Cai Zhao and the imperial court have made a lot of determination to destroy Yang Sutang in one fell swoop!

Emperor Feng had seen Yang Xutang back then, and knew that this son was a dragon and phoenix in the world. When he didn't use it for himself, he moved to kill. Later, after Yang Xutang returned to Yuezhou, he devoted himself to teaching and did not participate in external battles, which was enough to let him go.

Now that he has become a hegemon, he will surely threaten his throne by sitting on his throne.

Therefore, Emperor Feng must exterminate Yang Xutang when he has not yet become a big climate.

In the city of Xuanzhou, the situation was very critical, and Yang Sutang ordered the city wall to be strengthened.

When Cai Zhao first attacked the city, he used siege vehicles and used round stones to attack the city wall.

Yang Xutang had to use the large bow and ballista he had just developed, which could shoot three giant arrows at a time, and the arrows were made of steel heads, which were extremely powerful.

Cai Zhao's tall and sturdy siege vehicle immediately collapsed under the fire of giant arrows.

Such a counterattack also caught Cai Jun off guard, and he could only retreat.

Cai Zhao failed in the first siege and soon reorganized for the second siege.

In the second siege of the city, he called on the infantry to push the crash car and hit the city gate, the engineers took a ladder, and the forward soldiers swooped forward and climbed up one after another using the ladder.

He relied on the large number of people and the momentum was huge, and he used the sea of people to create momentum to attack the city!

Seeing that the vanguard soldiers had climbed the city wall, they saw that the crash car was about to break through the city gate.

Suddenly, on the city wall, six soldiers in a group, they stood on the city wall with an iron bucket, only to hear the flag commander waving the flag, an order: fall!

The bucket poured towards the vanguard of the ladder, and out of the bucket was an amber liquid

The forward soldiers who rushed around on the ladder didn't know what was going on, but they felt that the liquid smelled unpleasant, which was not only uncomfortable on the body, but also made the ladder slippery, and many forward soldiers fell off the ladder!

Immediately afterwards, another row of crossbowmen took their positions, all holding bows and arrows in their hands, in the posture of archery.

The flag commander gave another order: Ready, shoot!

Countless arrows were fired!

Something magical happened!

Those arrows and feathers shot at the vanguard soldiers who were doused with liquid, and they actually caught fire!

The fire spread so fast that they quickly turned into fireballs!

It turned out that the arrows of the crossbowmen were smeared with phosphorus powder prepared by Yang Xutang, and the iron bucket was filled with butter. As soon as the phosphorus powder meets the oil, it will catch fire magnetically.

One by one, countless forward soldiers turned into fireballs, and the ladder also caught fire and fell from the city walls.

Soon the infantry and engineers in the rear also suffered!

As soon as this oil-stained spark encounters combustibles, it will quickly devour all combustibles!

Almost instantly, thousands of infantry, engineers, and strikers were caught in the fire. The soldiers wailed in pain, fled in all directions, and some even rushed into the ranks of archers behind.

Cai Zhao's second siege was a fiasco, and he could only retreat.

Yang Xutang was standing on the top of the city wall, holding a telescope in his hand, and he could see that Cai Zhao's main force was still behind, and he was in the back.

"Sir, Cai Jun has retired." Chai Rong came over and said.

He saw it!

It's just that Zhou Zhao retreated like this, and it was only temporary.

Cai Zhao had to admit that he underestimated the enemy, and he underestimated Yang Xutang.

He originally thought that this battle was nine out of ten, and Yang Xutang was a scholar, no matter how smart he was, how powerful he could be when he came to battle!

Not to mention, he thought that his plan to divert the tiger from the mountain had worked, and he besieged 20,000 Yang troops with 100,000 soldiers and horses, which should be nine out of ten.

A scholar easily repelled his two strong attacks.