The gate is open, the city tower is empty, and the scene is very strange from a distance.

Chen An'an pursued the small force that disturbed them to this place, he looked at Hengyang City, his expression was very solemn, the people guarding the city were obviously aware of their arrival, the camp outside the city had been cleared, only a messy place remained, but now there was no intention of defending the city, and there was even a small team of people digging a pit outside the city wall......

"Go, there are a few places to settle the pot and cook rice."

Chen An'an is a battle-hardened general, who has only lost to His Royal Highness King Fu in his life, and the rest of the battles have been fought more than 100 times, all of which have been victorious.

He knows very well that he must not be greedy for merit on this battlefield, he will never look down easily because the reputation of the opponent's main general is not obvious, you must know that a person who can take Nanchang, Changsha and Hengyang one after another is by no means not a good stubble.

Now that the enemy is putting on such a posture, it is a replica of the empty city plan, but Kong Ming's empty city plan is fake, but who knows if this person's empty city plan is true or false?

Now they don't know how many soldiers there are in this city, and they must be caught off guard if they enter rashly, even if it is a lion fighting a rabbit, they must know how big the rabbit is.

Half an hour later, the next person came back and said that there were about 1,500 pots and stoves.

There are more than 1,500 stoves, roughly calculated that there will be about 150,000 people, no more than 170,000, and no less than 130,000.

After having a plan in his heart, Chen An'an was silent for a while, then raised his hand and waved down.

A team of more than 100,000 people quickly approached Hengyang City, but the only thing Hengyang City did was to close the gate and throw sand sacks down from the city tower, and seal the city gate.

Seeing this scene, Chen An'an was a little puzzled, but seeing that there was no bed crossbow on the city wall, he once again ordered people to be careful to approach the city wall, and stopped near the moat.

Looking up, a head was sneakily revealed on the city tower, and after a few glances, he shrank back.

"I'll count three, two, one."

Song Beiyun gestured to the soldiers crouching behind the battlements, and then each took out a bag of explosives tightly tied with linen.

Behind them was a slingshot nailed out of wood with cow tendon on it, which looked very rudimentary, but it was well anchored to the ground and kept it from slipping under its own weight.

Seeing the army below slowly approaching, after Song Beiyun counted down three times, everyone fixed the explosive bag on the big slingshot, and took out the fire fold with the other hand.

"I'll take another look."

Song Beiyun poked his head out and took another look, but this time an arrow did fly over his scalp.

He quickly retracted his head and said with a curse in his mouth: "Damn...... Open the perspective and shoot in advance? ”

However, although he was so surprised, Song Beiyun still roughly saw their location clearly, the nearest vanguard had arrived at the moat, and probably maintained a relatively safe distance, a safe distance that would not be harmed by heavy objects, boiling water, and golden soup.

The soldiers who followed were probably 1,500 meters away, and were converging in this direction.

"When they're at their most dense, light this line of fire and throw this thing out!" Song Beiyun instructed: "Remember, after lighting the fire, you have to throw it out immediately!" ”

Although it is black powder, the power is far inferior to TNT, but the charge of a burden is almost fifteen kilograms, and the power of fifteen kilograms of black powder should not be underestimated, not to mention that this time it is materialized, wrapped in broken porcelain, pottery and iron slag, after the explosion, the range of damage is very considerable, the effective killing is about 20 to 30 meters, and the fragments can kill and injure unprotected personnel about 50 meters away.

The shock wave within ten meters can effectively solve the heavy infantry wearing foot armor, in the era of cold weapons, such a product is definitely very effective against the infantry weapon, although the effect will not be very good after the enemy reacts and disperses, but the huge sound and light effect can also form an effective deterrent effect on the place.

After silently calculating the speed of the place, Song Beiyun probably felt that it was okay, and he hurriedly beat the drum three times in front of him.

All the soldiers behind the battlements began to move, and they all set up their explosives packs on the large slingshots, and they moved in unison.

Chen An'an, who was far away under the city, heard the three-way drum on the city gate building, and muttered a little in his heart, and he didn't know what the city tower was selling, after all, other people's families started wars with their robes on the head drum, the second drum out the blade, and the third drum was equal to the charge trumpet, which came up to be the three-way drum, and then there was no movement......

Soon, however, a second drum beat was heard, this time again in a short, rapid two-drum beat.

After the sound of the drum at two o'clock, all the soldiers at the head of the city picked up the fire folds and moved in unison.

Song Beiyun checked back and forth with his waist, and after finding that there was no problem, he rubbed it in front of the big drum with a sliding step, and knocked it with all his might.

In an instant, hundreds of soldiers ejected the explosive packets with the fuses almost at the same time, and the large slingshot threw the explosives packets into the range of 150 to 200 meters, counting the parabolic distance.

Before the rebels could react, the first explosive package exploded, and the thunderous sound, combined with the scattered shrapnel and shock waves, caused a group of soldiers to be overturned in an instant.

Then, the explosion of the explosive bag was connected, and countless rebels were blown up.

At the same time, after the commander on standby at the far end of the dammed lake saw this scene, he immediately ordered someone to ignite the huge medicine bag that had been prepared long ago, and by the time the fuse was over, dozens of people here had already run away two or three miles away.

Immediately afterward, a sound like a stinging thunder sounded from the distance, and even a violent tremor was produced more than ten miles away.

Chen An'an, who was caught off guard by this wave, was urgently ordering the troops to retreat, but before they could start a queue to escape, they heard a rumbling sound in the distance, and the movement was as if the Mongol cavalry was rushing towards the morning sun, and the momentum was extremely amazing.

Chen An'an raised his head to look upstream, but found that there was a fog ahead, and the sudden fog made him a little surprised, but now he couldn't scruple a lot, so he could only mobilize the soldiers to retreat.

But tens of thousands, and wounded soldiers. Where can this be quickly retreated, and just as they were running back, a large group of archers suddenly appeared on the city wall and began to pour arrows, which caught Chen An'an off guard.

But before he could react, the yellow flood in front of him was already roaring and rushing.

The speed of the flood was much faster than the speed of the march, and the 30,000 men of the forward force were submerged in the monstrous water in an instant.

At this time, the morale of Chen An'an's department suddenly dropped to a low point, and Chen An'an finally realized the intention of the other party's main general, and in his heart, he couldn't help but sigh at the other party's ruthlessness.

And at this time, he also realized what the people he had seen before had dug so many pits in the ground, and the moment the water did not pass through the tunnel, a large number of backflows and whirlpools would be generated, and even the most proficient soldiers in water could not get up from such a complex water potential.

Chen An'an gritted his teeth and looked at the troops who had lost their armor, gritted his teeth and gave the order to retreat ten miles.

He still has 100,000 people left, but the other party is already flooding the city, and the opponent is obviously unable to compete in endurance.

At this moment, Chen An'an saw from a distance that the eight-bull crossbow had been moved out of the city, and the crossbow arrow was still tied to something that would explode before......

After another series of explosions, Chen An'an's morale was completely crushed, and a large number of fleeing soldiers began to storm the order of the barracks, many people did not even understand what was happening, but they were frightened by the monstrous flood in front of them and the things that would suddenly explode, and they only cared about retreating.

But at this moment, there was a sudden shouting of killing from the end of their rear troops, and Chen An'an hurriedly climbed to take a look, but found that tens of thousands of people were roaring and killing this side several miles away.

Without any intention, in an instant of contact, the Chen Security Department, which had already been demoralized, almost collapsed at the touch of a button, and the ambush soldiers who stayed outside the city also appeared from all directions at this time, and the sound of killing was everywhere, and the Chen Security Department, which was already in chaos, was now in a mess.

"Whole army! Servicing! Runaway kill! ”

But no matter how loud his voice was, it couldn't be louder than the explosion of explosives in his ears and the rumbling torrent in front of him, and Chen An'an's voice was drowned out on the noisy battlefield in an instant.

Although Song Beiyun was unable to go out of the city to support at this moment, a large number of explosives packages had already exploded in the middle of Chen Security's team with the crossbow arrows of the Eight Bull Crossbow, and they could scumbag wherever they went.

This made the Chen Security Department, which was originally superior in numbers, now divided into several sections, but the ambush soldiers gradually converged, and the whole world seemed to be left with only the Red Turban Army shouting and killing.

Many people were chased by the Red Turban Army to the river, and after the battle, they had no choice but to jump the Xiangjiang River on the north slope, and some people stuck to the high ground, but this height happened to be the elevation angle projection range of the Eight Bull Crossbow, and this turned around and it was another wave of bombing.

The Red Turban Army below seemed to be approaching here, Chen An'an gritted his teeth and glanced at Hengyang City with resentment, and with a wave of his hand, he led the rest of the people to retreat towards the south.

Song Beiyun was also standing at the head of the city at the moment, looking at the rolling river outside the city, and then seeing the battlefield in the distance, he finally breathed a sigh of relief, this first round finally saved the city, if it weren't for this big flooded city, it was really unclear who would have killed the deer today.

After all, when the people reacted, the killing range of the black flame was only ten feet, and their life was not easy.

"Go, play the flag, let the brothers outside gather the spoils, don't pursue, be careful."

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Today is another chapter, today the family went out to pick peaches, I said I don't go, I won't go, my mother has to pull me and say let me go to exercise, tossing around and feeling a little heatstroke. Joke...... Can I still exercise in this kind of weather with my physical fitness?