By the evening it was probably evening, the camp was already in place.

It's already a desert, and the temperature difference between day and night is already obvious, and it's so hot during the day that you want to go bare, but at night, it's so cold that you need to wear a few more clothes.

"Childe's fire is already burning, come and roast the fire!" Shadow Elder bows down!

At this time, Li Zhan, who was in the tent, hurriedly said, "Got it, Shadow Elder!" Following Li Zhan and Feng Ming out of the tent, as soon as Li Zhan went out, he saw Lin Dong eating instant noodles.

Seriously, Li Zhan really couldn't stand it after eating instant noodles for about a month, it's not that instant noodles are not delicious, in fact, Li Zhan's instant noodles have two kinds of lard and mutton fat, put some salt, put some chopped green onions, the taste is still good, with fried rice, the more you chew, the more fragrant it is.

But no matter how delicious something is, if you eat it for a long time, it won't be delicious, but what Li Zhan didn't expect was that this child named Lin Dong had eaten instant noodles for more than two months, and he didn't get tired of eating them, Lin Dong told Li Zhan that he would always eat instant noodles for the rest of his life.

Seriously, it's kind of scary.

When Li Zhan and Feng Ming sat by the fire, it would be dark after a while.

However, just after dark, suddenly, after Li Zhan looked at the head of the Yumen Pass, he actually found that there was a bright light on the head of the Yumen Pass, and this light was particularly dazzling.

Li Zhan immediately asked, "What's that?" ”

Li Zhan's question, the people around him didn't know, only Gao Hu smiled and said, "Hehe Gongzi, that's why this place is called Yumen Pass." ”

"Oh?" Li Zhan looked at Gao Hu and said, "Brother Gao Hu seems to know some story, it's just fine, tell us about it!" ”

Gao Hu looked at everyone's expectation, and also smiled: "Yes, but this is also what I heard, I don't know if it's true or not, everyone should have fun."

During the Han Dynasty, the terrain near Yumen Pass was very complex, with swamps, ravines, forests, and weeds. Whenever the caravans carrying jade on the Silk Road hit the road in scorching heat, they would always rush in the cool of the night to avoid heat stroke for people and animals during the day.

However, at night, the roads near the inn were always shrouded in darkness, which made it difficult for caravans to find their way, and even the old horses who often traveled to and from the caravan were confused and difficult to see, hence the name "Horse Lost".

Among the many caravans that traveled to and from the horse lost was a caravan specializing in jade and silk, which traveled the road all year round, and often lost its way here in the horse lost road.

Once, the caravan had just entered the horse and got lost. Just when people were anxious, a lone goose fell not far away. A kind-hearted young man in the caravan spotted the lone goose and quietly grabbed it in his arms, ready to let it go when he got out of the horse's way.

After a while, I saw the wild goose crying to the young man with tears in his eyes, "Gollum, give me food, Gollum, you can get lost." ”

After hearing this, the young man suddenly realized that the wild goose had fallen behind because he was too hungry to fly, so he immediately took out his own dry food and water to feed the wild goose. After the geese were full, they flew into the sky, kept flying, and led the caravan out of the horse lost and smoothly arrived at the destination of Xiaofangpan City.

After some time, the caravan lost its way again in the "Horse Lost", and the wild goose flew again and shouted in the air: "Gollum, Gollum, the caravan is lost." Grunt, grunt, square plate inlaid with jade. ”

The geese flew while shouting, and once again led the caravan out of the "horse lost". What the wild goose said when it flew away was only understood by the young man who saved the wild goose.

The young man relayed the meaning of the wild goose to the leader of the group and said, "The wild goose told us to inlay a piece of luminous dark green jade on the small square pan city, and the caravan will never get lost again when it has a goal." ”

After hearing this, the leader calculated in his heart that a piece of luminous dark green jade was worth thousands of taels of silver, but he was really reluctant, so he didn't agree.

Unexpectedly, the caravan got lost again in the "horse lost", resulting in several days of not being able to find a water source, everyone was parched, thirsty and unable to walk, even the camels were panting with thirst, and their lives were in danger.

At this moment, the wild goose flew in again, and shouted in the sky: "The caravan is lost, the square plate is inlaid with jade, and it will not give up the ink jade, and it will never lead the way." ”

When the young man heard this, he hurriedly told the leader, "The wild goose said that if we are reluctant to inlay the black jade, it will no longer lead the way for us." ”

The leader panicked and hurriedly discussed countermeasures with the young man. The young man said, "Quickly kneel down and swear to the wild goose that you will never break your word, or we will be in real danger." ”

The leader immediately knelt down and swore to the wild goose as the young man said, saying that if the wild goose was willing to guide them, then after they got out of the way, they would definitely be inlaid with black jade.

After hearing this, the wild goose spun in the air for a moment, leading the caravan out of the "horse lost" again, so that the caravan was saved again.

After getting out of the "horse lost", the leader of the caravan did not break his promise, and immediately picked the largest and best luminous ink jade in his caravan and inlaid it on the top of the local customs tower. Whenever night falls, this piece of black jade emits a dazzling light, and it can be seen clearly even from a radius of tens of kilometers.

Later, since the noctilucent dark green jade was used as a signpost, the passing caravan never got lost again.

There was a piece of jade on the upper floor of that pass, and since then this place has been renamed "Yumen Pass". ”

Gao Hu smiled and continued: "Someone went to Guan Lou to see that it was not a few thousand taels of jade at all, but a stone, but no one understood why the stone glowed, but the fact is that the light did save many people. ”

After Li Zhan listened to the story, he also nodded, that light is like a lighthouse, it really guides many people, Li Zhan thinks that this is also why, many people in the Tang Dynasty regard Yumen Pass as the gateway to the Tang Dynasty, that light is like a light at home, and seeing it is going home!

Just after listening to the story, a ride came from ahead.

After a while, Li Zhan saw that someone was none other than Hou Guangliang.

"Childe!" Hou Guangliang came to Li Zhan's side with a smile, Li Zhan looked at Hou Guangliang and asked, "Have you eaten?" ”

Hou Guang nodded and said: "It's right, Childe, my father asked me to tell Childe that I will enter the Western Regions tomorrow, and there is a desert of two thousand miles in front, and Childe's carriage can't be used, so I can only follow everyone."

There is also the water source, maybe Childe will not be able to take a bath, but my father said that he will ensure that Childe will drink water and wash water. ”

However, after Hou Guangliang finished speaking, Li Zhan shook his head and said: "Guangliang, go back and tell Manager Hou that I am not afraid of getting dirty, after entering the desert, water is the most precious resource, I want to lead by example, I must not waste a drop of water, water is for drinking, not for washing." ”

"Childe, why do you bother, your status is noble!"

It's just that Hou Guangliang hasn't finished speaking, but Li Zhan said with a smile: "Guangliang, it's because of my noble status that I have to do a better job, rules are rules, the more noble people are, the more powerful people are, the more they have to abide by the rules, not for others, but for themselves."

I don't wash, in fact, I just save water for everyone, and then we all walk out of the desert for 2,000 miles together. ”

Hou Guangliang nodded with a smile and said, "Childe, I understand!" ”

Li Zhan also smiled back and said: "By the way, you Tiger Army must take good care of the horses, it is hot during the day and cold at night, this ghost weather is difficult for everyone." ”

"Please rest assured, the war horse is our brother, and we will definitely take care of our brother." Hou Guangliang immediately assured.

For Hou Guangliang, Li Zhan was very relieved, looking at Hou Guangliang who was guaranteed, Li Zhan smiled and said: "Okay, I believe in you!" ”

In this way, there was no word for a night, and the next day, the army officially left the Yumen Pass and entered the desert.

Here I want to explain how dangerous the 2,000-mile desert is, and why King Gaochang can think so calmly that the Tang army can't cross the desert, because the desert is really terrifying.

The climate of the desert has many characteristics, such as many sunny days, strong sunshine, dryness, hot summer, large temperature difference between day and night, and many winds and sands.

The key to this is "dry".

Because it is dry, less, there is more sunshine, and the sun is strong; Because it is dry, there are no clouds in the sky, it cannot block part of the sun, there is no moisture on the ground, it cannot evaporate and cool, and the heat of the sun on the ground is all used to heat the air of the earth, so the temperature in summer is particularly high, and the temperature difference between day and night is particularly large.

The high daytime temperatures in the desert are caused by strong solar radiation.

How hot is it on the ground at noon in the desert? In the desert area of Xinjiang, China, temperatures of 70 degrees Celsius are common. On the surface of the sand dunes in the southern part of the Turpan Basin, 823 degrees Celsius was measured.

In addition to these, there are dangerous creatures, poisonous snakes and scorpions, but the greatest danger in the desert is not poisonous snakes and scorpions, but heat stroke and dehydration, in the desert, once heat stroke and dehydration occur, it is almost uncontrollable, because a person who has fainted from heat stroke will lose the ability to save himself.

The desert is vast and flat, with sparse vegetation, and people are easy to get lost when traveling in the desert due to the single scenery and lack of directional orientation.

And in the desert, people generally do not walk in a straight line, usually deviate to the right. The average person's left step is a few millimeters larger than the right step, so they unconsciously turn to the right in the middle of the process. Walkers usually walk in a circle of about 3~5 kilometers, which is the saying "ghost hitting the wall".

The most terrifying thing is that the sandstorm desert area has been in the desert area for a long time, with a wide range of clear skies and blazing suns, which makes the desert under abnormally high temperatures, creating a super-large-scale high-temperature updraft.

This air flow is dry and powerful, it quickly rises to the sky, carrying the ground sand and dust into the sky, producing dust; Its rapid rise in turn creates a large area of negative pressure near the surface, which inevitably causes a large amount of air to fill it, resulting in storms on the ground, which can lead to catastrophic dust storms.

When the sandstorm comes, the sand and dust flying in the sky cover the sky. The sky was as dark as night.

The miscellaneous gravel on the ground was scraped all over the ground, hitting the ankle epithelium and breaking the blood flow, and even bone cracks and fractures; The sand scraped on the face was like pins and needles, and even pierced the skin and oozing blood.

In the event of a sandstorm, people and camels must move quickly to avoid the sand and dust that can fall from the sky and avoid being buried by the wind and sand. If you don't avoid it in time, it's very dangerous.

Therefore, King Gaochang is so at ease, but King Gaochang has forgotten that the Tang army is not afraid of hardship, not at all!