the ears of the war horses, and even more so for me. Stay for a while, it's going to be a bit loud." Ye re-remembered the real things he had done secretly in the valley, and his face showed a look of palpitation.

"Got it!" Although he didn't understand why Ye Chong gave such an order, Meng Chong still didn't ask too much, turned around and went to convey the order.

The Han army retreated like a tide, leaving only a few sparse men on top of their original positions. And on the wall of Kangping City, Zhou Yafu, who saw this qiē, was inexplicable, what new tricks did the Han army want to play? Let's say they retreated, but they only retreated a little distance, and they put on a look of being ready to strike.

"Someone, tell the general about the situation of the Han army outside the city." Zhou Yafu summoned a personal soldier and said in a low voice: "The Han army may be engaged in some conspiracy again."

Looking at the few Han soldiers left above those positions, Zhou Yafu had inexplicable palpitations, above those positions, it was the location where the Han army dug the tunnel, but under the monitoring of the city, the other party's tunnel did not dig into the city, but stopped when it reached the city wall, probably because it ran into the stones under the city and could no longer dig in, and the city was already ready, and the opponent gave up halfway.

What are they trying to do?

Ye Chong looked at the researchers of the Yizhen Research Institute who stayed in the three positions, they were holding torches in their hands, and they were looking back in the direction where they were, Ye Chong nodded and said in a low voice: "Let's start!"

The trumpeter next to him raised his trumpet and blew a loud trumpet. Hearing the sound of the trumpet, the researchers in the three positions simultaneously stretched out the torches in their hands to the long rope extending from the tunnel, watching the fire burn strongly and extend inward, they dropped the torches, spread their legs and rushed towards the Han army's main formation.

Ye Chong's eyes stared at the Kangping city wall, his eyes flashed with excitement, if he succeeds today, then in the days to come, any city will no longer be an obstacle to the advance of the Han army, as Han Wang Gaoyuan said, the appearance of explosives will completely change the pattern of war on this continent.

What did King Han say? By the way, King Han said that the emergence of hot weapons will be the end of the era of cold weapons.

In the city, Qu Wan listened to the statement of the soldiers who came to report the news, and he was also confused, since Ye Chong arrived, the Han army's actions were very strange, and the attack seemed to be worse day by day, as if it was a secret operation to cover up, but if this secret operation was just to cover up their digging tunnels, then it would be too much to underestimate him Qu Wan. If he can capture Kangping City by digging a tunnel casually, can he still defend Kangping City for half a year?

"Let's go, let's see, what tricks this Ye Chong is playing again!" Qu Wan put on his helmet, took off the saber hanging on the wall, and strode out.

As soon as he stepped out of the gate, an earth-shattering thunderclap suddenly sounded, and the entire Kangping City seemed to be shaking in this loud noise, trembling, bending a stumbling, almost falling to the ground, just barely standing firm, the second sound, the third sound came again, this time Qu Wan no longer stood firm, was directly shocked to the ground, fell a big horse on his stomach, and followed his own soldiers, no one could stand firmly, all of them were shaken to the ground in this three loud noises.

Huge smoke and dust rose from Kangping City, and the sunlight seemed to lose its brilliance at this moment, and was blocked by countless smoke and dust, and the sky seemed to be dark.

Qu Wan was shocked, slammed the ground, jumped up from the ground, his ears buzzed, and everything in front of him seemed to be shaking, he looked at the sky blankly, and muttered: "What is this, what is this?"

"Heavenly punishment, heavenly punishment!" A pro-soldier seemed to be a little shocked and lost his mind, while turning in a circle, he lost his mind and yelled, Qu was furious, drew his sword out of the sheath with a choked sound, and choked the crazy pro-soldier to the ground, "Go, go to the city wall, go to the city wall."

Outside the city wall, although the Han army withdrew from the original foundation and a mile of land, but at this time, it was also completely chaotic, although Meng Chong issued an order to block the ears, especially the ears of the war horses, but many people only did some symbolically, and some even just randomly touched a handful of weeds on the ground and stuffed them in their ears, and from the first loud noise, the war horses blew up their nests.

Even if the ears of the war horse are blocked, but there is no special plug, such a simple stuff is obviously unable to make the sensitive war horse become deaf, this earth-shattering loud noise, so that all the war horses out of control. All of a sudden, the war horse was scurrying around, and no matter how good the cavalry riding skills were, it was no longer possible to control the war horse under the crotch at this time, and the war horse rushed out of the place, neighing and scurrying around frantically. And the next two loud noises made the war horse almost crazy, not to mention the knight on the horse, it was not easy to let himself ride on the horse at this time.

The cavalry was in a mess, fortunately, the cavalry were arranged on both wings of the attack formation, and they could not shake to the central formation, but in the middle of the Chinese army, tens of thousands of foot soldiers who had been ready to attack, at this time, their bodies were also shaking, their faces were drunk, and three huge plumes of smoke and dust rose up with a loud noise, which not only destroyed the walls of Kangping City, but also made the Han soldiers who were preparing to attack outside dumbfounded.

Ye Chong glared at Meng Chong fiercely, Ye Chong had already prepared, he and the war horse under the crotch of the soldiers he brought were stuffed with thick cotton in their ears, and there was a loud noise, the war horse under their crotch was just uneasy to tease the hooves, and on the other side Meng Chong was a lot of wolves, he just stuffed a few strips of cloth into the ears of the war horse, at this time the war horse was frightened, and as soon as he flicked his hooves, he was unprepared and lifted off the horse, if it weren't for the quick eyes of the soldiers around Ye Chong, the two knives came out together, and his horse was killed on the spot, I'm afraid that Ye Chong will also be messed up by him here.

"Don't hurry up and restrain the soldiers!" Ye Chong tore off the cotton in his ears and shouted angrily at Meng Chong.

"Ahh Meng Chong opened his mouth and sighed a few times, only then did he realize that he still had cotton stuffed in his ears, and he ripped it off, looking at the messy scene, his face turned blue.

"Blow the trumpet, blow the trumpet, the officers of the various departments, restrain the non-commissioned officers, and return to their own formation." He jumped to his feet and shouted and ran away, looking at the place where the pillar of smoke rose as he ran, "What is this, what is this?"

The smoke and dust dissipated, and in front of the Han army, the original towering Kangping City's 100-meter wall had completely collapsed, and on that section of the city wall, Zhou Yafu, the general of the Chu army, who was standing there and was ready to command the battle, also disappeared with the three explosions at this moment.

It is no longer possible to describe the miserable appearance of this section of the city wall, because it is preparing to defend against the attack of the Han army, and the city wall is densely packed with Chu soldiers, and they are in these three loud noises, and along with their generals, they also turned into a burst of blood rain in this smoke and dust.

Broken walls, broken arms, and stumps fell from the sky like raindrops, spilling over the surrounding area.

Qu Wan rushed quickly in the direction of the city wall.

He stopped abruptly, and in front of him, there was a bright light, and the walls were gone.

With a click, something fell from the sky and fell in front of him, it was a jet-black severed hand, and as this severed hand fell, pieces of dripping flesh fell in the air like raindrops.

Outside the city, Meng Chong managed to restrain the soldiers who were also panicked in Kangping City, and at this time, the Han army's usual and strict military discipline finally came into play.

"The king has given me a divine weapon to help me break the city. Dahan Wansheng!" Ye Chong's big sword in his hand was raised high, and he shouted angrily, and the hundreds of personal soldiers around him repeated Ye Chong's shouting in unison.

"Long live the king, long live, long live!" The soul of the Han army finally returned to their bodies, it was the king, and it was their king who gave them an incomparably powerful divine weapon, helping them to break through Kangping City, which they had not fought for half a year. With Ye Chong's shouting, they waved the weapons in their hands and shouted frantically.

"Siege!" Ye Chong's legs grabbed the horse's belly and rushed towards it.

"Wan Sheng!" Tens of thousands of soldiers erupted into earth-shattering shouts and rushed towards Kangping City. (To be continued......)