Under Zhang Tie's control, the trickle-like water element was poured onto the precision mold like the molten steel in the steelmaking furnace, condensed into the form of the mold, and the different molds were combined like the steel structure in the high-rise building and the complex differential mechanism gears, and began to have spirituality and completely different abilities, the cold is no longer cold, the useless is no longer useless, and the simple is no longer simple - this is the process of Zhang Tie's condensation of the water chakra.

When the last one was extremely complicated, as if the mysterious geometric figure with complex lines cut out of a diamond was finally poured and condensed by the water element controlled by Zhang Tie, Zhang Tie was shocked, and a familiar force appeared in Zhang Tie's body again, under the penetration and action of this force, Zhang Tie's whole body, as if it was automatically renewed, each cell became stronger and more energetic, and the battle qi of the void of the sea of qi surged like the sea water of the rising tide, and increased again. There are a few more stars in the sky that are conjured up by the spiritual power in the space of Zhihai, and the stars are shining brightly, and the brilliance of the two full moons in the space of Zhihai is even more brilliant and solid, almost like mercury flowing down......

After a long time, when the fluctuations of this energy subsided again, Zhang Tie, who had successfully advanced to the Nine Changes of the Earth and was only one step away from the phantom, opened his eyes.

Still holding the last empty water element crystal in his hand, Zhang Tie, who opened his eyes, glanced at the water element crystal in his hand, casually threw the water element crystal into the Black Iron Castle, and then got out of bed.

In front of me was a somewhat unfamiliar room, and everything in the room had the rich steel and steam style of the era. The room is made of steel frames, beams in the room. columns, basic partitions. There is also the floor, which is made of steel, only the wall of the room, which is pine, but the pine has been some years old, and the pine wood that has been treated with antiseptic treatment shows a bright yellow luster like a lake under the baptism of the years, and this luster, in this room full of steel, brings some warm tones. A row of wrist-thick steam pipes ran against one wall of the room, like the organ pipes of a church, and the exposed part of the pipe was connected to a row of rough but very durable radiators, which were already in March, and the radiators were naturally turned off, if in winter, in such a room, if there was no heating. It's going to be harder.

The room is not big, at least for Zhang Tie, the whole room is divided into bedrooms. Living room, study, toilet and workshop. With a total of less than 150 square meters, it is a serviced apartment for bachelors of a high standard. Zhang Tie has been here for more than a month. Everything in the room is functional and ordinary, and only in the study and workshop of the room can one feel something extraordinary here.

In the study room here, there are all professional books such as "Metalworking Manual", "Alloy Theory Elementary, Intermediate and Advanced", "Steam Dynamics", "Self-cultivation of a Rune Refiner", "Crystal Energy and Mechanical Coordination Parameter Query Dictionary", "Overview of the Steam City Defense System of Class A City" and "Steam World Magazine Issue XX" and "Taixia Rune Refiner Union Thesis Yearbook in 904 Black Iron Calendar", and there are thousands of metal samples in the workshop here. There is also a set of high-end small alloy smelting crucibles, a multi-functional steam processing machine, a composite integrated metal processing workbench and a set of differential machine coding input ports that can call the differential machine resources in the hotel, so that people who live here can call the computing power of the differential machine here at any time.

The 150-square-meter apartment, just this workshop, occupies almost half of the space, and as long as you look at the layout of the study and workshop in this apartment, anyone can easily come to a conclusion - this is an apartment specially prepared for rune refiners.

Indeed, this is an apartment for rune refiners.

Rune refiners are also high-level professionals of human beings, and the scarce number and esteemed status of this high-level professional determine that in many continents and subcontinents of the human race, it is difficult to find an apartment specially prepared for them in a hotel with the color of mass consumption, full of rune refiners, unless the hotel owner's brain is broken, otherwise, no hotel owner will be thankless to prepare such a room for the rune refiner, because to prepare such a room, In addition to the huge investment, after the construction is completed, whether there will be a rune refiner to stay in such a hotel is a question mark - a rune refiner, as long as they start from the advanced golden hammer master, no matter where they go, they will no longer lack money, they are also the major wealthy families and local forces vying for high-level talents, such people, have begun to have their own special studios and workshops, generally do not do such research in a place like a hotel.

There is only one place in the entire Eastern and Western Continents that can build special hotels and rooms for rune refiners, the Tiangong City of Taixia Bingzhou.

It only takes a well-known saying in Taixia to see the status of Tiangong City in Taixia and the human race - Taixia Zhanbao Jiatianxia, Bingzhou Zhanbao Jiataixia, Tiangong Zhanbao Jiabingzhou.

Tiangong City is a big city with the strong imprint of this era, a unique first-class city, in the eyes of Taixia and all the steam engineers and rune alchemists of the entire human race, Tiangong City is their holy land.

The exit of the human race into the Earth Metaverse is in Bingzhou, and the special location of Bingzhou and the history of the two holy wars have created Tiangong City.

After leaving Kangzhou City, Zhang Tie came to Tiangong City, calculating the time, he came to Tiangong City, it has been almost two months.

Zhang Tie and Lu Yanyu said that his whereabouts were secret-strictly speaking, this was indeed a secret, because the purpose of Zhang Tie coming to Tiangong City alone was to be able to create a weapon that could kill the demon knights, and completely use the power of steel and steam in the hands of the human race to pull the highest-end force of the demon race from the sky to the ground.

Zhang Tie wanted to let Taixia's city, let the ordinary people of Taixia, have the power to fight and even kill knights - this is an absolutely crazy idea.

Zhang Tie rarely has any ambitions, but this idea is definitely one, and at this time, this may not be an idea anymore, but has become an obsession in Zhang Tie's heart......

From Zhang Tie's entry into the war zone, seeing the countless ordinary people who left their hometowns to escape the war, seeing the countless cities that were abandoned and destroyed after the walls were cleared, and seeing the frenzy of the demon army sweeping through the states, this obsession appeared dimly in Zhang Tie's heart, and after eating the last Gujing tofu in Xiangshan City, this obsession suddenly became clear.

Moreover, Zhang Tie has found a direction for ordinary people to confront and even kill the knight's power - kinetic energy strike!

Your own kinetic energy strike comes from your own divine master's ability, and if you can artificially create the speed and energy required for that kinetic energy strike through some kind of mechanical equipment or steam power device, then this goal can be achieved.

Before the cataclysm, human beings had already invented kinetic strike weapons, and today, Zhang Tie wanted to try everything he could to see if he could make kinetic strike weapons appear in the world again. Once the Terrans really master the kinetic strike weapon, as long as every A-level city in Taixia has such a weapon, the balance of this holy war will be completely reversed, and the method of this holy war will also change.

If there was a place for the entire Terran to try to make devices and weapons related to steel and steam, Taixia's Heavenly City would definitely be the first to be smashed.

Coincidentally, Tiangong City happened to be in Bingzhou, just behind Zhang Tie, the general of the commission, and after visiting Tiangong City when he was inspecting Lu Yanyu in a flying boat, Zhang Tie had already made a decision in his heart at that time.

After coming to Tiangong City for two months, there was still only one concept and prototype of kinetic energy strike weapons in Zhang Tie's heart, but Zhang Tie squeezed the time in his free time and advanced to the realm of nine changes of the earth...... (To be continued.) )