Tang Yue pulled his left foot out of the sand, took a tentative step forward, confirmed that there was solid ground under the sand, Tang Yue tried to step on it steadily, the quicksand immediately submerged his calf, Tang Yue couldn't see anything, the sand could be flat or pitted, so every step was careful.

"Are you going in the right direction?" Tang Yue stopped to rest, panting.

"As long as you keep it straight, it's fine." The old cat was moving around on his back.

"Why do you keep writhing?" Tang Yue turned his head, "You are very heavy, do you know?" As a cat, you own the weight of a pig. ”

"I'm rubbing and getting hot, didn't you tell me to do it?" The old cat was rubbing his hands and feet, "I don't know if you're walking in a straight line, I told you that it's hard for humans to keep the direction constant in the dark, you may unconsciously shift to the left, I can't see anything, and I can't determine the direction for you." ”

Offset to Left...... Okay, I'll take notice, I'll pay attention. Tang Yue lifted the old cat behind him up, it was very inconvenient to carry a person with Mingguang armor, because there was a life support system separated by it, which made Tang Yue's hands not long enough, "My current stride length of each step is also 0.4 meters, and since I carry you, I have walked two thousand one hundred and twenty-three steps...... With 2,124 steps, we walked a total of 1,450 meters. ”

"Can you still hold on?"

"Okay." Tang Yue nodded, he lowered his head and walked forward step by step, without the old cat to guide him, Tang Yue could only bite the bullet himself, "When I was on Earth, I easily ran five kilometers without panting...... Now there are only two kilometers left, and it is not a problem, it is not a problem. ”

Before he finished speaking, Tang Yue's body tilted suddenly, he didn't know what he stepped on with his right foot, he didn't stand firm all of a sudden, staggered a step, and almost fell.

"Tang Yue?"

"It's okay, it's okay." Tang Yue took a step to adjust his center of gravity, subconsciously grasped the old cat with both hands, and took a deep breath, "Let's continue to move forward." ”

He tried his best to ensure that the direction remained the same, but Tang Yue himself knew that there was no way to guarantee this, he stumbled along the way, and he didn't know how many falls, if it wasn't for the old cat to remember, Tang Yue would have been dizzy.

"Two thousand one hundred and twenty-eight steps."

"Two thousand one hundred and twenty-nine steps."

"Two thousand...... One hundred and thirty steps. ”

Tang Yue glanced at the time, the current time is 11:33 in the morning, the distance of more than 1,000 meters They walked for two and a half hours, in order to save electricity, Tang Yue reduced the heat preservation power of Mingguang armor to a minimum, his limbs were numb from the cold, and his toes were about to freeze off.

The thermometer shows that the outside temperature has dropped to minus 79 degrees Celsius, and it is still falling rapidly, and it is about to fall below -80 degrees Celsius, and the dust storm completely blocks all sunlight, in which case the surface temperature will drop to a rather frightening level.

"Are you cold?" Tang Yue asked, "Your broken spacesuit can't be heated, so you should have left an extravehicular work suit in Kunlun Station, just like the Z-9 on the space station." ”

"I'm more resistant to frost than the average person, and I can still withstand this temperature." The old cat shrank behind Tang Yue with his eyes closed, the wind and sand were blowing head-on, so Tang Yue's body helped it block most of the wind, "The Z series extravehicular suit is more bloated than the Mingguang armor, and you can't walk with that kind of thing." ”

Tang Yue nodded.

"The temperature is too low, and the battery may not be able to withstand it."

"I have a very small isotope battery, and its main role is to ensure that the main battery is working properly." "That means I have a heart that heats up." ”

·

·

·

12:40 p.m.

"Three thousand five hundred and seven steps."

Tang Yue took this step and gasped.

He put the old cat down and sat down on the ground, exhausted from exhaustion.

"I didn't get so tired running two five-kilometres...... Damn it. Tang Yue moved the five fingers of his hands, his five fingers were no longer obedient, and Mingguang Kai's battery still had half of the power left, "Two thousand meters, it's already halfway, and there is still more than the last kilometer left...... Old cat, can you confirm the direction? ”

The old cat sat next to him and curled up in a ball, thinking that the temperature was so low that he had to find a way to maintain his internal temperature.

The number on the thermometer stayed at minus eighty-nine degrees Celsius, this temperature had exceeded the lowest temperature in history on the earth, and without the Mingguang armor, Tang Yue would not survive for a minute when exposed to the outside air.

"Go straight." The old cat said, "Keep going." ”

"I don't feel the feeling in my toes anymore." Tang Yue leaned over and pinched his feet, "It's like a stone, I think I can break my toes off." ”

"Is Mingguang armor still working?" The old cat asked.

"Mingguang armor is in normal condition."

"What about batteries and oxygen?" The old cat asked again.

"It's all quite sufficient." Tang Yue coughed a few times, bit the drinking pipe, drank the last bit of fresh water in the water bag, and then got up from the ground, "Get up, it's time to go, let's continue walking." ”

"Aren't you going to rest?"

"There is not so much time, there is still more than a kilometer of road, and if you drag it for a second, you will lose a second." Tang Yue mustered up all his strength to carry the old cat on his back, "And the more I rest, the more tired I become, and if I sit down like this for a while, I really can't walk." ”

·

·

·

2 p.m. sharp.

Tang Yue staggered on the sand, every step forward seemed like he was about to fall, but he immediately stood firm, the sand had already buried his knees, Tang Yue had long ago lost count of how many steps he had taken, it could be four thousand five hundred steps, or it could be four thousand six hundred steps, he no longer counted the distance he had traveled, as long as the direction was not wrong, he would be able to see his destination sooner or later.

"Tang Yue, can you still hold on?"

"Yes." Tang Yue nodded, "How far have we gone?" ”

"Two thousand seven hundred meters." The old cat replied, "There is less than a kilometer left." ”

"Good...... Good...... There is less than a kilometer left. Tang Yue's throat was hoarse, his throat was dry and smoking, and it took a lot of effort to say every word.

Tang Yue could no longer perceive the existence of his limbs, the Mingguang armor was as cold as an ice cave, even so, it was still nearly ninety degrees Celsius higher than the outside temperature, and the outside temperature had continued to drop in the past two hours, and now it had dropped to minus ninety degrees Celsius.

Tang Yue's brain couldn't get in touch with his hands and feet, and the extreme low temperature and fatigue froze everything to death, including Tang Yue's brain, he seemed to be a robot with no thinking and no memory, and there was only one program back and forth in his brain - go, go forward, go all the way.

The brain can't convey any instructions to the body and limbs, but the legs are still moving forward mechanically, and I don't know where the strength comes from, like a conditioned reflex.

"Tang Yue, your state is not very good, do you want to stop and rest?"

"No...... No, time is running out. ”

Tang Yue coughed violently, he began to have chest tightness and shortness of breath, difficulty breathing, hot pain in his lungs, his throat was blocked by sticky saliva, he couldn't cough out if he wanted to, he couldn't swallow if he wanted to, Mingguang Kai's life monitoring system kept alarming, Tang Yue's heart rate remained high, his heart was pounding, it had exceeded a hundred times a minute, and it was still rising.

The old cat raised the small emergency light in his hand, and the light illuminated the dust and sand particles in the air current.

"Tang Yue."

"Huh?"

"Look, it's snowing."

"Snow?" Tang Yue raised his head, and sure enough, he saw flying white bright ice crystals in the light, I don't know when it started, the wind and sand were mixed with snowflakes, and they fell on the mask glass and shoulders of the Mingguang armor, which did not melt for a long time, and soon accumulated a thin layer.

"It's dry ice and snow, and the atmospheric temperature is already below the freezing point of carbon dioxide." The old cat also raised his head and whispered, "So they solidify and crystallize." ”

It was the first snow on the Ihidi plain of Mars in the year 2053 of the Earth calendar, at the turn of spring and summer, on a long dark night.

"It's snowing...... It's snowing, so we can build a snowman...... Snowball fight......"

Tang Yue unconsciously muttered nonsense, crossed the top of the sand dune, and was about to go downhill, when his feet suddenly softened, this time he didn't have time to stabilize his balance, because his brain and limbs were extremely dull, Tang Yue fell to the ground in a daze, his cheek hit the mask of Mingguang armor, and his eyes were full of stars, and at the same time he threw out the old cat behind him, and one person and one cat rolled down from the sand dune until they reached the bottom of the slope.

"Tang Yue! Tang Yue! Tang Yue, where are you? Can you hear me? ”

The old cat was also stunned, it shook off the sand on its body, held the emergency light, got up and shouted, it and Tang Yue were scattered, there may only be a few meters between humans and cats, but they just can't see each other.

"Yes...... Can you ......" Tang Yue's voice was very weak.

"Can you see the light in my hand?" The old cat asked.

"Yes." Tang Yue turned on the light inside the mask of the bright light armor, and the white light lit up in the darkness a few meters away from the old cat.

"Tang Yue, how are you doing?" The old cat groped to find Tang Yue, who was lying motionless on the sand, "How are you?" ”

"I'm probably not doing well." Tang Yue whispered, "Old cat...... I...... I'm so uncomfortable......"

The old cat helped him up, "What's wrong with you?" ”

Tang Yue was panting violently, his face was pale, as if he had committed some kind of emergency, his mouth opened wide, his eyes widened, and his expression was very distorted, "I can't breathe, I'...... I ......"

The old cat was taken aback.

Tang Yue raised his hand and wanted to grab his throat, but the mask of the Mingguang armor blocked him, Tang Yue could only reach out and grab the old cat's shoulder tightly, and the other hand tore the Mingguang armor, as if he wanted to tear the Mingguang armor, the young man's eyes showed horror and helplessness, and the muscles all over his body began to twitch in pain.

"Old ...... Old Cat ...... Help me, I can't breathe, help me ......"

Tears overflowed from Tang Yue's eyes, and he grabbed the old cat with all his strength, his fingers sinking deep into the fibers of the cabin suit.

"Tang Yue! Tang Yue? ”

"I ...... I ......"

Tang Yue couldn't make any sound anymore, the power in his hand gradually faded, the expression on his face suddenly froze, and his pupils began to dilate.

Mingguang Armor's life monitoring system "dropped-" sounded.

Tang Yue's hand fell to the ground and stopped breathing.