Guo Jiajia is clever and scheming, but Cao Cao and his advisers can also be seen.

However, although fire attack is the best policy, Zhao Hui doesn't want to use it.

"But just tens of thousands of people ambushed and scared them away." Zhao Hui sent someone to inform Zhao Yun quickly.

But it was noon, and Zhao Yundianwei received a reply from Zhao Hui.

"Give me the order to roll out the catapult."

In Chang'an, he had already commanded a battle of clay pot throwing, and this time Zhao Yun was familiar with the road.

The main force is still Zhao Hui in the back, Zhao Yun and Dian Wei's vanguard troops, whether it is the number of catapults or the number of clay pots, it is not very much.

But it is enough to deal with the ambushes in the mountains and forests.

Three catapults were pushed out.

The artillery crews were in place, these were familiar hands trained in the artillery battalion.

Although everyone has been exposed to it during training, they have all seen the power of gunpowder.

But this was the first time they had used it against the enemy, and they were inevitably excited.

They still remember the shock they felt when they first saw the gunpowder explode, and they will never forget it for the rest of their lives.

"Hahaha, I want to ambush Lao Tzu and let you see the power of gunpowder." The gunners were excited, but they were also relaxed.

I was excited because I could finally see the enemy trembling under the gunpowder.

Relax, because they themselves are used to it.

They already knew that as long as they threw the clay pot out before the lead burned out, there would be no problem.

Don't be nervous, the more nervous you are, the easier it is to make mistakes.

During training, some people were injured by the explosion, and their bodies were stiff because they were too nervous.

The fuse was ignited, and three black clay pots smashed towards the mountain forest.

The position that was aimed at was the location of the spies who had detected the Cao Liu coalition army.

However, in the first round, there were still some deviations.

Rumble!

Rumble!

Rumble!

Three huge explosions sounded in the mountains and forests.

In the forest, the 40,000 Cao Liu coalition troops who were ambushed, everyone heard it.

"Thunder?"

Because the clay pot was a little off, and they were in the woods, they couldn't see the clay pot flying over, nor did they see the picture of the clay pot exploding, but they heard three loud noises, like thunder before a rainstorm.

Many of these ordinary soldiers don't know that Zhao Jun already has gunpowder.

In order not to affect the morale of the army, whether it was Liu Bei or Cao Cao, the news was banned, and only a few generals knew about it.

"Strange, how can it thunder in such good weather?"

Many soldiers looked up at the sky, blue and cloudless.

I really can't understand why Thor is there.

"It's not just thunder, I just feel like the ground is shaking." Someone spoke.

Guan Yu and Zhang Fei and Xu Chu's faces were all very ugly.

Especially Guan Yu and Xu Chu, they had seen the gunpowder explode with their own eyes, and they would not be mistaken about this voice.

"Zhao Jun, use that thing." Xu Chu looked at Guan Yu.

Zhang Fei said: "Is that the clay pot you talked about before?" ”

He hadn't seen it, but he had heard it so many times that his ears were almost calloused.

"Yes, third brother, retreat." Guan Yu said.

Zhao Jun even used gunpowder, and they absolutely couldn't hold it.

If we continue here, it is estimated that 40,000 people will be killed.

"No, I'd like to take a look. Retreat first. Zhang Fei said.

He had heard it countless times, but he hadn't seen it with his own eyes, and he wanted to see how terrifying the things that Guan Yu and Xu Chu talked about.

"Third brother, it's too dangerous to stay, that's not manpower, that's Tianwei." Guan Yu said.

"Second brother, you go first, don't worry about me." Zhang Fei had never seen it, and he was fearless in his heart.

It's just a little louder, and he's just as loud.

"Third brother, now is not the time to be brave." Guan Yu said.

When the arrows come at them, they can block them even if they can't dodge them.

But those clay pots fell, and unless they hid behind boulders, it was possible and alive.

The clay pot fell, and they couldn't block it with their weapons, even if they moved a foot or two to the side, they were still in the explosion range.

Unless they can rush out more than a dozen feet away in an instant.

Even so, it is still possible to be shot and injured by a burst clay pot.

Zhang Fei stays, whether he can survive or not, in Guan Yu's opinion, depends on his luck today.

Luckily, the clay pot didn't land on top of his head, and he survived.

If he is unlucky, the clay pot falls right on top of his head, and it is ten lives, and he will have to be explained here.

"Second brother, don't worry, can he still blow up the entire hidden mountain?" Zhang Fei was not afraid: "I won't stay here." ”

Boom, boom, boom!

Three more explosions.

"Then be careful yourself."

Guan Yu is not persuading Zhang Fei, Liu Bei is not here, even if he is the second brother, it is difficult to persuade Zhang Fei.

These three explosions were closer to them.

Guan Yu looked in the direction of the explosion, and could already see the smoke and dust after the explosion, and there seemed to be fire.

This is a dense forest, and when a clay pot explodes, it is easy to ignite the surrounding vegetation.

"Withdraw!"

Guan Yu and Xu Chu did not hesitate, and immediately retreated from the mountain road south of the Hidden Mountain with 40,000 people.

In the process of retreating, Guan Yu and the others heard several explosions.

At this time, those soldiers also understood that this was not thunder at all.

Although the news of Liu Bei Cao Cao's exquisiteness spread in the army, there was no impermeable wall after all.

Among the 40,000 troops, there are those generals who know, and the deputies of those generals will also know, and then there are those who are powerful, elite soldiers, they may also have heard a sentence or two.

At this moment, Guan Yu and Xu Chu retreated with them all the way, and some voices quickly spread among the army.

Zhao Hui didn't plan to set fire to the mountain, so Zhao Yun stopped for the time being after throwing more than a dozen clay pots.

Then several teams of spies were sent into the mountains and forests to search.

Soon, the spies who went there returned.

"Report, the enemy forces in the forest have all retreated."

Zhao Yun did not immediately lead all the horses through Bowangpo, but took thousands of people into the mountain to extinguish the fire.

More than a dozen clay pots exploded, but many trees were still set on fire.

Fortunately, it has just exploded, and now it is spring and summer, and the fire is not big and can be controlled.

The water source is at the foot of the mountain, and the efficiency of extinguishing it with water is too slow, so after Zhao Yun took thousands of people into the mountain, he dug an isolation zone for more than a dozen fire sources.

The big trees that were set on fire, after a few hours of burning, the fire became smaller.

And Zhang Fei also secretly left the hidden mountain.

It's just that when he left, his face was also difficult to calm down.

He finally understood why Guan Yu was about to retreat with his men and horses as soon as he heard the explosion.

This is still just a dozen clay pots, if there are hundreds or thousands, Zhang Fei feels that he can really blow up the entire hidden mountain.