Thanks to the hard work of the artisans, an "industrial zone" quickly emerged to the southeast of the camp, and various factories and workshops were built on the basis of the large number of mineral veins discovered in the mountains.

The craftsmen shouted the trumpet of labor every day, making steel, calcining cement, and burning bricks, and were busy in full swing. Rowling and Shears also tried to build a prototype steam engine.

The principle of the steam engine is known to almost every science student, and many travelers have reinvented it before. However, the steam engine, built on the simple principles in the book, was not only inefficient, but also very prone to breakage.

It took Rowling and Shears a long time to improve the process that would allow the big guy to drive the machine to work.

In the eyes of others, this is just another machine invented by craftsmen, but Rowling and Lydia, who know the meaning, hugged each other excitedly and cried, saying "Invention across the ages!" The course of history! Long live the Age of Steam! They don't understand things.

Now that she has a steam engine, Rowling's straight-man mind immediately thought of assembling a generator and going straight into the era of electrification.

Think about lights, fans, telephones, how much life would have changed with these devices!

Unfortunately, this idea was quickly vetoed by herself. Although the principle of the generator is easy, how to process the magnet has already stumped her. Even if you can generate electricity, how to extract rubber to make wires, how to evacuate light bulbs, how to make batteries, these problems cannot be solved by knowing the principle.

Moreover, the biggest problem now is housing.

Fortunately, with the help of the steam engine, the output of various building materials has exploded. Backed by a lot of cement, Rowling decided to come up with her unique construction technique.

Usually, to build a house, you build a house with bricks layer by layer, or build load-bearing pillars first and then make partitions. But Rowling had several large pits dug in the ground first, leaving a rectangular clay box in the middle, and loading wooden planks for later use.

The planks were marked with various special holes and markings, and the craftsmen quickly fastened the steel bars with iron wires in designated places, and then surrounded the outside with a circle of planks.

Those craftsmen made dozens of such things on the spot, and the peculiar engineering method attracted many villagers of the Red Pavilion to come and watch. Many villagers were amazed: "Who is such a big coffin for?" ”

The craftsmen just laughed and did not say a word, concentrating on mixing the sand and gravel cement evenly and pouring it on the top of the box. Once the top was scraped flat, they happily walked away with their beer glasses. This inexplicable operation has not even been seen by Lydia, who is a traverser.

The next day, the residents of the Red Pavilion came to see the excitement again, but they didn't expect that the craftsmen didn't care about the cement coffin, but used a lot of "solid bamboo" cut in the jungle to build a 20-meter-high shelf. This time Lydia finally recognized that it was a crane, but she still couldn't figure out what the crane had to do with the coffin.

It wasn't until the third day that the craftsmen knocked on the "big coffin", removed the outer planks, and hoisted the cement box with a crane onto the already poured foundation.

That's when Lydia realized that it was actually the shape of a room. The craftsmen hoisted up the other rooms and spliced them next to each other, forming a one-bedroom layout.

The crane is constantly operating, and the room is getting more and more fighting. It is like building blocks, stacked layer by layer, and gradually has the appearance of a building.

Craftsmen use poured iron to secure the steel bars between the rooms, and then fill the gaps with cement. In just one day, an eight-story building with a capacity for more than 30 households stood in the middle of the town.

Although the exterior walls are still ugly cement colors, the stairs have no handrails, and the doors and windows are only holes, this magical speed has stunned the people of the Red Pavilion.

"How about this prefabricated assembly and construction method, isn't it amazing?" Rowling poked Lydia's arm, expecting a complimentary word on her face.

Lydia muttered in surprise, "That's amazing......"

Suddenly realizing that it was Rowling standing next to her, Lydia immediately ate the rest of the reputation. gave her a set of three blows of pouting, don't face, and flick her head and leave, and ran away in a puff.

Apparently she was still thinking about the two of them taking a shower together.

Lydia's snub hit Rowling hard.

In fact, in her previous life, she often fantasized about being able to have many girlfriends to chat with like a girl, and now she was finally reincarnated as a beautiful girl, but this pink girl's dream was ruthlessly shattered.

Her simple mind was seen by the great craftsman Hills.

"You really don't know what the princess is thinking?" Hills asked deliberately.

Rowling shook her head dumbfoundedly.

"Make a deal," Hills handed her a few sketches, "take this job, and I'll give you a little girl-to-girl wisdom." ”

Rowling took the drawing in a daze, and looked stupid, "What is this?" ”

"The leader of the Red Pavilion, the one they call not smiling. He looked at your house and suddenly gave me this thing. Hills stretched out his right hand and clenched it into a fist, a ritual of hooking between the dwarves, "What, do you want to catch it?" ”

Rowling looked at these pictures and became inexplicably excited.

"Of course." She didn't hesitate to bump fists with Hills, "I never thought that prefabricated buildings could be used in this way!" ”

Over the next few days, Rowling and a number of artisans came to the edge of the village to start making a new "big coffin", only this time in a much more bizarre shape than before.

After several days of rumbling with the crane, the villagers suddenly noticed a brand new section of the city wall outside the village. Sections of the wall were quickly put together, and it took only a week to protect the entire village.

The newly poured wall was 12 meters high, with four people walking side by side at the top, and battlement bunkers on the outside. The top wall is raised outwards to effectively defend against enemy climbing attacks. There are two layers of secret passages inside, which not only allow soldiers to pass through quickly, but also allow crossbow arrows to be fired through the reserved holes. Enemy towers are built every 50 meters, the upper floor is for lookout, and the lower floor can be stationed with garrison troops. The city gate adopts the design of the urn city, which can be regarded as a double layer of defense.

The wall won everyone's praise. Even Lydia, after climbing the city walls, marveled at Rowling's talent.

As she visited the city walls, someone brought her a package, and Lydia opened it to see that it was a few hand-sewn shirts and dresses and a letterhead from Rowling with rainbow farts written on it.

"This terrible straight man aesthetic." Lydia was dismissive of Rowling's gift, but her hands honestly took out her plaid skirt and happily competed on it.

Back in the room, she sang and danced in front of the mirror for a long time before she "reluctantly" agreed to "put aside disputes and develop together". Let's put aside the previous suspicions, and elevate the diplomatic relations between the two from "pasting your bear face" to "plastic sisters".