The offensive and defensive battle of Wuguan officially began in the early morning of 15 June.

The first to launch an attack is more than 10 "flying stones" of more than 200 steps outside the city, this kind of siege equipment that is said to be made by Fan Li is more than high, several people operate, can throw out the stones with a large head, although the hit rate is extremely touching, but as long as the number is enough, it is enough to smash the defenders of the city head dare not raise their heads.

What's more, after the ink scholar was slightly transformed, the range of the rebels' flying stones was much farther than that of the official army, and the dozens of flying stones of the northern army behind the city could not pose a threat to them.

But they were enough to prevent the enemy from massively massing close to the walls—flying stones didn't break the thick rammed earth walls, but they were enough to break the heads of heavily armed soldiers.

Fortunately, the hit rate of the flying stones is too low, and the two sides come and go, but most of the flying stones unfortunately miss the target, and there are very few dead, and only the real unlucky ones will be hit off their heads by a stone.

Another kind of siege machine is a lot more accurate, that is a huge crossbow machine, made by the ink, originally Heifu wanted to call it "big yellow crossbow", but the sergeant often likes to call it "big black crossbow", which means "made by the ink, used by the black king", so it is a common name

This kind of crossbow is so large that it requires two people to operate, and it can shoot directly at the city gate from a hundred and fifty paces, and it is accompanied by a huge tremor, and the tip of the spear seems to penetrate the wood......

It was clear that the city gate was the main target of the enemy's aim, and from morning to noon they launched round after round of offensives, and under the cover of a rain of arrows and rushing cars, the brave men approached the city gate.

When Wang Li was behind the city, he could also hear the roar of the wood, which was undoubtedly the battering ram hidden under the attack cart into battle, and the wooden door creaked like the groan of a dying giant, although it was heavy.

Fortunately, he had completely blocked the city gate with stone strips and masonry, so that even if the wooden gate was completely destroyed, it would not be possible to pass through, so as to prevent the most vulnerable area of the Wuguan from being broken by thieves.

For the whole day of the 15th, although the city gate was tested several times, the rebels did not attack the city with ladder ants, probably realizing that the success rate was not high, and the northern army was defending against the wall, which was a great advantage. Attackers often make great sacrifices but fail to achieve their goals.

So in order to break through the city, the attacker must use all his ingenuity!

After standing on the watchtower above the city wall and observing for a while, Gong Yiyun came down and told Wang Li: "General Wang, all this is an illusion made by Heifu in order to trick our army into going all out to defend the city gate. ”

"The real battle of this battle is underground!"

Wang Li was very vigilant: "Did the cave master hear the movement? ”

"Not yet."

"But what the villain saw on the watchtower, the enemy was covered by a tent hundreds of steps away, more than a hundred steps long, and the figures behind him were crowded, and there were inexplicably more earth and stones gathered, piled up into a mountain of earth, and muddy muddy water often flowed out, in my opinion, this is a sign that the enemy is digging a crypt......"

He said firmly: "They want to attack the city in the cave!" ”

……

The war forced people to use their brains, in order to overcome the obstacles of the city, as early as the Spring and Autumn Period, the fire and water attacks were all in turn, and Mozi and Lu Ban, the two enemies, even imagined the method of making wooden kites from the air.

Since the brain holes have been opened to the sky, the thick earth under the feet will naturally not be ignored.

In this way, the method of "cave siege" appeared.

It is said that more than 300 years ago, Zheng Guo, Zheng Zizhan, and Zi Chuan took 700 cars to attack Chen, and they dug tunnels to enter Chen City at night, and then fell into it. Since then, the method of digging tunnels to attack the city has begun, and by the time of the Warring States Period, this method has been relatively common, and for this technique, Mozi also wrote a special article "Preparation of Points".

How to detect that the enemy is digging a tunnel, in addition to building a watchtower to carefully observe the enemy's situation, you also have to use your ears:

Dig a deep pit next to the wall, enlarge the urn in the pit, cover the urn with leather, and then send someone to listen carefully, and if the enemy digs a tunnel, you can find the movement.

Sure enough, the next day, the "cave master" lying in the cold water urn reported the situation:

"Mr. Gongyu, the rebels dug several tunnels, leading to the city wall in turn, and then stopped again......"

Now the public loss can be basically determined.

"He used the method of burning tunnels in the caves! Bind the pillars and set fire to destroy my city! ”

The cave city technique can be subdivided into two categories: one is more primitive, digging tunnels through the city walls, leading directly into the city, and soldiers entering the city from the tunnels to destroy the enemy, but this method can only be used for attackers and defenders, and cannot be discovered by the guards, otherwise a few people are sent in through the narrow tunnels, purely to give the opponent's head.

Another method is more commonly used: setting fire to the pillars in the tunnel, causing the roof of the tunnel to collapse and destroying the foundations of the wall, in this way the city wall is destroyed!

The rebels should obviously be the latter.

It is very clear in "Preparing Caves" that if the enemy digs tunnels to attack the city, the defenders should also meet the enemy directly, dig tunnels in the direction of the enemy's caves, attack the caves with holes, and destroy the enemy army underground!

So the defenders also fought-for-tat, and according to the position determined by the cave master, they began to dig the tunnel horizontally.

Most of the men sent by the Northern Expeditionary Army to dig the tunnels were miners from Tonglu Mountain, who were sent to the front by Wei Jing, and they were promised that if they had completed the vote, everyone would be knighted, and Hefu provided them with the best shovels and so-called "sapper shovels".

People are like a group of moles in the dark, digging with iron tools in the dark underground, sometimes unlucky to encounter rock mass, which is better to say, just go back, sometimes dig into the underground water vein, pour back for muddy water, there is a risk of death.

And the worst scenario is to dig a hole well, but the front is suddenly empty, and the enemy comes, armed with a sword, and then the brave wins when the narrow road meets.

A tunnel battle unfolded five feet underground, cruel but no one recorded the experience, after all, those closed places, holding the opponent's blade with a red face, and even fighting to the death with teeth and nails, there was no heroic atmosphere, and the passion of a strong man.

There is only suffocating tension and discomfort, and cruelty.

The area was narrow, and the tunnels were often blocked by those who died in battle, and as the enemy discovered their tracks, a long tunnel dug with great effort was abandoned, and if the attackers did not retreat in time, they could be drowning in smoke......

In this way, like a rat's hole, after blocking the three tunnels, the cavemaster reported that the enemy seemed to have suspended the excavation of the tunnels.

It seems that the attack has been repelled, but it is not clear when the enemy will come again, or the Mo family itself came up with a solution: each well mouth sends a dog on duty, with "the location of the acupoint, and the hole is dug to welcome it", the dog's vigilance is very high, and once it finds that there is movement, it will bark.

"Why don't you have a black dog?"

Gong Yi glanced at the dogs sent from the rear, and asked casually, the people who guarded the city were often superstitious and needed to use black dog blood to break the magic barrier.

"Your Majesty ordered to slaughter the black dogs in the whole pass."

The Shaofu officials from Xianyang shook their heads, and some wizards said that "there is a son of heaven in the southeast", and the second emperor was afraid to refer to Heifu, thinking that this would greatly discourage Heifu's luck, and also called this operation "sweeping black".

The Shaofu official muttered: "It is unknown whether the spirit of the black thief has been taken away, but the price of dog meat in Xianyang has plummeted recently......"

"Ridiculous." Gong Yi shook his head: "It's ridiculous. He began to wonder if he had made the right choice.

However, the enemy seems to have given up digging the crypt and attacking the city, and instead brazenly approached the city wall with a roof covered with raw cowhide, and under the cover of its heavy wooden roof, sent men to start digging a pit at the foot of the wall, erecting the top pillars every time it was deep, and digging deeper and deeper.

How could Wang Li let them get their wish? Immediately let the arrows and stones fall, and even let the daredevils fall from the ropes, braving the flying stone arrows sent by the enemy, repelling this wave of attacks, and the small pit dug by the enemy suddenly under the city was also blocked by the bricks and rubble......

On the evening of the 16th, the rebels stopped their attacks again, and the wounded soldiers, after trying to recover the corpses of the city without success, withdrew to the camp, and it seemed that the spirit was not as strong as it had been at the beginning.

"The siege of the cave has no results, and now the black thieves have nothing to do, and I am afraid that tomorrow I will let everyone attack with ants!"

Wang Li was afraid that Heifu would not be hard, he was defending, he was attacking, and in the hard-fought battle, Wang Li had enough confidence to kill and injure enough rebels.

Gong Yu was a little worried: "Although the dogs under the city have not barked, it is possible that the thieves have dug many tunnels by taking advantage of the noisy chaos during the day, and opened under the city walls, and then suspended their actions, so the cave master has not heard of it, so we must not be on guard." ”

"What if he secretly burned one or two places? How can the soil of the Triad collapse so easily? Wang Li disagreed.

At this moment, Hou Wang came to report, saying that the thieves remembered a bunch of torches in the camp and marched forward in formation, and there were even military officials shouting and ordering in front of them, as if they were really going to attack overnight......

"Night attack?"

When Wang Li came to the city, he was not worried but rejoiced: "The black thief is really arrogant, thinking that we are defenseless, doesn't he know that a night attack is even more disadvantageous to the attacker?" I think he has nothing to do, and he ...... stupid."

However, before Wang Li's words were finished, he felt a flash in front of his eyes, but saw a scream, a blazing spark, suddenly exploded above his head, that is, over Wuguan City!

It was like a spark struck by a blacksmith striking iron, flying in all directions. It's like thirty-seven years, countless meteors falling from the sky, looking scorching and dazzling, but fleeting......

When the incident happened suddenly, Wang Li opened his mouth wide, and everyone in the city looked at each other, and they all saw surprise in each other's eyes.

There is also a bright light that has burst back into the bloom.

The sparks came again, and this time the Wuguan guards saw it clearly, they rose into the air from the rebel camp a hundred paces away, and with a burst of white smoke and pungent breath, they flew diagonally towards the head of Wuguan City, and exploded above it.

This time it's no longer a singular number, but a few, dozens, and hundreds! First there was a strange scream, and then there was a crackling sound of explosions, which startled the dogs in Wuguan City who were prepared for acupuncture to bark wildly.

In the bombardment of this fire and rain, Wang Li was still standing, and the thousands of defenders who had just rubbed their eyes to meet the enemy, and even the 100,000 troops who were waiting for the rest of the Wuguan were all stunned like chickens, some were slumped on the ground, and some knelt down and kowtowed.

"It's Chu Yue witchcraft!"

In this unprecedented spark, chaos and panic swept through the city, the soldiers at the head of the city could not hold the spears in their hands, the people even hugged their heads and scurried, trying to avoid them, and some people begged for mercy and let out a cry of horror.

"Is it really the punishment of the demons? Was it borrowed by the Ink Writer? ”

Wang Li lost his voice for a while, and it was difficult for him to calm down, and he retreated step by step, and the ink master often said "Ming Ghost", today's strange fireworks that ordinary people can hardly imagine, could it be related to this?

Suddenly he remembered something, and cried out:

"Quick, quickly slaughter a few black dogs, splash the city with their blood, and break the rebels' evil arts!"

"Mr. Gongloshe!"

The Shaofu official next to him was anxious and afraid, crying with a sad face: "Didn't I say it, the black dogs have been slaughtered by His Majesty, let alone Wuguan, there is not a single black dog in the hundreds of miles of the pass!" ”

……

PS: The second chapter is in the afternoon.