The black liquid was extremely thick, but under the attack of the powerful internal force, it still turned into a drop of rain and fell from the sky. Pen "Fun" Pavilion www.biquge.info

All the masters standing on the wall and tower, their faces changed, they didn't know what these things were, and they didn't dare to let them fall into the camp at all.

For a while, the palm qi and sword qi flew together, knocking all these liquids away.

Cui Yu's complexion changed drastically, and when the barrel burst open and the black liquid appeared in the air, he recognized at a glance what these things were, these were all crude oil.

That is, oil. If all these things fall into the camp, without even the other party's intervention, the entire camp can be burned to ashes.

"We must not let these things fall into the camp, which is extremely flammable oil, and if we fall into the camp, we will be burned to death. ”

In this world, although some people have discovered this kind of thing, it has never been taken seriously by people, so it is extremely rare in the Tang Dynasty.

Cui Yu's words made everyone change color.

If there is any most painful way to die in this world, then being burned alive can definitely be at the top of the list.

At this time, even those masters above the congenital level are standing on the wall tower, looking at the sky tightly, for fear that some fish will slip through the net and fall into the camp.

This wave seemed to be a tentative attack, all the barrels were shot down by the masters of the Tang army, and none of them fell into the camp, which was beyond their imagination.

However, this was only a tentative attack after all, and they had never thought that all of these things could fall into the camp, but none of them reached their goal, which surprised them a lot.

However, people's internal strength is limited, and if you can block a wave, then five times, ten times, who can guarantee that these people have not made mistakes.

For a time, a steady stream of wooden barrels was thrown out of the steppe army.

The sky was full of barrels flying and obscuring the sky.

The masters in the Datang army have condensed their spirits to the extreme, for fear of missing one.

Cui Yu frowned tightly, no, it can't go on like this. God knows how much oil these steppe barbarians have prepared, and if the bombardment continues like this, who can guarantee that they will never make a mistake.

However, just when Cui Yu was in a hurry, the roar everywhere suddenly stopped.

The walls were full of masters wheezing violently.

Cui Yu looked over and found that the carriage that followed closely behind the catapult of the steppe barbarians was empty, and there was no barrel full of oil left.

In the Tang army, seeing this scene, a shout of excitement suddenly broke out, and even Cui Yu's frowning brows were a little looser.

From the sky, the entire camp was fifty paces away, and it had become a black world.

The viscous oil spread all around the camp, and even gathered into thin streams.

Some masters, because their internal strength was almost exhausted, saw that there were no more oil barrels in the steppe barbarians, and they couldn't hold on any longer, so they just sat on the city tower and gasped for breath.

However, at this moment, there was an uproar among the steppe army, and groups of archers came out from all directions, and one of them had a strong bow and a bunch of flames burning on the arrows.

Cui Yu wondered what kind of trouble he could bring to himself if he didn't fall into his camp because he ignited them now.

A trumpet sounded, and one by one, the steppe cavalry rushed straight ahead, and when they were two hundred paces close to the oil field, they shot one flaming arrow after another.

Cui Yu watched all this quietly, he didn't send someone to stop it, he just wanted to stop it, and he couldn't take it as an example, because there were too many people rushing out.

Even if all the masters here become marksmen at this time, killing two birds with one stone, there will always be fish that slip through the net.

All it takes is one rocket to fall into the oil, and the entire oil field can be set on fire.

So Cui Yu didn't do that useless work.

One after another, the fire fell into the oil without hindrance, and in an instant, the entire oil field suddenly turned into purgatory, and the raging fire suddenly burned. The flames were three feet high.

The blue-blue flames emitted a strong heat, just standing on the wall, and the heat surged like a huge wave.

Thick black smoke soared into the sky.

Cui Yu frowned, although the oil burning was thick with smoke, there would definitely not be such a big smoke, it seemed that they didn't know what to add to the oil. It can kick up such a big black smoke.

At this time, it was the beginning of winter, and the grassland was unusually cold, and Zou Ran ignited such a large sea of fire, which immediately made the wind around the Datang military camp howl, and a large stream of smoke was blown into the Datang military camp.

"Hold your breath!"

A shout sounded, the martial artists below the refining and refining qi could not achieve the realm of holding their breath at all, although the innate martial artists could also hold their breath, but it was all for a short time, and after a long time, they still had to breathe air.

"The soldiers of the innate realm and below, all go downstairs. Cover your mouth and nose with wet water. Do not inhale fumes. ”

Cui Yu commanded loudly. At this time, he was not spared, and his face was blackened by black smoke.

Hearing Cui Yu's order, everyone groped their way down the wall, found the water source, and according to Cui Yu's order, wet their clothes, and covered their mouths and noses desperately.

Billowing smoke soared into the sky. Cui Yu frowned tightly, he didn't believe that the other party wouldn't just want to disgust them with smoke when he did this.

They are not ordinary people, for ordinary people, this smoke may be deadly, but for these warriors, except for blurring their vision and hindering their breathing, it has no great effect.

"Breathe?" Cui Yu was stunned, he seemed to have caught something, but it was like a moon in the water, he could see it, but he couldn't touch it, which made him extremely depressed.

The whole person kept walking around the walled floor.

Through the dense smoke, Cui Yu could see that the grassland army did not move at this time.

Time passed little by little, and the sky soon darkened. But for some time, whenever the flames outside the camp were a little smaller, a burst of oil barrels would be thrown at them by the steppe barbarians.

Since seeing such a terrifying power of oil, the masters on the wall tower naturally did not dare to slack off, and shot down those oil barrels one after another to prevent them from falling into the Tang army.

However, in this way, the flames of the oil burning zone, which had been slow to build, became hot again, and the fire became strong again.

What's worse is that the grassland barbarians did this to tell the Tang army that they still had a lot of oil, but they would not tell them when the oil would fall, so that none of the masters on the wall tower dared to go down the wall.

They're going to burn them alive.