A scream streaked across the sky, and before the aftermath was over, the ground outside the Flying Fish Pass began to shake. After countless huge explosions, the entire battlefield was filled with billowing black, and the pungent smell of gunpowder was mixed with the stench of burnt meat.

The Shangdang legions that were besieging the city had no idea what was happening, and the big black balls dragging long black flames became the last sight in their eyes. Perhaps, this kind of death is more comfortable than being slashed by the sword, because life and death are only momentary.

The brunt of the attack was the four huge siege tanks, on which at least fifty more shells fell. The siege chariot of the Chengtian Empire was directly smashed into the clouds by this powerful black ball, and there were not even a few pieces of wood chips left. Naturally, the fate of the Chengtian soldiers on the siege chariot can be imagined. Centered on four chariots, the area was almost empty within five hundred feet.

After a long time, a figure suddenly emerged from a thick mound of earth, his face was charred and he was panting heavily. Seeing that no one was standing within a radius of 100 meters, the figure sat weakly on top of the mound and began to giggle.

This person is none other than Kule, the vanguard of the Shangdang Legion who attacked Feiyu Pass. I saw Kule smirk, pointing at Feiyu Pass with one hand and saying, "Stupid emperor, why do you have to attack this ghost place of the Beihai Kingdom? I, Kule, have really good luck in my life, I have seen rolling thunder, and today I have seen so many strange black balls. Hahaha, it's a legendary wooden door!hahaha!" Obviously, the divine power of the black-clad cannon has made Culler completely crazy.

"Report, report to the corps commander. The enemy's siege chariots have been completely destroyed, and its front-line siege forces have been completely destroyed. With that, the calibration gunner stumbled and fell to the ground.

And Bai Hui clung to one of the pillars that was closed, looking surprised. As for the rest of the Beihai soldiers, they staggered and fell to the ground one by one, unable to stand at all. Even though he knew something about the power of the black-clothed cannon, Bai Hui never expected that the secret weapon of this wooden door would be so fierce. At this moment, the entire Flying Fish Pass shook violently because of the fierce shelling, as if the entire pass was about to collapse in the next moment.

"The old man is wrong, Lord Shiraishi's instructions are reasonable, this round of shelling has wasted too much ammunition on our army. Bai Hui hugged the pillar, and his intestines were remorseful. He knew that the consumption of so many precious shells at once could have a very negative impact on future operations.

Of course, the deputy commander of the Menglan Legion had only seen the effect of a black-clothed cannon firing before, so he underestimated the power of the black-clothed cannon, and he didn't expect the chain reaction caused by five hundred black-clothed cannons firing at the same time. It's just that although the spur of the moment of Commander Bai Hui consumes valuable ammunition, its killing effect is still very amazing.

Except for more than 50 shells that landed on the siege chariot at the front, the remaining more than 400 shells flew towards the Chinese army behind Kule, that is, where Chahe Buhua and Subutai were. These "black balls" fell one after another in the dense battle formation, outside the Flying Fish Pass, a large pit with a diameter of more than 100 meters appeared dizzyingly, and the black army, which originally stretched for dozens of miles, suddenly appeared a coherent huge blank, and the casualties could not be counted.

As for the Marshal of the Chengtian Empire, Cha He Buhua, who originally planned to cheat death, after the words "I grass" came out, a black fireball fell near him, so that between the lightning and flint, the leader of the Shangdang Legion only had time to use the power of the sages in his body to form a simple purple defensive cover, and then he was blasted into the sky, and the war horse of * was vaporized in an instant......

The huge shaking of the ground was like the end of the world, and the rear army of the Shangdang Legion saw such a terrifying scene, and their fighting spirit instantly collapsed, and they all collapsed in the form of birds and beasts, and retreated in the direction of Caoyi Valley, leaving behind the wounded soldiers and compatriots who fell to the ground in front of them......

After a long time, Feiyu Pass gradually stopped shaking, and Bai Hui also personally led an army out of the pass to find the enemy. For those Chengtian soldiers who survived the shelling, the Beihai soldiers did not say a word, directly cut their throats, and even set them on fire. After pursuing twenty miles to the west, Bai Hui left a part of the cavalry as a mobile post to reconnoiter the situation of the Chengtian army in the direction of Caoyi Valley.

And those hundred-meter pits that were blown out by the black-clothed cannon happened to be a good place to dispose of the corpses of those Chengtian soldiers, a total of more than a hundred large pits, all of which were filled. Bai Hui looked at a large crater, and roughly estimated, the enemy army destroyed by this round of artillery was only afraid of no less than 300,000 people.

"If this black-clothed cannon has enough shells, my Beihai army can directly enter the Chengtian Empire. Alas, forget it, being able to kill and injure 300,000 can be regarded as an explanation to Lord Baishi, and in the future, this black-clothed cannon must be spared. While thinking, Bai Hui looked at the corpses in the big pits, covered his nose in disgust, and turned back to the camp. After nightfall, the Beihai army poured quicklime into the large pits outside the pass, and played a game of crushing bones and scattering ashes.

And when the artillery division was in the limelight, the Flying Feather Army had nothing to do, and finally had to shoot Kule, who attacked the wall alone, into a hedgehog to calm his displeasure.

Later generations called this shelling the Nether Thunder, and at least more than 300,000 elite troops of the Shangdang Legion were killed in this shelling. After this battle, the Chengtian army on all the battlefields knew about the existence of the artillery division, in order to prevent artillery bombardment, the Chengtian army no longer used a dense formation, and on the Beihai battlefield, there was no longer a phenomenon of the Chengtian Empire's million army attacking a city, and the two sides began to really enter a state of fierce battle.

ps: I'm awake, let's change first