Chapter 474: Alternative Materials ( 3 )

When she first arrived in the Northeast City, Yao Zhi promised to help the commoners find a way to make a living. Now that it was almost time to start her urban planning, it was crucial to ensure the materials used had a legitimate source.

Besides bricks, she also copied the method of making cement.

The materials for them were similar, primarily clay, limestone, and sand.

What’s more, there was an active volcano in the Five Dragon Mountains. The fly ash was collected by the System and stored in the warehouse.

After being processed by the automatic management feature, she could use it to replace part of the cement and improve the strength of the bricks.

When she finished copying the methods, she asked Lu Chi to design a brick and cement workshop for her. As for the materials for the bricks and cement, they could be found everywhere in Lu Qianxuan’s fief.

When she was done, she paid 2 million points for the designs and stored everything in her System’s storage. Feeling tired, she entered the shared manor to take a bath, had her dinner, and went to sleep.

At the same time, Gui Feng entered the military camp through the secret tunnel.

The entrance to the secret tunnel was located in the bamboo grove behind the temple. The tunnel spanned more than 12 kilometers and connected the temple to the northern side of the city.

This secret tunnel was dug by the previous City Lord a hundred years ago and was found by Lu Qianxuan’s shadow guards during their investigation.

Since he couldn’t be seen by the soldiers, Gui Feng had to avoid the patrolling soldiers and sneak into the General’s tent.

As soon as he was inside, he knelt on one knee, cupped his fists, and lowered his head. "Master."

Lu Qianxuan put down his brush and said, "Rise." Raising his head, he looked at his shadow guard and asked, "Did the person sent by Lei Feng visit the workshop?"

Gui Feng nodded and placed the folders on the desk while reporting, "Master, the person sent by the Lei family is a woman called Hu Niang. After she inspected the workshop, she gave this subordinate these and asked this subordinate to hand them to you."

While Lu Qianxuan opened the folder and checked the contents, Gui Feng continued, "Master, this woman is very knowledgeable. Besides these designs and plans, she also gave this subordinate a flashlight."

"Flashlight?" Lu Qianxuan asked with raised eyebrows.

Gui Feng didn’t hide anything from his master and took out the small flashlight from his bag. He handed it to him and repeated the explanation Hu Niang had given him before.

When he finished, he said, "Master, that woman said that this subordinate needs to put this thing under the sunlight first before this subordinate can use it since it’s running out of energy."

Lu Qianxuan was interested in the flashlight and pressed the switch. The next moment, a beam of light shot out from the flashlight and lit up the entire tent.

Although the light was not as bright as the one used by Hu Niang, it was more than enough to illuminate the entire tent until it was as bright as day.

Seeing this, he switched off the flashlight and muttered to himself, "The Lei family is indeed powerful. They were even able to use the sun as they wished."

"If we can get more of these flashlights, we won’t need to worry about failing to spot people sneaking through the southern area."

Gui Feng understood his master’s intention the moment he heard his words. After hesitating for a moment, he finally said, "Master, this subordinate thinks that it’s not impossible for us to buy flashlights from Hu Niang."

"According to our investigation, she is not someone from the Lei family and is only connected to them through marriage. Her mother was the maternal cousin of Young Master Lei’s father."

Hearing this, Lu Qianxuan tapped his fingers on the desk and fell silent. After a while, he nodded. "Since she is the Lei family’s distant relative, she shouldn’t refuse this business deal."

After all, no matter how much Lei Feng trusted Hu Niang, she was an outsider. She couldn’t access the Lei family’s resources and wealth at will.

As long as the price was right, Lu Qianxuan was confident that he could secure this business deal. With 20 million taels of gold, he no longer had to tighten his belt anymore.

Since this matter was not urgent, he returned the flashlight to Gui Feng and said, "You can go back first."

Gui Feng nodded and, in the blink of an eye, disappeared from the tent.

When he was alone, Lu Qianxuan finally had time to read the information written in the designs. Besides the drawing of the drainage system, there was also information about the materials used to build the drainage system.

Instead of the typical sticky rice mortar used by the military and the Imperial Court, the materials used were something called cement, HDPE pipe, and bricks.

There was no detailed information about these materials. But from the drawing, he had a rough understanding of their usage.

Thinking about his plan to build a military barracks in the southern area, he wondered if he could use these materials to replace the materials they usually used.

The more he thought about it, the more confident he became about the possibility. He quickly packed up everything and rode his horse to the General’s mansion.

Early the next morning, Lu Qianxuan visited his wife’s living quarters.

When Xue Ya’er saw her husband, she was taken aback and asked, "Husband, when did you return?"

Lu Qianxuan took a seat and replied, "I returned last night. Since you were already asleep, I just slept in the study."

Hearing this, Xue Ya’er nodded, and both of them had breakfast together.

After the meal, they went to the inner room, and Lu Qianxuan showed her the items delivered by Gui Feng yesterday. "Wife, take a look at these."

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