There is not much gunpowder left in the city, at this time, Xuan Shijing will not waste this few gunpowder, the formula of gunpowder Xuan Shijing knows, but when he arrives in Beisha City, where to find someone who can configure gunpowder?

Configuring gunpowder is also a dangerous job, and this formula must not be leaked out, and it is impossible for Xuan Shijing to configure it by himself, which has caused the current shortage of gunpowder. Pen "Fun" Pavilion www.biquge.info

The stones thrown by the carts at the head of the city successfully hindered the attack of the 10,000-strong army, and the Goguryeo soldiers under the city began to hold their shields above their heads and slowly advance.

"As long as the momentum slows down, it's easy to do." Xuan Shijing smiled: "Pass the order, wait until the enemy army is within one hundred and fifty steps, and then start firing arrows." ”

"Yes!" Chang Le responded.

Walking within a hundred and fifty paces, don't forget that there was a deep ditch more than ten steps wide in front of the city, and these Goguryeo soldiers needed to put the well and engineering ladders into the deep ditch before they could find a way to climb up the city wall.

And in such a short period of time, there was enough time for the defenders to carry out a wave of harvest on these people.

Moreover, Fang Shu's side hasn't started to act yet.

"Master Hou, look, many people down there have already gone down." When Chang Le returned, he stuck his head out, looked down, and found that the Goguryeo soldiers had placed the well diaphragm horizontally on the deep ditch, and one by one began to step on the well diaphragm towards the bottom of the city wall.

"Aim at them, shoot arrows, smash stones, and force them into a deep ditch." Xuan Shijing said.

"Yes."

As long as you fall into the deep ditch, and then want to climb up, it is not a simple matter, now these Goguryeo people are all placed horizontally on the deep ditch, no one will for the people who fell down to erect the well again, standing in the deep ditch, just rely on the siege ladder, then they don't have to do anything else, just let the ladder rescue those who have fallen.

The defenders at the head of the city received Xuan Shijing's order and began to throw stones downward, and in an instant, many Goguryeo soldiers could not dodge and fell into a deep ditch.

Xuan Shijing walked out of the city gate tower, walked on the city wall, and shouted as he went: "Aim at those wells with stones, smash as many as you can, and also, bring up the oil, splash it on those wells, and release rockets." ”

Xuan Shijing ordered one order after another, and the defenders at the head of the city were also executing them in an orderly manner.

Soon, the well that was erected in the deep ditch was either smashed by stones or drenched in oil, and then a rocket shot ignited a raging fire.

Several ladders have climbed the walls of the city of Beisha.

"Zhou Ji, take someone to push these ladders out!" Xuan Shijing shouted at Zhou Ji.

"Yes, Master Hou." After Zhou Ji responded, he took out a few stout long sticks from the city wall, and on the heads of these long sticks, a short piece of horizontal wood was tied, and the two of them had a long stick, and reasonably put a section of the horizontal log tied against the head of the ladder, and then began to push it outward.

The results were very gratifying, and several ladders up the top of the city were pushed out.

Goguryeo's siege vanguard army suffered a big loss under Xuan Shijing's hands, and worked in vain for a while, but the result was that no results were achieved.

"These damned Tang troops, heralds, raise shields in the front row, archers in the rear, release arrows!" The adjutant shouted.

Soon, there was a very rhythmic drum beat from the Goguryeo position, and the Goguryeo soldiers who heard the drums under the city wall raised their shields and protected them above their heads. The archers in the rear of the Goguryeo army quickly bent their bows and arrows, aiming at the head of Beisha City, and then, a rain of arrows poured out.

"Squat down! Raise your shield! Xuan Shijing hurriedly reminded loudly.

"Master Hou, it's dangerous." Seeing such sobriety, Chang Le quickly dragged Xuan Shijing into the city gate tower.

The sound of arrows falling to the ground, the sound of nails hitting the wood, and the sound of hitting the shield reached Xuan Shijing's ears, and as soon as the sound stopped, Xuan Shijing immediately stepped out of the city gate tower with the shield and walked carefully on the city wall.

"The Tang army at the head of the city is hiding, beating drums and marching! The army presses up! The lieutenant led by Goguryeo drew the saber at his waist and raised it high.

There was a stirring drum beat in the army, and at this time, the 10,000 Goguryeo army was all pressed.

The lieutenant general under the city also saw clearly that there were not many defenders in this Beisha City at all, and even if they took advantage of defending the city, in terms of numbers, it was an irreparable wound.

As for the deep ditch outside Beisha City, it has also become a joke in the eyes of this general, and the well and the ladder are erected, and it is still on the ground.

A quarter of an hour later, Xuan Shijing took the opportunity to glance into the deep ditch below.

Almost...... Now there are 10,000 Goguryeo soldiers, and nearly 20% of them are densely packed in the deep ditch.

"Chang Le, send a signal to Fang Shu." Xuan Shijing said.

"Yes, Master Hou!" Chang Le responded, and then hurriedly ran to a corner of the city wall, took out a bamboo tube, placed it on the ground, and lit the lead on the bamboo tube.

"Chirp~~~" A long roar pierced the sky, followed by a crisp explosion.

By the sea, a small camp of the vanguard army.

"It's a signal from Beisha City, brothers, to break the levee!" Fang Shu let out a loud shout, and two hundred people quickly ran to the embankment by the sea and began to blast open the last barrier blocking the sea.

With a loud "boom", the last checkpoint blocking the sea water was blasted open by gunpowder, and the sea water roared, and it was swept into a deep ditch and rushed in the direction of Beisha City.

The power of nature is very terrifying, in order to be able to use this strategy to effect, these trenchers also used a lot of thought, this levee, from the sea to the city of Beisha, the current of the water, it is only a moment.

"Here we are." Xuan Shijing, who was standing on the city wall, was the first to capture the sound of the water hitting in the noisy environment of the battlefield.

"What sound?" The Goguryeo soldiers who rushed forward with swords also found out, but by the time they found out, it was too late.

The deep ditch in front of Beisha City was deep enough, Xuan Shijing looked at it, how could it be more than a zhang, no less, if you want to climb up, except for the ladder and the well, unless you can swim.

The scene under the city wall was very spectacular, as soon as the water rushed over, those Goguryeo soldiers in the deep ditch turned into dumplings in a pot in an instant, and the one that rolled was called a nimble.

In the face of the sudden flood, the deputy general of Goguryeo was also stunned.

What to do?

"Everyone, release the arrows!" Xuan Shijing ordered.

The defenders on the city wall were also shocked by the spectacular scene in front of them, and when they heard Xuan Sejing's words, they quickly turned around, bent their bows and arrows, and fired arrows at the Goguryeo soldiers who were not in the deep ditch.