The reason why light is precious is because it does not always exist, and it always needs someone to fight for it with sweat, blood, and even life, and the days without light are the so-called darkest moments.

There are too many such moments in human history, such as the beginning of World War II, when the European continent fell completely, the Eastern Front was defeated and retreated, and the whole world was shrouded in the shadow of ***;

Another example is the invasion of southern Mongolia, the slaughter of the foundation of China, the Yan and Huang elites overturned the cliff mountain, and the Chinese civilization that has lasted for thousands of years is in danger.

At present, whether it is for Bei Wuwei or Xu Rui himself, he is also in the darkest moment, and at such a moment, he always needs extraordinary patience and extraordinary persistence in hope.

Sangou died, Xu Rui hurriedly buried him in a mountain stream, the grave was just a broken wooden board that had just been cut down, and it would be crooked when the wind blew, and maybe he would never find the location of the tomb again when he turned around.

But this is all that Xu Rui can do for him, because there are more difficult problems waiting for Xu Rui to solve, and more people's lives are waiting for Xu Rui to save.

No one wants to risk going and not looking back, not only because this strange mountain range has a pass that runs north and south every few hundred miles, but also because it is so difficult.

If we insist on an analogy, Liuqing Mountain is somewhat similar to the Hengduan Mountain Range, with an altitude of just a few hundred miles rising rapidly from more than 300 meters to more than 4,000 meters, and then rapidly falling to about 500 meters.

In this way, countless peaks and mountains will be born like towering trees, as well as many difficulties caused by the rapid rise in altitude, such as the lack of oxygen on the plateau and the severe cold climate.

Although Xu Rui used the field knowledge he learned from another world to dig roads in the mountains and build bridges in the water, which greatly reduced the difficulty of crossing mountains and mountains, he alone could not resist the terrible forces of nature no matter what.

From the second day of entering the mountain, Beiwuwei had to face the difficulties that followed.

In the late autumn of the fifteenth year of Hongwei, God seemed to deliberately oppose Beiwuwei, and the snow not only came early, but also did not stop at once, and the already difficult mountain road was covered with snow and turned into a terrible trap that devoured life.

There are no roads in the flowing mountains, and the so-called mountain roads are actually rocks exposed from the cliffs, which are usually only 30 centimeters wide, and the narrowest place is not even 20 centimeters, with steep mountain walls on one side and an abyss on the other.

If the road is too narrow, the team will turn into a long line of snakes, and the snow under their feet will be turned into ice by the team in front, and those behind will slip and fall into the valley if they are not careful.

Every once in a while, the team could hear a scream of terror falling into the valley, and at first the soldiers would stop to check, and the generals would use these negative teaching materials to remind the soldiers to be careful.

But later, because there were too many similar facts, the soldiers were numb, and when they heard the screams, they only frowned slightly, and then continued to move forward.

In addition to stumbling, the soldiers were most worried about the crevices hidden under the snow.

There are many narrow crevices on the complex and rugged mountain road, which cannot be seen after being covered with snow, and if you step into the air, you will fall into the mountain crevasse hundreds of meters deep, as if you were swallowed by a wild beast in an instant.

On the third day of entering the mountain, Beiwuwei was already close to the ridge, and the altitude was about 4,000 meters, and many soldiers had severe altitude sickness, and after their physical strength was exhausted, they began to gradually fall behind, and once they fell behind in such a harsh environment, it often meant death.

Even more terrifying than altitude sickness is the bitter cold.

Space is limited on narrow mountain roads, and it's not uncommon for dozens of soldiers to be crammed into a tent like sardines, but even then there are still many people who don't have the space to pitch a tent.

The soldiers who did not have tents had to wrap their blankets and bedding around their bodies, close them together, and then huddle in corners to hide from the terrible wind and snow.

However, when the sun rose the next day, and the soldiers were ready to continue on the road, they found that the soldiers who did not have tents had been frozen into rows of ice sculptures.

Since then, the generals have issued strict orders that no matter how narrow the space is, even if people are left behind, they must sleep in tents, and no more sleeping in the open wind and snow will be allowed.

It wasn't until the fourth day of entering the mountain that the army finally entered the canyon that Xu Rui had already planned from the top of the mountain, and the large number of non-combat attrition of the soldiers was controlled.

Although the canyon is still difficult, because of the low altitude, the drop is smaller, and the danger is much lower, but this time a new problem arises.

Beiwuwei was in too much of a hurry when he set out, and did not reserve sufficient supplies, and after entering the mountain, because of the harsh conditions, the materials were consumed too quickly, resulting in a very tight supply of materials, especially food.

The generals had to implement rationing and strictly control the amount of food used.

However, the army had no chariots and horses, and the food was carried on the shoulders of every soldier, and the soldiers did not know whether they could hold out until tomorrow, and often ignored military law, and ate a full meal, and the already small amount of food was quickly consumed, and the army began to starve to death or attrition due to insufficient energy intake.

The sun rose, but the sun seemed to have no temperature, and the howling mountain wind was still cold to the marrow.

Shangguan Buda got out of the tent that was leaking everywhere, picked up a handful of white snow and rubbed it on his face quickly, and after a while, his whole face had become red, and his groggy consciousness was a little more sober.

After escaping from the battlefield in the mountain pass, he took his steward all the way to hurry, and finally caught up with the tail of the northern martial guard in the middle of the night.

In order to enter the mountain quickly, Beiwuwei had to break the formation of each battalion, and often there were fallen soldiers who were temporarily absorbed by other battalions, Shangguan Buda and the housekeeper did not appear abruptly, they wore the clothes and armor of Beiwuwei, and they made up a reason to mix in, without arousing any suspicion.

Along the way, Shangguan Buda and the two faced all kinds of difficulties like other Beiwu guards, although they were often ridiculed by the soldiers due to their frailty, but many of the dangers that the soldiers did not hold on to were overcome by them.

Two old men over half a hundred years old are like cockroaches that can't be killed, still alive strongly.

"Master, give ......"

The butler quietly walked up to Shangguan Buda and stuffed him with a lump of black and yellow things, which looked like a stone from a distance.

Shangguan Buda's pupils shrank: "It's a dry cake?!" ”

"Shh!!h

The housekeeper made a silent gesture, looked left and right, saw that no one was paying attention, and lowered his voice and said: "Eat quickly, master, this is what the old slave has secretly saved in the past few days, your body is expensive, how can you suffer from this, eat quickly......"

Shangguan Buda looked at the dry cake in his hand, and then looked at the hungry housekeeper, his hands trembled slightly, and his nose was a little sore, but he still stuffed the dry cake into his mouth, chewed it a few times, and swallowed it into his stomach.

Xu Rui woke up from his sleep, his brain was still a little dizzy, there were too many things for him to worry about in the past few days, and he was tormented by lack of oxygen, which made his young body a little unbearable.

And Liu Yi's old child also gave him a headache, after being knocked unconscious by Mei Chuang, he woke up on the mountain road back, and learned the ins and outs, this old guy didn't go crazy enough to rush back and advance and retreat with the forward battalion, but since then he has ignored Xu Rui, even Xu Rui was assassinated by Chang Le, he just sent someone to ask, knowing that Xu Rui was okay, he had no other expression.

However, Xu Rui has to run into the Chinese army every day these days, not only to solve all kinds of troubles, but also to find a way to make Old Man Liu happy, otherwise he has to look at his stinky face with his nostrils facing the sky.

"Hey...... I'm so miserable......"

Xu Rui stretched, pushed away the thick quilt on his body, and sat up with difficulty.

As soon as he got up, he was suddenly slightly stunned, and the quilt covering him was not one, but two whole beds.

He hurriedly turned back to look at Xu Fang, only to see that Xu Fang was really only wrapped in a blanket and shivering.

Xu Rui's heart was sour, and he wanted to put the quilt back on his body, but Xu Fang had a heavy cough from his mouth and woke up quietly.

In the past few days, his cough has become more and more serious, Xu Rui was too busy and had no time to help him recuperate, so he had to ask him to give himself an injection.

Xu Rui also knows that although a chronic disease like bronchitis is not a big problem, it is a real stubborn disease, and it will not get better if you don't cultivate for a while.

Now is the most difficult time for the army, how can there be time for him to recuperate? It's only a matter of getting through the next few days.

"Less...... cough cough cough ...... Young Master, wake up...... Ahem...... Awake? ”

Just thinking about it, Xu Fang slowly got up, and when he saw Xu Rui sitting on the ground, he asked.

Xu Rui frowned and asked, "Your cough is getting worse and worse, have you had any injections on time these days?" ”

Xu Fang stopped coughing for the time being, nodded and said, "There is a fight, of course there is a fight, young master, don't worry, I am very good, old slave." ”

Hearing him say this, Xu Rui relieved himself a little, got out of the quilt, and handed over his quilt.

"You're still sick, young master, I'm not as delicate as you think, don't do this kind of thing in the future."

Xu Fang took the quilt, smiled, and didn't nod, suddenly seemed to think of something, and said happily: "Young master, I got some good things from the guy yesterday, just for you to taste." ”

Seeing him smiling with a thief on his face, Xu Rui was also interested, and asked curiously, "What is it?" ”

Xu Fang jumped up, mysteriously grabbed the burden, and took out a palm-sized crockpot from it, Xu Rui's eyes suddenly lit up: "Is it wine?!" ”

Xu Fang nodded happily and said: "Yes, I finally snatched these from the old door, if you feel cold at night, you can take a sip of warm water with a low fire to ensure that your whole body is warm." ”

As he spoke, Xu Fang held the crockpot and wanted to hand it to Xu Rui, but before he could stretch out his hand, his legs suddenly went soft.

"Xu Fang!"

Xu Rui was suddenly shocked, kicked the quilt away, rushed to him, saw that his face was pale and his lips were purple, and he hurriedly reached out and probed his forehead.

"It's so hot, Xu Fang, you have a fever!"

The corners of Xu Fang's mouth trembled slightly, as if he wanted to say something, but he didn't say it.

Xu Rui hurriedly helped him lie down, then rummaged through the cabinets to find the stethoscope for Xiao Jinwu's treatment, pulled off his armor, and put it on his chest to listen carefully.

In just a moment, Xu Rui's face suddenly changed greatly.

Rales, there are rales, he has pneumonia!

In the era of lack of medical treatment, pneumonia or lung infection is a disease that can easily cause death, even in another world where medicine is extremely developed, pneumonia is also the biggest killer of the elderly, so how can Xu Rui not be surprised?

"Young Master......"

"Don't talk, what about penicillin? Where is it? ”

Xu Fang didn't speak, Xu Rui hurriedly got up and turned out the medicine box, but there was nothing in it except a needle.

Xu Rui was stunned for a moment, and hurriedly turned around and asked Xu Fang: "Are you done with penicillin?" ”

Xu Fang shook his head: "It's all sent to General Xiao, I'm afraid that General Xiao's condition will recur, I gave him the last one last night, he woke up for a few days, saying that he wanted to see you, I saw that you were too busy these days, so I didn't agree......"

Xu Rui frowned, pulled his clothes open, and there was indeed not a single pinhole on his body.

"You gave him all the penicillin and didn't get a shot yourself?"

Xu Fang nodded.

Xu Rui sat down dejectedly.

Pneumonia must be treated with antibiotics, but now that the antibiotics have been exhausted, where is he going to find them?

Not to mention that there is a shortage of materials now, it is impossible to put food until it becomes moldy, but there are really so many materials, how to make them in a low temperature environment? And Xu Fang can't wait for half a month!

"Young Master...... Give ......"

Xu Fang held the jar of bad wine in both hands and handed it to Xu Rui, barely squeezing out a smile on his face.

"When is it, you still care about this?"

Xu Rui's heart was like a knife, and he wanted to smash the jar with a slap.

Xu Fang shook his head and said: "It's okay young master, even if the old slave can't accompany you, and my kid, he will be fifteen years old when he turns the New Year, it is the age when the old slave met the old man, if the old slave doesn't become it, let him take care of you......"

"Say no more!"

Xu Ruiqiang endured the tears rolling in his eyes, turned his head and muttered for a moment, then suddenly stood up and said, "You wait for me, I'll go to Mr. Changpo, even if you exchange your net worth and life, let him save your life!" ”

As he spoke, Xu Rui lifted the curtain and rushed out.

Xu Fang looked at the place where he disappeared, let out a long sigh, held the wine jar in both hands, and carefully placed it on Xu Rui's quilt.