Liu Chan laughed when he heard this: "Hahaha, the return cannon is extremely heavy, and these pieces of wood need to be assembled before they can be regarded as return guns." If you assemble it in the camp, how do you bring it over? ”

"I see!" When Hou Luohou heard this, he suddenly realized. He is a Hu man, and he does not understand the mysteries of those organs of the Han Dynasty at all.

"Although the return cannon has been built, it needs stones to exert its power, so I would like to ask the leader to collect ...... for me."

"This is wrapped in the lower body to ensure that the stones are endless." Hou Luohou didn't wait for Liu Chan to finish speaking, he immediately agreed, and picked up stones, but it was just manual work. As long as Liu Chan doesn't let him attack Wei, it would be fine.

Liu Chan said with a smile: "Okay, the leader is really a bold person, early tomorrow morning, I also ask the leader to go around to find stones and transport them, until the horse is broken, the stones cannot be broken." ”

"Your Majesty, rest assured."

The next day, Hou Luohou sent a large army to collect stones, while Liu Chan ordered people to assemble the return cannon.

At noon, a hundred return cannons were assembled, and a large number of stones were also sent from Xianbei's side.

However, Liu Chan was not busy ordering the attack on Mayi, although there were stones, but there were not many, if the supply of stones in the middle was cut off, then the defenders of Mayi would have a chance to breathe, and they would repair the city, and the hard work would be in vain.

Therefore, it is necessary to ensure that there are enough stones, and their reserves can ensure a continuous offensive against Mayi, and then they can attack Mayi.

By the next day, the stones outside the Han army camp were piled up.

Liu Chan and the generals stood at the gate of the camp, watching Xianbei continue to transport giants, Guan Yu said with a smile: "Hou Luohou sent 40,000 soldiers and horses to collect stones, only one day to find, the collected stones are already piled up, these reserves, presumably enough to take the Mayi." ”

"Hmm!" Liu Chan bowed slightly, although the combat effectiveness of the Xianbei cavalry was not very good, but these physical tasks were done well.

At this moment, a Xianbei general who had transported stones came over and reported to Liu Chanyu: "Your Majesty, just now my soldiers and horses found a stone mountain nearby, and they only need to mine stones, and they don't need to look around, so the supply of stones will not be cut off. ”

"Good!" Liu Chan smiled, turned his head to Guan Yu and ordered: "Second uncle, Shi Yuan is sufficient, pass on the order, you can attack Mayi!" ”

"No!"

Half an hour later, a return cannon was pushed out of the Han army camp, and the Han soldiers also carried stones along with the return cannon.

Wei Yan had often used Huihui artillery to attack the city before, so this time to attack Mayi, Liu Chan also let Wei Yan command.

Seeing that the Han army used Huihui artillery to attack the city, Qin Lang did not dare to let people gain a foothold in the city, but let the soldiers stay under the inner gate, while Qin Lang and other generals gathered in a tall building in the city to observe the situation.

"Throw stones, put them!" After Wei Yan led his troops to adjust the angle of the return cannon, he ordered to throw a boulder at Ma Yi.

A hundred return cannons were all concentrated at the north gate, and the periphery of the north gate was impassable, and with Wei Yan's order, fifty boulders suddenly flew up from the sky, and then fell towards the head of Mayi City.

I only heard a rumbling sound, and the stones fell on the head of the city of Mayi, although there were not many, but the destructive power was incomparable.

The city wall of Mayi is built by rammed earth, and the naturally generated soil is called raw soil, and the artificially treated soil is called rammed earth, such as loess and water after being pressed, it is a kind of rammed earth, which is denser than raw soil, from the Neolithic Age to the later fifty or sixty years, it is used as a large-scale building material.

Although the rammed earth wall is strong, but it is not as good as the fired bricks and solid stones, the historical Xiangyang City, is a city built of bricks, and its city can not withstand the return cannon of the Mongol army, not to mention the rammed earth made of Mayi City.

One by one, the boulders fell, and the loess of Mayi City flew one after another, and one of the boulders happened to fall on the wall and smashed the wall down.

One hundred return guns, Wei Yan used fifty to throw boulders at a time, fifty stones fell, and the other fifty threw boulders, so as to ensure that the offensive would not stop.

Within two hours, the walls of Mayi City were smashed into potholes, and even several huge cracks appeared.

Liu Chan led the generals to watch the battle in the rear, and seeing that the power of the Huihui cannon was so huge, Liu Chan couldn't help laughing and said: "This Qin Lang still doesn't know the power of the Huihui cannon, it seems that tonight, my army will be able to enter Mayi." Generals, lead the rest of the cavalry and prepare to pursue the enemy. ”

"No!" The generals will take the command.

In the city of Mayi.

Qin Lang and the others gathered on top of the tall building.

Originally, Qin Lang was quite confident in the city defense of Mayi, but with a few rounds of stone bombardment, Qin Lang's confidence was completely shattered.

The power of the return cannon is really great.

"The power of the return cannon is so huge, I'm afraid that the support of Ma Yi will be broken in less than a day."

"Hey, how did Shu come up with such a thing."

"The top priority now is to find a way to withdraw to Yanmen."

"Where will the Shu army let us withdraw so peacefully, we still have 20,000 infantry troops."

"Hey, it was good to retreat last night, but now that the army is withdrawn in a hurry, you can't take away the grain and grass. That's two months' worth of us. Even if he retreats to Yanmen, I'm afraid that the life of Yanmen will not be easy. ”

The generals' words made Qin Lang irritable: "Okay, don't argue." The power of the return cannon was indeed not expected by Ben Jiang, but Ben Jiang was also thinking about my Great Wei. It's a pity that now Ma Yi can't resist the return cannon, so he can only retreat to Yanmen Pass.

General Liang Xi, you quickly go to rectify the infantry army, and later you lead the infantry army first, and I and Budu Genshan will lead the cavalry behind. As for the grain and grass, you can bring as much as you can, and if you can't take it away, you will burn it all for me and don't leave it to the Shu army. ”

"No!"

Due to the urgency of time, Wei did not have time to prepare too much, so he could only carry the necessary weapons, armor, and food by himself, so as to not affect the action, as for the rest that could not be taken away, it could only be burned.

The Wei army hoarded a large amount of grain and grass in Mayi, in order to resist the Han Dynasty, but due to Qin Lang's decision-making mistakes, most of these grains and grass that were enough for tens of thousands of troops for two months were burned.

Don't underestimate these grains and grasses, the reason why Yuan Shao was defeated in the Battle of Guandu was not because of the destruction of Wuchao's grain and grass, without these grains and grasses, even if these 60,000 soldiers and horses returned to Yanmen Pass, they would have to starve, maybe someone would starve to death, and within a year or two, they would not be able to get out of Yanmen Pass.