Since the construction of the arrow tower, Yuan Jun would shoot arrows at Cao Jun's side every day.

Cao's soldiers hid out of the range of arrows, and it was only at night that they poured fuel on the ground when Yuan Jun couldn't see clearly.

In the first two days, Yuan Jun would also shoot rockets at Cao's side to ignite the oil.

On the third day, Yuan Jun didn't do that.

It would take more than ten days for the digging battalion to dig through the tunnels, so they didn't need to spend arrows on these useless things.

Yuan Jun did not shoot any more rockets, but Cao Shuo ordered a lot of torches to be thrown at the fuel.

The flames rose again.

Seeing this scene, Yuan Jun on the dirt slope was dumbfounded, and he didn't know what Cao Jun wanted to do.

After receiving the report, Yuan Shao also ran up the dirt slope with Guo Tu and others.

Looking at the place where the fire was blazing, Yuan Shao asked, "Is our army really not archery?" ”

"Back to Yuan Gong, no!" A lieutenant replied.

"Who lit the fire?" Yuan Shao asked again.

"It was Cao Jun who lit the fire himself." The lieutenant replied, "We also wonder how they picked up the torches themselves. ”

"Not good!" Guo Tu suddenly burst out.

"What's wrong?" Yuan Shao furrowed his brows and asked him.

"The soil on the ground becomes very hard when it is burned by fire." Guo Tu said: "There are three days in a row, but I am afraid that the digging battalion will not be able to open up the ground at all." ”

Yuan Shao's mouth opened slightly: "Could it be that I made a big mistake by ordering the soldiers to set fire?" ”

"How could Yuan Gong make a mistake." Guo Tu hurriedly said: "If Yuan Gong doesn't order the fire, when the digging battalion digs through the tunnel, and our soldiers have not had time to drill out, the enemy will order fuel." I don't know how many of our soldiers will be burned and roasted to death at that time. ”

Guo Tu said this, Yuan Shao felt better, but he was still bored in his heart.

Cao Jun poured oil on the ground, and no matter what he did, it seemed to be very unfavorable to Yuan Jun.

Yuan Shao was frowning and looking at the burning flames, Guo Tu pointed forward and shouted, "Yuan Gong, look, what is that?" ”

Looking in the direction of Guo Tu's finger, Yuan Shao saw dozens of cars appear behind the flames.

So they're cars because they have four wheels.

Dozens of cars came to a stop only a dozen paces from the flames.

Behind every car, Cao Jun was busy with something.

Just as he didn't know what Cao Jun was going to do, suddenly Yuan Shao saw those cars eject huge balls.

The ball was wrapped in hay, or perhaps oil on it, and it passed through the raging flames and was instantly ignited into fireballs.

Fireballs whistled down the dirt slopes.

Just when Yuan Shao was still stunned, a fireball hit the arrow tower not far from him.

The tower was hit by a fireball, and the sawdust flew sideways and fell.

Dozens of fireballs flew up the dirt slope, and one arrow tower after another was smashed and collapsed.

It was only then that Yuan Jun on the dirt slope realized that something was wrong.

"Protect Yuan Gong!" Guo Tu shouted, escorting Yuan Shao to run down the dirt slope.

The archers of the Yuan Army, who were still flying a few days ago, have been smashed by the fireball.

The people on the tower ran down, and the people on the dirt slope also rushed down the slope.

Yuan Jun was in a mess, but Cao Cao, who was watching from afar, laughed and was very proud.

Pointing to the dirt slope that had caused him countless troubles, Cao Cao said to Guo Jia on the side: "Yuan Benchu didn't know what to think at this time. ”

"Yuan Shao must have been surprised in his heart, I don't know where Cao Gong got so many powerful weapons." Guo Jia said: "Childe's whimsical ideas really did not live up to Cao Gong's expectations. ”

"Today, I let Yuan Shao learn a trick." Cao Cao said proudly: "You don't have to be strong and strong to fight, it depends on who can give birth to a son!" ”

With his hands on his hips, Cao Cao looked up and laughed.

He was smug like a naughty child.

Cao Shuo, who was directing the thunderbolt to attack Yuan's army, heard his laughter and looked over here.

Seeing Cao Cao's arrogant appearance, Cao Shuo was suddenly full of black lines.

There's such a daddy...... It's a shame......

Dozens of thunderbolts projected countless boulders, and Yuan Jun's arrow towers on the dirt slope collapsed one by one.

In just half a day's work, the arrow towers standing on the dirt slope have become piles of messy wooden chips.

After the Thunderbolt stopped, it took a long time for the rising flame to fade away.

Cao Shuo ran over.

When he arrived at Cao Cao, he clenched his fists and said, "Father, there is not a single arrow tower left of the enemy, and all of them have been killed by thunderbolts. ”

"I see it." Cao Cao said: "Today's battle is your first achievement. ”

Looking at the place where the last flame was extinguished, Cao Cao instructed everyone, "Come with me to see the stone that Zi melted." ”

"It's not so much a stone as a whole brick." Cao Shuo said: "There were three consecutive days of fire, and even if the Yuan family's digging battalion tried its best, it would be impossible to dig a hole in that place. ”

"Let's take a look." Cao Cao waved his hand.

"Father." Cao Shuo hurriedly stopped: "The fire is only extinguished, the ground must be very hot, it's not too late to wait for a while." ”

"It's good!" Cao Cao asked Cao Shuo, "Can the thunderbolt hit the Yuan family's military camp opposite?" ”

"I'm afraid not." Cao Shuo said: "The Yuan family's military camp is behind the dirt slope, and our army can't see their specific location at all, not to mention that the range of the thunderbolt is not as good as that of the catapult, it is just relatively accurate." ”

"I also want to Yuan Shao and let him know that our Cao family is not easy to provoke." Cao Cao said: "Do you want him to go on like this? ”

"If my father really wants to do this, it's better to come by surprise." Cao Shuo said.

"Divine soldiers descending from heaven?" Cao Cao asked, "What do you mean?" ”

"It is to send elite soldiers to fall from the sky." Cao Shuo said: "Although the number of people is not too large, it can also make Yuan Jun chaotic for a while. ”

"What are you going to do?" Cao Shuo's proposal aroused Cao Cao's interest, and he hurriedly asked.

"We expected that Yuan Jun would come down from the ground, but Yuan Jun could not have thought that our army would go up from the sky." Cao Shuo said: "I wonder if my father has ever heard of flying kites? ”

"Flying kites?" Cao Cao looked at him suspiciously.

"Actually, it's a kite." Cao Shuo said: "It is impossible for an ordinary kite to support a person to fly over the dirt slope and fall into the Yuan army's military camp, but we can build a machine for catapulting kites. As long as the elasticity is enough and the wingspan of the kite is large enough, we can send a group of soldiers to fly into the Yuan army camp. After the soldiers landed, they didn't need to kill Yuan Jun more, as long as they set fire everywhere, they would definitely bring great turmoil to the enemy. ”

"Sounds interesting." Cao Cao asked, "How long will it take?" ”

"Although I have this idea, I have not yet put it into practice." Cao Shuo said: "I don't know if I can really bring the soldiers to the sky after it is built." When my father asked me how long it would take, I couldn't answer. ”