Heming Jiuyuan

【Eight】

In July, the cicadas sang the pinellia.

Gu Shui stood on the eaves of the back porch and looked into the distance, raised his left hand to cover his eyes, blocking the bright brilliance of the morning sun.

In his right hand, he held a plastic electronic screen with a somewhat "weird" topographical map on it.

This picture was given to him by Han Heming yesterday evening.

Yesterday, Han Heming and others had an in-depth discussion on that geometric diagram.According to the idea of ​​hiding coordinates in Sudoku, it can be inferred that the geometric map should hide the specific location of the data. In this case, the geometric map must be related to the terrain of Shuangshan Village.

Therefore, Han Heming asked Gu Shui to find various floor plans of Qingshuang Village, including housing distribution maps, topographic maps, and so on.

Han Heming overlaid these planar maps and geometric maps, and conducted a comparative test, and found that the geometric figures and these topographical maps overlap to varying degrees.

For example, starting from the upper left corner of the housing distribution map, six small buildings are built around an old tree, forming an isosceles triangle;

Going down the road, there are four houses built back to back... The houses of more than a dozen families are arranged in almost the same order as the geometric figures.

As for the topographic map, compared with the geometric map, the position of the isosceles triangle is a higher slope; the position of the rectangle is a gentle terrain...

"It looks like..." Jinyu looked at the composite picture on the electronic screen, and the corners of his mouth twitched twice: "Teacher Han is a master of abstract art."

Han Heming was inexplicably embarrassed, "Cough, no matter what, our general direction should be right."

"But where will the data be placed?" Chu Yu slid the composite map, "If this represents a house distribution map, then it means that the data is placed in the house? But if it is a topographic map, where will the data be placed? Underground?"

"And the strangest thing is..." Gu Shui tilted his head, "I have been in the village since the outbreak of the end of the world. If your father came to hide materials, I would not know about it."

He looked down at Gu Di in his arms, "Gu Di is very sensitive to humans, at least he will respond."

Gu Shui's words made several people fall into silence again.

"And this arrow..." Xu Yuan pointed to the arrow in the lower left corner. "What's the meaning?"

Chu Yu rubbed his temples: "I'm really worried, the clues left by Professor Han are too vague."

Han Heming: "Is this circle the square in the middle of the village?"

"Yes, the village chief will announce any important matters there, and the villagers also gather there during the festival."

"Otherwise, shall we go here first?"

Several people came to the circular square. The square occupies a large area and is also paved with bluestone, but it is more detailed than the bluestone road in the village, and there are some patterns inlaid with broken pebbles on it.

Gu Di squatted between Han Heming and Gu Shui, hooking one of his little paws.

"It doesn't look like anything special." Chu Yu rested his long arm on Gu Shui's shoulder, and glanced at the goldfish beside him: "I said, it's the village you live in anyway, so you don't know where to hide things?"

Gu Shui felt uncomfortable under the pressure, and slapped Chu Xun off: "I don't know."

After searching for a long time, I found nothing.

Han Heming sat on the bluestone slab, holding Gu Di in his arms who was addicted to gnawing his nails, and looked at the picture in his hand with a confused face.

Could it be that we got it wrong?So what do these graphics represent?

At this time, Gu Di, who had been peacefully in his arms, suddenly rushed out and went straight to the center of the circular square.

When the little paw lifted and scratched, a round stone slab with a diameter of about half a meter hit the ground with a "Kang Dang". Then, a big black mouse appeared on Gudi's paw.

This movement was not small, Xu Yuan flashed over at the first time, and when several people approached, he discovered that the round stone slab was a manhole cover for a sewer.The mouse probably climbed up the sewer.

Han Heming noticed the round stone slab from the very beginning. It was black in texture, which was different from the surrounding stone slabs.

But he would never have thought that this would be a manhole cover. After all, it was quite strange to build the sewer in the middle of the village.

"The sewer..." Han Heming kicked the mouse that Gudi was going to put into his mouth, and hugged him into his arms regardless of the little guy's protest.

"Why did you build a sewer in this kind of place?" He asked Gu Shui, who was putting the round manhole cover back.

In fact, what Han Heming meant was that such a place where the whole village gathers should be avoided as much as possible if a sewer is really going to be built.

"Because this is the lowest place in the whole village." Gu Shui didn't care.

The west of the United Guild area is mountainous, and the mountains are connected one by one, and the crustal movement is relatively frequent. This has caused Qingshuang Village, which is backed by Qingshuang Mountain, to sink into the basin.

Therefore, for Qingshuang Village, the drainage system is very important.The village not only has water canals on the ground, but also many drainage pipes underground.

"How many manhole covers like this are there?"

"Twenty or so." Gu Shui thought for a while and replied.

Is it...

Han Heming suddenly thought of something: "Where are they all distributed?"

He took out the topographic map: "Can you mark it?"

"Uh..." Gu Shui looked at the picture, and suddenly froze. "No way..." He seemed to understand Han Heming's conjecture in an instant.

Han Heming: "Nothing?"

"The distribution of manhole covers... seems to be at the corners of these figures..."

Han Heming was startled, is it really underground?

"Do you have a floor plan of the underground drainage system?" Xu Yuan asked, "Also, where is the entrance to the drainage system?"

"The floor plan of the drainage system...should be there, I'll look for it later..." Gu Shui looked at the topographic map, and suddenly his eyes widened, "The position of this arrow seems to be the position of the entrance!"

"Are you sure?" Han Heming grabbed Gu Shui's hand. Seeing that the young man seemed not sure, he felt a little anxious, so let's take a look. "

Gu Shui nodded and said, "Follow me."

Based on memory, Gu Shui led everyone out of the village and walked southeast.

When the few people found the place, the purple clouds had already filled the entire sky, and the golden wu sank, leaving only a bend to land on the roof.

The entrance of the drainage system is located in the southeast of the village, several hundred meters away from the entrance of the village.

"How did it become like this?" Gu Shui murmured.In front of him was a piece of ruins, broken rocks and broken wood were piled up randomly on the ground, and the rocks on the ground were cracked and raised.

Walking two steps closer, you can see that a large piece has sunk in the middle of the ruins. "This is the entrance, but why did it collapse?"

Xu Yuan squatted down and turned over the exposed soil and rocks on the ground, "This place should have just collapsed not long ago."

He stood up and looked at the people behind him, "The soil quality is still fresh compared to the surrounding ones."

"It just collapsed not long ago..." Gu Shui was stunned for two seconds and said, "About a week ago, there was a small earthquake here. Could it be that time that it collapsed?"

What kind of small earthquake can shake like this?

After Gu Shui finished speaking, he also felt a little strange—the house was fine, how could the entrance be collapsed by such a coincidence?

Even if the drainage system creates an underground cavity and collapses the entrance, why is the underground waterway in the village fine, but this entrance is blocked?

Xu Yuan remembered that the topographic map of Qingshuang Village was marked with the words "Earthquake-prone Area". Since it is an earthquake-prone area, so many underground waterways were built...

It's really weird.

"Well, let's go back first..." Han Heming handed the composite map to Gu Shui: "Tomorrow morning, you can mark the exact location of the manhole cover and the floor plan of the drainage system."

"it is good."

Goldfish: "Are you going back?"

"Well, it's too late today, and it will take a long time to clean up the gravel, why don't you come early tomorrow morning."

Just as everyone was about to go back, Xu Yuan, who was standing at the end, seemed to have a feeling and looked back at the dark depths of the woods.

"how?"

"Nothing, let's go."

……

After Gu Shui marked the position of the last manhole cover, he came to the underground drainage entrance as agreed.When he arrived, Xu Yuan had almost cleaned up the entrance.

The entrance is a straight up and down shaft, and there are ladders on the side of the shaft, but because of the serious damage, all the ladders have been broken, and half of the shaft has collapsed.

"Here you are." Gu Shui handed the composite map to Han Heming.

"Thank you..." Han Heming took a look at the picture and raised the corner of his mouth: "If the information is really hidden underground, you will be of great help."

What he said was sincere, maybe he was about to approach an unknown truth, his brows and eyes were full of anticipation.

It's like the sunrise this morning.

Thinking of this, Gu Shui's face suddenly turned red, he looked away, and nodded indiscriminately.

"Okay." Xu Yuan walked up to Han Heming, sandwiched between him and Gu Shui. "Do you want to go down?"

"Hmm..." Han Heming marked and drew on the electronic screen, "Each graph is actually a water storage pit, take a look..."

He called several people together, "Look at this triangle, there is a manhole cover at each of the three corners, and the three sewers form a triangular prism-shaped water storage pit, and the rest of the sewers are the same.

Each vertical pit is connected by several sewer branches. There are 23 sewers in the whole village, forming six water storage vertical pits and one drainage vertical pit—the vertical pit under the square. "

"There are more than 20 sewer wells in a village of more than a dozen families..." Chu Hou looked at the village not far away, "Does it often rain here?"

"No." Gu Shui uttered a word with difficulty, "You should know that this is located in the west, and the rainfall is actually not much."

"That is to say, even if Qingshuang Village is low-lying and belongs to a basin, it doesn't need such a large drainage system at all?" Jinyu asked.

"Do you know where the groundwater in Qingshuang Village ends up going?" Han Heming squinted his eyes, "It goes into the Li River at the foot of Qingshuang Mountain."

Gu Shui nodded and said, "Li River is the closest river to Qingshuang Village."

"So, this means that the total length of the underground waterway in Qingshuang Village must be more than 5000 meters, and the distance from here to Qingshuang Mountain is only 5000 meters."

Han Heming showed you the section diagram of the drainage system. "If the underground waterway is really connected to the Lihe River, then my father probably entered Qingshuang Village through the waterway and hid the information here."

Xu Yuan fastened the protective device on Han Heming, and handed the assembled gun to Han Heming with the ammunition replaced. "Come on, let's go down and have a look."

"Wait a minute!" Chu Yu yelled.

"That's how we go?"

"What do you mean?" Goldfish asked.

Chu Hou swallowed his saliva: "There are mice below..."

goldfish:"……"

"Are you afraid of mice?" Gu Shui looked terrified.

Xu Shi was irritated by the young man's expression, Chu Yu sneered: "Ha!" He found out a protective mask from somewhere, and put it on his head with a click, "I'm just afraid."

Gu Shui: "..."

Goldfish: "Don't pay attention to him."

"Let's go." Xu Yuan took the lead, and behind Chu Yu's hall, a group of people hung on the automatic lifting rope and slowly slid down into the shaft.

As it descended a little bit, the light became more and more dim, so Xu Yuan turned on the fluorescent light on his wrist and shone down along the rope.The white fan-shaped beam of light only extended down a few meters before being swallowed by the darkness.

Looking at the bottomless black hole under his feet, Xu Yuan couldn't help but tighten his heart—is there really any antidote information in it?