Defend Namsan Park

In mid-February, the intelligence department of the base command sent a strange remote sensing report.At this time, when the cold winter fades and spring begins, the warm and humid air 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. Chongqing Jiangbei Airport took off, broke through the low-pressure clouds, flew north to Linshui County, and then turned east to Dianjiang, Fengdu and Pengshui. The flight route drew a large arc along the surrounding counties and townships outside the urban area of ​​Chongqing. , with a flight radius of more than 150 kilometers. This is 151's daily routine reconnaissance activities. UAVs are equipped with high-resolution optical lenses and ground-to-ground radars to scan in a spiral trajectory.

After the big collapse, human beings lost all the spacecraft in orbit, and at the same time lost the space launch capability. Since then, external investigations can only rely on drones and high-altitude balloons. Base 151 has two modified Yunying drones. After disarming and installing a photoelectric probe and radar, the license plate on the ground can be seen clearly at a height of [-] meters. These days, both the carrier platform and the probe radar are consumed in stock. There is no production line, and they cannot be manufactured and scrapped. One less than one, Yunying is a large high-altitude drone, and there are only seven left in the world.

The remote sensing report is just a stack of photos. One copy was sent to the joint reference center of Guanyinqiao, and the other was sent to the base headquarters. Chen Yu was the first person in the combat department to see this report. He pointed to the photo Ask the Information Section at the location specially framed above:
"What is this?"

The staff officer of the Intelligence Section shook his head:
"do not know."

If it wasn't for the snow, no one would have noticed its traces. The snow on the top of the mountain in February has not yet melted. In the black and white photos, there are irregular stretches of white patches, and the black ones are dense forests. Chen Yu took the photo Slightly raising his eyebrows, he frowned, and saw a thin, straight black line running across things and across the entire photo, which was very conspicuous, and it was set off by the white snow.

This was taken by a drone while flying over Shiziyan, Fengjiashan and Fenghuangzui. The scale of the photo is 1:5000. The field of view of one lens covers several hills. This thin black line comes in from the outside of the photo. Going out from the other side of the photo, the thickness and width are estimated to be two or three meters. Chen Yu found several photos around it and put them together on the table.

"What is this thread?"

"Does it look like a rut to you? The wheels have run over the snow."

"Don't be kidding, it's on the top of the mountain, it's full of trees, and there's no road at all, how can the car drive there?"

The other staff officers in the same office gathered around the table, poking around and chatting.

There is no doubt that this cannot be the trace left by human beings. There are almost no human beings living outside the safe zone. It may be some kind of natural phenomenon, or it may be the footprint left by angels.

"Where is Fenghuangzui? The Dianjiang side, right? Is it northeast of us?" Chen Yu spread out the photos one by one, "How far is it from here?"

"About 150 kilometers." Someone replied.

Arrange the photos according to the direction of up, north, down, south, left, west, right, and east. You can see that the line is slightly inclined from east to west. Chen Yu found other photos with thin lines, and put them together in four, eight, and sixteen Stitched together into a large picture, the thin dark line crossed the seams between the photos, and also extended intermittently. Due to the resolution of the probe and the vegetation of the terrain, this rut-like trace can only pass through the snow. It is most noticeable when it is on the ground, but it can be seen that it is almost straight.

No matter what the topography is, it doesn't affect the direction of the straight line, as if someone cut a knife on the photo.

Standing in front of the table, Chen Yu straightened up, slowly frowned, and asked a question:
"How long is it?"

Everyone around was taken aback.

A staff officer held a drawing ruler in his hand, leaned over and pressed the ruler on the photo, aligning 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."

"Are there any photos over there?" Chen Yu asked, "Today's."

"Have."

The photos were delivered soon. The straight-line distance from Dianjiang County to Huanxiping is [-] kilometers away. There is no snow on the large flat land and valleys in the middle, but Huanxiping is on a mountain. There is indeed a clear rut in the white snow. mark.Chen Yu placed the aerial photos of Huanxiping and Sifang Mountain far away at the corner of the table. The photos at both ends of the table looked at each other from a distance, but the dim dark straight line in the photo just happened to match, which meant that it was the same line. Dianjiang County, Chongqing City extends all the way to Huanxiping, Guang'an City, but the head and tail are still missing.

Everyone present was silent.

"Is there any further?" Chen Yu asked.

"How far?"

Chen Yu's eyes scanned the map. No one knows how long this line is. If it continues in a straight line in the current direction, it must pass through the entire Sichuan Basin, from Guang'an to Mianyang, and even cross the Qionglai Mountains Go deep 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 the Nanmugou area today, just say it's urgent, and the speed must be fast."

If there is this straight line in the photos taken around Base 153, it means that the scale of this thing is at least 153 kilometers across, and it didn’t exist yesterday—the staff officers are faintly worried about this, so far no one The angels really invaded the Sichuan Basin, and the thing in the photo was silently hitting Huanglong deep into the hinterland last night-the remote sensing images sent by [-] soon confirmed this, which made everyone's hearts sink. Throughout the Sichuan Basin, there is also a thin black line in the photo from the other end, as if an invisible hand carved a straight knife between the white snow on the Qinghai-Tibet Plateau.

Right.

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Phytophthora stood on the side of the road holding a black umbrella, and the heavy rain fell to the ground, emitting white smoke.

He looked up at the sky, and the gloomy rain cloud hadn’t dissipated for a week. The continuous precipitation aggravated the humid climate. Mushrooms began to grow in the corner of the dormitory. After all, I didn't dare to put it in my mouth, for fear that my eyes would be full of villains.

The iron door of the warehouse on the opposite side of the road suddenly opened, stretched out a slender arm, and shook it vigorously with five fingers spread. Shanglu received the signal and greeted him with an umbrella.

Holding a bulging woven bag in her arms, the young girl came out from behind the iron gate, turned around and leaned against the gate with her shoulders, turned her head again, saw Phytophthora, her eyes lit up, and before he reached the eaves, she hurried to He got into the rain and jumped under his umbrella in two or three steps.

Shen Jiang was also caught off guard by the sudden shower. Also because of the humidity, all the sheets she washed in her dormitory were not dry, so she simply went to the logistics office to be replaced by a new set, but the heavy rain came as soon as it said, Shen Jiang The front foot entered the door and the foot came after the heavy rain. Within a few seconds, there was smoke, completely blocking the escape route, so she had to call Shanglu and ask him to bring an umbrella.

"Ah? Umbrella? Leader, I'm not your secretary. You asked someone else to give you..."

"Damn it! You are too late!"

Shen Jiang hid under the umbrella, stuffed the package into Shang Lu's arms, wiped the rainwater off his face with his hand, and took a sip:
"Day, this damn weather, let's say it."

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(Event preview: At 3:26 p.m. on March 7th, there will be an offline event and signing session between the authors Jun and Yuantong at Taikoo Li Fangsuo Bookstore in Chengdu. Students from Chengdu are welcome to attend.)