Early the next morning, Lin Yue rushed to Dongcheng with a thousand taels of silver according to Song Che's instructions. Song Che was worried at first that this female chivalrous warrior would not be able to handle things well, but he never thought that before noon, Lin Yue rushed back to Keju City.

"Smack!" She took two copies on the table and said proudly: "I thought it would be so difficult!" It turned out to be from a small man who repaired the waterways! What a thousand taels of silver have been wronged for nothing! "One copy is a culvert map, and the other is a document approved by the Ministry of Industry.

"When things are done, no amount of money is spent." Song Che began to study the culvert structure diagram carefully—to his amazement, the sewer system in Luoyang City was so magnificent, crisscrossed by twisting and turning channels, and it looked like a huge labyrinth at first glance.

Waterways are usually divided into two types, one is called

"Dark ditch", another is called

"Culvert", the former is equivalent to a drainage pipe, the volume is very small, and the direct flow of water does not pass through people; The latter is the aisle, which is built to a certain height, and the space is larger than some low houses; Generally speaking, the culvert is a tributary, and the culvert is the mainstream, and the urban rainwater first enters the culvert, then collects in the culvert, and finally flows into Luoshui.

Since the culverts extend in all directions, why not choose a location and dig a well from the ground to connect the underground tunnels to the east pier of the city.

Culverts are usually buried two feet deep underground, and can be dug in up to two days as long as the hoe is fast.

That night, Song Che used Sinan to mark the excavation point under a vacant land seven miles east of Keju City according to the direction on the structural map.

When the market opened the next day, a well-drilling team was invited to dig down from the marked point. Anyway, the construction of a drainage channel for Keju City is just a pretense, and there is an approval from the Ministry of Industry in hand, and no one pays attention to it, so Song Che specially built a shanty, and he can dig as much as he wants.

Taking advantage of the excavation time, Song Che asked someone to purchase some silk threads, hemp ropes and other items to prepare for the exploration of the culvert.

In order to meet the emperor sooner, he also accelerated the Luo Chao schedule, which was originally two games a day to three games a day, and added one game in the evening.

As a result, the ten-day qualifiers were shortened to seven days; Sixteen into eight, three days to complete, eight into four only two days, two days for the crown and the second quarter, Luo Chao can end within half a month.

At the second watch of the night. With the unremitting efforts of the well-drilling team, the culvert was dug two feet deep and finally dug open.

Song Che paid double the wages and told them to come back tomorrow to repair it. If there is no accident in the plan, to save the female dependents, you have to come out of here and transfer more than 1,000 people, and the opening must be wider.

"Lala......" lying at the mouth of the well and listening, according to the rare Juanjuan water flow. There is no sidewalk in the culvert, just a ditch, and it has not rained in Luoyang in recent times, it should not be too deep, but there is no sunlight all year round, and the water must not be clean, and snakes, insects, rats and ants are indispensable.

Song Che lit a candle and hung it down to the wellhead to test it, but the candle was not extinguished, indicating that there was air circulation.

Keju Castle is located in the west of the city, the terrain is higher than the east of the city, and the water flow is in a slow descending form. In order to speed up, Song Che tied twenty leather balls to the wooden plank, made a small kayak, and shuttled through the dark passage in the form of paddling.

In order to ward off snakes, insects, rats and ants, he made a special trip to buy some sulfur; He tied one end of the silk thread to the mouth of the well and the other end to the kayak, so that even if he got lost, he could follow the silk thread back.

"You can't go down?" After making the final preparations, Song Che looked at Lin Yue beside him. Lin Yue looked at the mouth of the black hole, obviously a little jealous, but sighed: "I can't let you go alone......"

"Don't worry, there won't be any ghosts down there." Song Che carried the kayak and began to descend the well along the wooden ladder. Entering the culvert, except for being cooler, it is not as damp and full of odor as imagined.

Ancient sewers, which were not usually used to drain sewage, were rainwater. The culvert is less than one zhang high, half a zhang wide, piled up with green tiles, making a semicircular arch, the black hole in front of the ground, I don't know where it leads.

Song Che first tested the depth of the water with an oar, less than three feet, and with the height of an adult, he could not reach his waist.

With such a water depth, the dinghy is just right. Song Che threw the dinghy down first, then stepped lightly into the middle, and after maintaining his balance, he lit a candle on the bow of the boat.

The candle flame is really limited, and it only shines on Xu Fangyuan. At this time, Lin Yue also stepped on the kayak, she clinged to Song Che's back, holding the sword and looking around.

"Sit tight, we're leaving." Song Che lit another river lantern and gently put it into the water. The river lantern flows down the river, and the light is reclaimed while the danger is predicted.

Song Che used his oars to prop up the brick wall, and the kayak escaped into the darkness with the help of his power. Song Che held Sinan in his left hand and the map in his right hand, staring at the front meticulously, and every time he turned a corner, he had to mark it on the map, and at the same time sprinkle a handful of lime on the wall to mark it.

"Song Che, why don't you speak? It's a black hole, and it's weird. Lin Yue couldn't help but open his mouth.

You've never seen a modern sewer, and there are all kinds of strange creatures in it. Some criminals even make their homes in the sewers to avoid being pursued.

It's even worse in foreign countries, and there are people who open nightclubs in the sewers. Of course, Song Che definitely can't talk to this ancient mother-in-law about these things.

Song Che said: "I'm concentrating on the map, the waterways here are complicated, if you go wrong, you may be discharged, and then we will have to drink the water of the Luoyang River." ”

"And what if you find the East City Culvert? Are you planning to save people tonight? Lin Yue asked. Song Che shook his head,

"I'm just here tonight to find out the route, and we have to think about it in the long run. The other party imprisoned a thousand female dependents, and the guarding force must be not small. "Silence, silence for a moment,

"Song Che, if you bring down the Jia family, are you going to leave Luoyang?" Lin Yue asked suddenly. Most of the godsons of the Jia family can't run away, but Master Jia has a deep background in Luoyang, and there is a chance that this stubble will not be able to move him.

If you don't cut the grass and don't remove the roots, there will be endless troubles. What's the aftermath? Song Che didn't know in his heart, but leaving Luoyang as soon as possible was a place of right and wrong, so that he could save his own life and their lives.

He hummed softly, counting as an answer.

"Will you come back?" Lin Yue hurriedly asked. Song Che looked back and smiled: "I won't come, can't you come to me?" Since ancient times, husbands have sung with women, but there are no women singing with their husbands. Lin Yue pouted: "But you are a son-in-law who sings with her husband." ”

"I-"

"Lights!" Without waiting for Song Che to speak, Lin Yue suddenly exclaimed: "River lantern! The river lantern is gone! Song Che was also frightened by this sudden exclamation, and he quickly thrust the oar against the wall to stop the kayak's advance.

Looking squarely, the river lamp leading the way has been extinguished, and only an endless void is left ahead.

"Whew!" Suddenly, a dark wind struck, and the candle on the bow of the ship was abruptly extinguished! Ghost blows the lamp!