During the period of the two Jin and Southern and Northern Dynasties, one zhang was equal to 258 centimeters, and the actual height of the three-zhang high city wall was 774 centimeters, and the standard height of an adult was one meter eight, that is, the height of the city wall was slightly higher than that of four adults stacking human ladders.

With the help of one more person, four of the guards stepped on the people to build a personal ladder, and the one at the top carefully climbed the edge of the city wall, only to show his eyes and look inward, there were five people at the head of the city, four of them around the fire, and one of them walked and jumped along the side of the city wall, tightly wrapped in a leather jacket, and occasionally looked down.

But this is only a symbolic glance, with the danger of the stone fort, even if there is an enemy attack, what can it do? Besides, although there is some moonlight in the dark night, it is also dark twenty or thirty feet away, and the withered grass fluttering in the wind will make people feel frightened, especially the strange sound of the wind passing through the mountains, it is easy to make people think of something that should not be thought of!

A high level of education does not mean that you cannot have faith, but the more stupid and backward you are, the more you believe in gods and ghosts!

It's just that no one could have predicted that tonight there were no gods or ghosts, but the messenger of death came!

The two stone forts are built along the mountain, separated by a mountain road only a few zhang wide, after initially grasping the law of the patrol movement, while the patrol post is facing away from him, the two guards who climbed on the top made a gesture to each other, both nodded their heads, and each sent a signal, and then moved to the side, only to climb the wall with his hands, and his feet on the stone cracks to maintain the balance of the body.

Five people on each side, four people stacked the ladder, and the extra one climbed neatly along the ladder to the top, so that it came. The outer walls of each stone fort have two guards, which means that four people can launch a sneak attack on the guards, which has a better chance of success.

Each silently counted three breaths, and the four guards supported themselves with their hands, and flew up to their own stone castles!

"Who?"

"Enemy attack, enemy attack!"

The flickering of the figure and the sound of landing immediately attracted the attention of the guards, who all picked up their weapons and rushed straight for them.

The language of the Rouran people belongs to the Mongolian branch of the Altay language family, and perhaps the upper class, such as Yu Jiu Lu Shelun and Qi Luohou, can speak Luoyang official dialect. But the ordinary soldiers spoke the Rouran dialect. Their language guards didn't understand and didn't want to understand, and as soon as their feet touched the ground, each of them threw out a dagger. Four cold rays of light flashed. Ahhh After four screams in quick succession. Someone was shot in the throat, someone was shot in the middle of the mouth, and they immediately fell to the spot!

A huge movement alarmed the stone castle. There was an incomprehensible shouting and messy footsteps in the belly of the fort, and it was obvious that reinforcements would come up to inspect it in a few breaths, and if you want to control the stone fort, you must rush before it!

There were originally five defenders on the castle surface, and now there were three left, these three people were stunned, shocked and angry, and immediately raised their spears and stabbed straight at the two guards opposite each other, and the guards also instantly pulled out their short knives to meet them, and pounced a few muffled sounds!

Fighting spears with short knives relies on the work of breaking the white blade with empty hands, but the grassland herdsmen take beef and mutton as the staple food, all of them have big shoulders and round waists, great strength, and they fight and kill all year round, although their martial arts are not as particular as the guards, but they are the most practical killing skills, and they are steady, accurate, and fast!

The guard's knife technique was strange, vicious, and tricky, and the howling north wind covered up the brush knife wind, but after all, he suffered the loss of the short blade, three strikes and two blows, and could not kill the enemy, and the companions who were thirty zhang away could not come to the aid in a few breaths, and the situation seemed to be quite bad.

It seemed to anticipate the stalemate above, at this time, the guard at the bottom of the ladder sent a signal to the above, the guard in the middle immediately squatted on his knees, and then violently held it, and the top guard jumped up with the momentum, climbed up to the top of the city and turned over, shook his hand and threw a dagger, and with two soft sounds, another enemy fell on the stone castle!

The situation was reversed immediately, from two to three to three to three, and the power of the short knife was exerted in the blink of an eye, and the two of them entangled the opponent respectively, and the other person went around the back to watch out for a knife, ahhhhhhhhhhhh After two screams from the stone castles on both sides, the last four enemies were killed one after another!

And every two remaining guards below the castle hurriedly signaled to their companions thirty feet away, and then they threw hooks and brushed up to climb up!

At this point, the total number of people on the two stone forts is still ten, but they have been replaced by personal guards, they do not dare to delay at all, while taking off the crossbow, while running to the exit, without looking at the arrows inward, the stairs of the stone fort are not built on one side like the city wall, it is surrounded by enemies on all sides, can only be built inside, suddenly, the exit came from the sound of screams and heavy objects rolling down the stairs.

The hand crossbow is easy to use, but it still can't get out of the scope of the crossbow, and the filling of the arrow and the winding still need to be done step by step, in such an urgent situation, it is obvious that the second arrow cannot be shot, so the guards have hung the crossbow back to their side, take off a leather bag on their backs, pull the rope apart, and immediately dump it downward, which is all fire oil, and another guard took out the fire fold and shook it in the wind, and threw it down after the fire.

"Boom!" With a bang, a raging flame ignited in the corridor, and the sound of scolding came immediately, but the number of fire oil carried by the guards was limited, and it was a bit reluctant to kill the enemy, but it was still possible to block the enemy for a while, taking advantage of this slow work, the second bag was taken down and untied, and this bag was filled with pieces of wolf dung!

Burning wolf dung will produce a lot of wolf smoke, and there is a cloud in "Youyang Miscellaneous": wolf dung smoke goes straight up, and the beacon fire uses it!

As the wolf dung was poured in, in an instant, the black smoke seemed to explode, except for a small part escaping from the exit, and most of the rest were restricted by the low and sloping building shape of the passage, and they all poured back!

"Ahem, cough, cough~~" Suddenly, the belly of the castle was filled with thick smoke, and the sound of coughing came and went, which was much more powerful than the smoke from their own barbecue, and everyone was full of snot and tears, and they couldn't care about anything, so they could only open the door and run out quickly!

Taking advantage of this, the ninety guards also rushed to the bottom of the stone fort, some took out their crossbows and shot the defenders, some climbed upward, and some blew their horns.

"Woo woo~~" The desolate sound of the horn reached outside the mountain.

"Good! Sure enough, it was a personal guard, and it was so fast! Tan Daoji screamed loudly, and made a big move: "Brothers, go on!" ”

The sound of hooves rumbled, and the defenders originally bullied the guards and chased them to fight, but at this time, their faces were scared green, without the cover of the stone fort, and ten lives were not enough under the rolling iron hooves of the cavalry.

Among the 20,000 cavalry, about 3,000 came from the original Beifu army, they had never seen the strength of the guards, they thought that the capture of the fort must go through a bloody battle, but they did not expect that they would be so easy to take the hand, when they looked at the stone fort in front of them, they still couldn't believe it!

Tan Daoji understands that the capture of the stone fort is only the first step, and then he will inevitably face the crazy counterattack of the Rouran people, because theoretically speaking, the Dongmuganshan Pass is not the only channel to communicate the north and south of Yinshan, but the Yinshan Mountain is about 2,000 miles long, the west end starts from Juyan County, Xihai County, Liangzhou (now Alxa League, Inner Mongolia), and the east end ends in the upper valley of the Luanhe River (now Duolun County, Inner Mongolia), and Pingcheng is facing the middle of Yinshan Mountain, which makes Rouran want to retreat, no matter to the east or west, it has to detour more than 1,000 miles around the Yinshan Mountain Range!

The Yinshan Mountains stretch from east to west, the average width is about 100 miles, the south is steep and the north is gentle, the terrain is complex, the mountain road is rugged, the shape is like a huge natural barrier, blocking the cold current in the south and the humidity in the north, making the climate difference between the north and south of Yinshan Mountain significant, the rain in the south of the mountain is abundant, the wind is small and little, the precipitation in the north of the mountain is scarce, the wind is fierce, it is the dividing line between the grassland and the semi-Gobi and semi-desertified grassland.

This also means that even if the Rouran people are ruthless to bypass Yinshan, they will have to pass through a large barren land to return to the Orkhon River and Tula River basins, and how many of them can survive? It is no exaggeration to say that the Dongmugan Mountain Pass is the throat of any grassland nomad, as long as the Central Plains Dynasty can firmly hold this throat, no one can turn up the big waves, which is also the fundamental reason why Meng Tian of the Qin Dynasty set up two stone forts here!

Within a radius of dozens of miles behind the stone fort, there are mountain valleys of different sizes, where tens of thousands of Rouran defenders are stationed, and the stone fort is only the outpost that controls the mountain pass, and it is obvious that it will not be long before a large army will attack.

Tan Daoji immediately issued a series of orders, and a group of soldiers took the stone fort as the center and built a defensive position according to the terrain.

"Come, prepare!" Xu Daofu suddenly exclaimed.

The soldiers immediately raised their crossbows.

There was an obvious roar from the north, and a hazy black shadow approached quickly, and Xu Daofu shouted again: "Release!" ”

Dense short arrows poured out, and the screams were endless, but the steppe nomads were really not afraid of death, and rushed forward, and after dropping enough corpses, the latecomers simply picked up the corpses to block the arrows!

The flesh and blood tissue is soft, tough, and there are bones inside, which is more effective than any shield, even if it is a steel arrow, it is difficult to completely shoot through a corpse, and the Rouran cavalry have picked up the corpses of their companions as a cover, and they have gradually reversed the unfavorable situation!

There is no way, Tan Daoji is a long-distance attack, he can't carry too much equipment, and the time is in a hurry, he can't take the mountain stones to build a wall, so he can only use the crossbowman as the forward position, but with the crossbow blocked, the only way out is hand-to-hand combat!

Xu Daofu, who was the commander of the front, immediately made a decision and shouted again: "The crossbowmen retreat, and the cavalry catches up!" ”

The crossbowmen retreated like a tide on both sides of the mountain road, and the cavalry stepped forward and engaged the enemy in the most brutal battle!

Although the mountain road is only a few zhang wide, the cavalry that can participate in the battle will not add up to dozens of horses, but the warriors who are located in the rear of the warring cavalry, on the one hand, are preparing to fill the position at any time, on the other hand, they are taking out bows and arrows and constantly throwing them into the sky! (To be continued......)

PS: Thank you for the monthly pass of my favorite Hatsune girl and lmxy, and thank you for the reward ~~~~~~ Feng Xiaai