Cheng Shengnan's archery is terrifying with precision, and the arrow is not missing.

Every arrow will inevitably take the life of a Tibetan soldier.

In addition, the number of soldiers in the Tang Dynasty was twice that of the Tubo soldiers.

The results of the two sides shooting each other can be imagined.

The number of Tibetan soldiers is getting smaller and smaller.

In the end, only seven or eight people remained, and they fled in disarray.

Cheng Shengnan did not chase after him, led his own soldiers, and returned quickly.

Halfway through, the Tang army that came to greet them quickly returned to Songzhou City.

This scene finally put Li Su at ease.

After capturing Agundin, the Tibetan dragons were leaderless, and it was believed that they would soon be able to force them to retreat.

However, at this time, Li Su found that the three major armies of Tubo were in the rear and were in hot pursuit.

It seems that when Agundin came, he was ready to miss.

And the successor is designated in advance.

This Tibet is quite difficult to deal with.

Li Su's face couldn't help but become solemn.

After a short time, all the Tang soldiers withdrew to Songzhou City.

The soldiers all stepped on the walls of the city to defend themselves.

Cheng Shengnan ordered people to escort Agundin directly to the city wall.

In case the Tibetan army really attacked the city, it would be possible to use Agundin at that time to let the Tibetan side throw a rat into a trap.

Soon, the Tang soldiers, all ready.

At this time, the 30,000 troops of Tubo also rushed to the city of Songzhou.

At this moment, the personal soldier who had followed Cheng Shengnan on the expedition and was wounded by an arrow suddenly turned black.

A mouthful of black blood spat out from his mouth, and the whole person fell.

"It's not good, it's poison on the arrow!"

Of the fifty soldiers who followed Cheng Shengnan on the expedition before, more than a dozen of them were wounded by arrows.

At that time, the wound was a little itchy, and they didn't care.

At this time, I was horrified to find that the arrow was actually poisonous.

Moreover, their general, Cheng Shengnan, was also wounded by an arrow.

In fact, most of the arrows were aimed at Cheng Shengnan.

Their target was originally Cheng Shengnan.

At this time, Li Su's face also became difficult to look at.

He couldn't help but say to Cheng Shengnan: "General Cheng, you go to recuperate immediately, and leave it to me here." ”

Cheng Shengnan gritted his teeth and said, "It's okay, I can still withstand it!" ”

"At this time, I must stay on the walls."

As he spoke, Cheng Shengnan stumbled and almost fell to the ground.

Li Su helped her in time.

"General Cheng, I'll leave it to me here, to ensure that Songzhou City is foolproof, you go to bandage and detoxify."

Cheng Shengnan is still reluctant to go down to the city.

But her eyes were black for a while, and it was really hard to hold on.

Staying on the city wall will only add to the chaos.

Cheng Shengnan said helplessly: "Your Highness, everything is handed over to you!" ”

Li Yu nodded heavily and said, "With me here, don't worry." ”

"Quick, come on, help General Cheng down."

Immediately, two pro-soldiers came and helped Cheng Shengnan down the city wall.

In the Tang Army, there are military doctors.

On the side of the military doctor, there is naturally an antidote ointment.

However, as for whether the poison of Tibet can be cured, it is still difficult to say.

And Li Su can't take care of so much for the time being.

At this time, Cheng Shengnan was not there, and he had to command the Tang soldiers to resist the attack of the Tubo army.

Li Su found that Cheng Shengnan was poisoned and fell, and the morale of the Tang soldiers suddenly decreased a lot.

Li Su couldn't help frowning slightly.

Now, it is necessary to find a way to make the Tibetan side frightened and withdraw the army.

Li Su is self-aware, although he has the courage of a bully, but he has no experience in commanding an army at all.

Before, after they got Songzhou City, they once felt that they could defend for a month relying on Songzhou City.

However, that was on the basis of their judgment that the Tibetans would not attack the city regardless of casualties.

But now, the situation is completely different.

Now, their lord Agundin has been captured.

They can be said to be a fiasco.

However, now the female generals of the Tang Dynasty have also been poisoned.

And once they break Songzhou City, kill the female general of the Tang Dynasty and capture the prince of the Tang Dynasty.

Well, although they have suffered heavy losses, they are not unacceptable.

Give it a go, and turn your bike into a motorcycle.

And for Li Su.

There is not much left of the goods he exchanged for the value of the silk before.

The rest, for example, does not have much effect on coping with the current situation.

Li Su frowned and thought for a long time, but did not come up with a good solution.

Under the city, the Tibetan soldiers prepared a large amount of timber and were setting up siege equipment under the city.

These timbers are all prepared by them in advance.

In about half a day, you can assemble enough ladders and siege equipment.

When the time comes, they will be afraid that it will be difficult to resist.

Li Su looked at the mountains of wood under the city, and then looked at the good sun in the sky, and suddenly, his brows furrowed, and he thought about it.

Li Su immediately ordered his soldiers to go to the city to collect bronze mirrors, and the more they were, the better.

In a short time, there were soldiers who collected thousands of bronze mirrors.

Next, Li ordered people to fix these bronze mirrors together with strips of cloth, iron wires and other objects according to a certain shape.

After a while, a huge bronze mirror with a square face, facing outward and concave inward, was assembled.

If it is a person of later generations, it can naturally be seen at a glance that what Li Su made is actually a rough concave mirror.

Concave mirrors reflect sunlight, concentrating sunlight at one point, heating up sharply enough to ignite paper and wood.

In fact, the effect of using a glass mirror is naturally better.

But the Tang Dynasty in this era does not have glass mirrors.

Li Su could only settle for the next best thing and use a concave mirror.

Next, Li Su, who was dressed in a black magic robe and held a magic war, appeared on the stage.

Seeing Li Su, which Tubo soldiers under the city, they couldn't help but tighten all the chrysanthemums.

At this time, within Tibet, after propaganda, a consensus had been reached.

This so-called Tang Heavenly Master is not true at all, he is just a liar.

All his previous methods have been cracked.

However, these Tibetan soldiers were still skeptical.

After all, many miracles of this Tang Heavenly Master are difficult to explain.

Next, Song San once again held a small horn and appeared on the stage.

Song San raised his small horn and shouted loudly: "Listen to the Tubo soldiers under the city, you have angered my Tang Heavenly Master!" ”

"Next, I, the Tang Heavenly Master, will first send down the heavenly fire and burn your siege equipment."

"Then, I, the Tang Heavenly Master, will also rain down the heavenly thunder, and everyone who dares to stay under Songzhou City will all die under the heavenly thunder."

After that, Li Su ordered a few soldiers to lift up the concave mirror made of bronze mirrors, and then constantly adjust their orientation.

After a while, the angle was finally adjusted.

The reflected sunlight is gathered at a single point.

And Li Yu also chose a stack of the thinnest and driest wood piles that looked the best to ignite.

Next, Li Su began to practice.

The Tubo soldiers under the city all showed horror on their faces.

Even the movements in his hands began to slow down.

On the city wall, even those Tang soldiers were actually skeptical.

Because they are their own people.

They all know, where is there any Tang Heavenly Master?

It's His Royal Highness King Liang at all!

The first few times, the actions of His Royal Highness King Liang, they all knew that it was fake.