In mid-February, the Intelligence Section of Base Command sent in a bizarre remote sensing report. At this time, it is the season when the cold winter fades and gradually spring, the warm and humid airflow brought by the southeast monsoon from the South China Sea encounters the cold air entrenched in the Sichuan Basin, forming a front that stretches for hundreds of kilometers, the high-altitude drone takes off from Jiangbei Airport in Chongqing City in the face of continuous rain, penetrates the low-pressure clouds, flies north to Linshui County, and then turns east to Dianjiang, Fengdu and Pengshui, the flight route draws a large arc along the surrounding counties and townships around the periphery of Chongqing City, with a flight radius of more than 150 kilometers, which is a daily routine reconnaissance activity of 151, The drone is equipped with a high-resolution optical lens and ground radar to scan in a spiral trajectory.

After the collapse, human beings lost all their spacecraft in orbit, and also lost their space launch capabilities, since then external reconnaissance can only rely on UAVs and high-altitude balloons, 151 base has two modified cloud shadow UAVs, unarmed, installed photoelectric probes and radars, can see the ground license plate at a height of 10,000 meters, this year, whether it is the carrier aircraft platform or the probe radar consumes inventory, there is no production line, can not be built, scrapped one less one, cloud shadow is a large high-altitude UAV, there are only seven left in the world.

The remote sensing report is a photo, a thick stack, one sent to the joint command center of Guanyin Bridge, and the other to the base headquarters, Chen Yu was the first person in the operations section to see this report, he pointed to the specially framed location on the photo and asked the intelligence department:

"What is this?"

The staff officer of the Intelligence Section shook his head:

"I don't know."

If it weren't for the snow, no one would have found any traces of it, the snow on the top of the mountain in February had not yet melted, in the black and white photo was irregular stretching white patches, and the black one was dense woods, Chen Yu held the photo slightly high, frowned, he saw that there was a straight black thin line across the east and west, through the whole photo, very conspicuous, it was the white snow that set it off.

This is the drone in the flight over the Lion Rock, Fengjia Mountain and Fenghuangzui area, the scale of the photo is 1:5000, a lens of view includes several mountains, this thin black line from the photo in, and out from the other side of the photo, the thickness and width are estimated to be two or three meters, Chen Yu found a few photos around it, put them on the table and put them together.

"What's this line?"

"Do you think it's like a rut? The wheels ran over the snow. ”

"No kidding, it's on the top of the mountain, it's all trees, there's no road, how can the car drive over?"

The other staff officers in the same office gathered around the desk, probing their brains and gossiping.

There is no doubt that this could not be a trace left by humans, there are few humans living outside the safe zone, it may be some natural phenomenon, or it may be the footprints left by angels.

"Where's Phoenix Tsui? Over there, right? Is it in our northeast direction? Chen Yu spread out the photos one by one, "How far is it from here?" ”

"About one hundred and fifty kilometers." Someone answered.

Straighten the photos in the direction of up, north, south, left, west, right, and east, you can see that the line is slightly inclined east-west, Chen Yu found other photos with thin lines, four, eight, and sixteen pieces of paper put together to form a large one, the dark thin line crossed the seam between the photos, and was also intermittently extended, due to the resolution of the probe and the terrain vegetation, this rut-like trace is only most conspicuous when passing through the snow, but it can be seen that it is almost straight.

No matter what the terrain is, it does not affect the direction of the straight line, as if someone has cut a knife in the photo.

Chen Yu stood in front of the table and straightened up, slowly frowned, and asked a question:

"How long is it?"

The people around were stunned.

A staff officer held a drawing ruler in his hand and leaned over to press the ruler against the photograph to align it with the black line.

"Extending in this direction, it should pass through Sangu, Tongmen Cave, Taihe and Huanxiping." The staff officer walked around to the other side of the table, "That's the direction to Guang'an." ”

"Do you have any pictures over there?" Chen Yu asked, "Today." ”

"Yes."

The photo was sent quickly, and the straight-line distance from Dianjiang County to Huanxiping was also fifty kilometers away, and there was no snow in the middle of the large flat land and valleys, but Huanxiping was on the mountain, and there was indeed a clear rut mark in the white snow. Chen Yu put the aerial photos of Huanxiping and Sifang Mountain far away in the corner of the table, and the photos at both ends of the table looked at each other from afar, but the dim dark straight line in the photo happened to be on the top, which showed that it was the same line, which extended from Dianjiang County, Chongqing City to Huanxiping, Guang'an City, and still did not see the head and tail.

Everyone present was silent.

"Is there any further afield?" Chen Yu asked.

"How far?"

Chen Yu's eyes scanned the map, no one knew how long the line was, and if it continued in a straight line and infinitely in the current direction, then it would inevitably pass through the entire Sichuan Basin, from Guang'an to Mianyang, and even across the Qionglai Mountains and into the Qinghai-Tibet Plateau.

Chen Yu crossed the entire Sichuan Basin and pointed at the foot of the Qinghai-Tibet Plateau.

"Contact 153, please ask them to fax the photos of today's Nanmugou area, just say urgent, fast."

If the 153 base also has this straight line in the photos taken around the perimeter, it means that the scale of this thing is at least three hundred kilometers across, and it did not exist yesterday - the staff officers are faintly worried about this, so far no angel has really invaded the Sichuan Basin, and this thing in the photo quietly smashed into the hinterland of Huanglong last night - soon the remote sensing images transmitted by 153 confirmed this, making everyone's hearts sink and distance away from the entire Sichuan Basin, There is also a thin black line in the photo that comes from the end, as if there is a large invisible hand carving a straight knife between the snow of the Qinghai-Tibet Plateau.

That's right.

·

·

·

Shang Lu stood on the side of the road with a black umbrella, and the crackling rain was falling to the ground and emitting white smoke.

He looked up at the sky, the gloomy rain clouds had not dispersed for a week, the continuous precipitation had aggravated the humid climate, mushrooms began to grow in the corners of the dormitory, Chen Yu and Shang Lu pulled a few clusters down and wanted to cook them for supper, but after thinking about it again and again, they didn't dare to put it in their mouths, for fear of eating a villain.

The iron door of the warehouse across the road suddenly opened, stretched out a slender arm, opened his five fingers and shook it vigorously, Shang Lu got the signal and greeted him with an umbrella.

The young girl carried a bulging woven bag in her arms, got out from behind the iron door, turned around and leaned the door on her shoulder, turned her head again, saw Shang Lu, her eyes lit up, and before he could get under the eaves, she hurried into the rain, and jumped under his umbrella in three or two steps.

Shen Jiang was also caught off guard by the sudden shower, and because of the dampness, all the washed sheets in her dormitory were not dry, so she simply came to the logistics office to be equipped with a new set and went back to change, but the heavy rain came as soon as it was said, Shen Jiang's front foot entered the door and the heavy rain came on the back foot, and it went down to smoke in a few seconds, completely sealing the retreat, so she had to call Shang Lu and ask him to bring an umbrella.

"Huh? Sending an umbrella? Leader, I'm not your clerk, you ask someone else to send you ......"

"Slippery! It's too late for you! ”

Shen Jiang hid under the umbrella, stuffed the package into Shang Lu's arms, wiped the rain on his face with his hand, and took a sip:

"Oh my god, it's damn weather."

·

·

·

(Upcoming event: At 7:30 p.m. on March 26, at Fangsuo Bookstore in Taikoo Li, Chengdu, the author Jun and Yuantong will have an offline event and signing session, and students from Chengdu are welcome to participate.) ）