The black sandstorm brought surprises and troubles to Yang Shuang.

Because the terrain within a radius of 100 miles of Yumen Pass has all been changed.

In the vast desert and the Gobi Desert, road signs are extremely scarce, it may be a dead tree with a crooked neck that is passed down by word of mouth, or it may be a pile of animal bones that passers-by often throw a few and gradually build up, and it is more likely that it is just a sand dune.

But now, there's nothing!

Two hundred sword and shield soldiers, single and two horsemen, took six days to draw a new marching map.

The ensuing news poured cold water on Yang Shuang, who was working hard to boil salt.

The ancient city of Canghe is mostly buried by yellow sand, and if it is not excavated, it may be abandoned in the future.

The boulder at the entrance of the horse lost disappeared, and the western desert seemed to have become more and more dangerous, so much so that Wu Kun forbade everyone to work westward.

The city wall on the south side of Yumen Pass was washed away by the salt mountain, and the huge gap was shocking and required a lot of labor to repair.

Troubles, it seems, don't stop there.

After the withdrawal of the Dunhuang army, Yangguan was like a fictitious, and many horse thieves in the Western Regions did not know where to get the news, and formed gangs, and seemed to be preparing to occupy this Xiongguan.

So much so that the Yumen Pass at the same level has also been focused on.

Early in the morning.

The crowd is busy.

The east and west city gate towers have fallen on the city wall, and a hundred crossbow archers are dressed in simple armor and have crossbow arrows on their backs, vigilantly looking into the distance.

Outside the gate, 50 acres of fertile land, under the care of the people, are well organized, and the corn seedlings are growing vigorously, adding some color to the barren world.

In order to avoid the mixing of military and residential buildings, between the east gate and the west gate of Guancheng, a ten-meter-wide avenue has been paved, with high walls on both sides, the left is the military camp, and the right is the private residence, which can be used as an urn city, and can avoid the restart of the trade route in the future and disturb the rest of the people.

"Jingle Bell····· Dingle ·····"

Suddenly, in the southwest of the pass, there was a crisp ringtone.

After a while, a caravan composed of more than 100 camels and more than 1,000 men and horses slowly approached the pass.

Large boxes, small boxes, tent felt cloth, you name it.

This group of people is all dressed in distinct armor, and although the weapons in their hands are mixed, they are sharp, and there are even a few two-handed swords!

Above the city, the sword and shield soldiers, crossbow soldiers, as well as the sturdy ones who operated bed crossbows and trebuchets, immediately became nervous.

This is the first time I have encountered a caravan since the reconstruction of Yumen Pass!

The important thing is that recently, the sentry riders have been reporting the movements of the horse thieves almost every day, and Guan Cheng has listed all the possible strategies used by the horse thieves, reciting them aloud in the morning, and whispering silently before going to bed at night, which makes everyone nervous all day long.

One of them is that horse thieves will disguise themselves as caravans and cheat the customs!

"Come, stop! The Great Sui Jade Gate is closed, and those who are unidentified are forbidden to enter! Hearing the report of the sentry horseman, Yang Shuang was extremely surprised, someone could cross the horse after the black sand storm was raging?

Definitely not the average person!

Immediately changed into clothes and armor, and came to the front of the pass with a sword and shield.

Wu Kun had already written down the procedures required to enter and exit the border into regulations, and popularized them to all soldiers.

The people of the Great Sui are generally not allowed to leave the customs without authorization, unless they have customs clearance documents, similar to future visas, and if there are several people, write the names of several people. The item that proves the identity is the bamboo amulet! Prohibited items such as copper, iron, leather, and salt are not allowed to be carried out of customs.

The caravan, in addition to the above procedures, must also provide the type, quantity, value, and origin of the goods.

The entry of crooked nuts into the Great Sui is even more strict, and without a letter of certification from the country where crooked nuts are located, it is estimated that they will be killed on the spot.

According to Wu Kun, if this caravan wants to enter the customs, it will take at least two days to conduct an inventory!

Of course, if they were horse thieves pretending to be caravanserans, it was estimated that they would collapse immediately when they were killed.

Hearing the shouting, the caravan stopped fifty meters away from the pass, and three men came quickly from it.

They had yellow strips of cloth wrapped around their heads, wore brown robes, and they could shake off a lot of sand and dust when they walked, and what Yang Shuang cared about the most was that they were all barefoot.

"Be on guard!"

There is something strange.

The difference between these three people and the guards behind them is too far!

"General Qiqi, this is my customs clearance paperwork! The goods behind are all agate, glass, ivory, sesame and other things. ”

Yang Shuang was even more suspicious in his heart.

The banner of Sui characters fluttering on the tower of the city gate, this group of merchants is estimated to be the first time they have encountered it, and they are not surprised!

Looking through the documents handed over, the font on it was completely incomprehensible, so he handed it to Wu Kun.

"Yu Guan Cheng, this is the Northern Zhou customs clearance document, according to the law of the Great Sui, it can still be used!"

"Oh? Really? Where did they come from and where are they going? ”

"From Eastern Rome, passing through Sassanid Persia, Khorezm, Shule, Qiuzi, Gaochang, Yiwu, ready to go to Chang'an City!"

In ancient times, Rome was known as the Great Qin, also known as Fula, or the Hercynian Kingdom.

Eastern Rome is known as the Byzantine Empire.

Because the Great Qin and Qin Shi Huang have the same name, there is only the title "Eastern Rome" in this book.

And Chang'an City is the Chang'an City of the Han Dynasty, not the Chang'an City of the Tang Dynasty, because Daxing City is still under construction.

"Oh? Quite far! Yang Shuang's eyebrows were flirtatious, and he looked at the three people with a very exotic flavor, "Nest to eat the inner membrane?" ”

“？？？” The three of them were dazed.

"'Spicy next door', you don't understand this sentence?!"

“？？？” The three looked at each other, all shaking their heads.

"Presumptuous! Coming from Eastern Rome, I can't understand Roman, so I can't deceive myself? Come on, take them all! Dare to resist, kill on the spot! ”

"It's exposed!" One of the three black and thin men shouted loudly and raised his leg to kick Wu Kun's head.

The other two also took out daggers from their cuffs and stabbed Yang Shuang.

In the distance, the "merchant guards" who were waiting for negotiations galloped wildly and rushed straight towards the city gate.

"Retreat, close the gates!"

In order to show the demeanor of a great country, or to run fast, Yang Shuang negotiated with the caravan and only took Wu Kun alone.

Suddenly attacked, his face was full of "panic", and he shouted loudly at the top of his voice, "Enemy attack!! ”

"Kill them and take the gates!!"

"Hurry! Enter the city!! ”

The three merchant leaders worked together to force the two undesirable embroidered pillows to retreat outside the city, and quickly controlled the city gate.

Fifty meters, for the cavalry, is just the distance between breaths, and in the blink of an eye, they rushed to the front of the pass.

"Capture the Yumen Pass and kill the Sui army!!"

Seeing that almost all the cavalry had entered the city, the three merchant leaders laughed uncontrollably.

"That group of idiots are still arguing over the ownership of Yangguan, and they would never have thought that we have already won Yumen Pass!"

"Haha, let's go to Dunhuang tonight to grab a few girls!"

"Tsk, I really didn't expect Sui Jun to be so stupid······"

While the three of them were talking, they suddenly noticed a black shadow above their heads, and they silently raised their heads, and the huge wooden plank had come into view with a whistling.

"Bang ·····"

Yang Shuang slapped the three people to death, Wu Kun cut off the heads, grabbed the rope handed down from the city wall, and soon, the two of them stood in front of the city gate building.

"Boom ······"

Almost at the same time, there was an earth-shattering bang from the east and west gates of the pass.

Although the city gate is not closed, there is an additional two-foot-thick stone wall in the city gate hole!

City Gate Gate!