Emperor Verne did not like this situation, and he urged Emperor Hugo to return to the battlefield as soon as possible.

Soon after, Hugo and Verne made the decision to expand the front once more, carrying out a scattered search and attack on Isaac's partisans. Soon, this search had an effect, and some of Isaac's guerrillas, who had been hiding deeply, were found and forced to fight with the large army, and for a time, Isaac was defeated one after another.

The successive victories finally gave a glimmer of hope to the tired coalition forces, and their morale was also boosted, and the officers who had been at a loss for the future finally regained their former spirits.

"It's simple. ”

Wang Wei's father-in-law sat in the middle of a pile of officers and said.

"If we make them feel so dazed that they start to switch from offense to defense, won't we be able to achieve our goal?"

Isaac's current plan is to continue to increase the internal friction of Verne and Hugo, and use only 300,000 people to contain the other party's 2 million people, and the other party's logistics and supplies will bring a very heavy burden to the country. And Isaac's burden is basically digested in the country's latest profitable projects, although it is slightly consumed, but compared to the enemy country, it is almost negligible.

-=-

Wang Wei's plan had reached the most critical stage, the moment Du Ruiya entered the Gray Dragon Mountain Range, the huge thunderstorm almost made half of Isaac's people hear, the terrifying roar and the smell of the sky made people very strange, what happened in the Gray Dragon Castle. And the residents who were originally in the Gray Dragon Fort were also very strange, when they heard the roar that had not dispersed for a long time, they immediately ran out, only to see that the huge World Tree canopy had actually extended to the Gray Dragon Mountain Range!

Despite the initial loss of some branches, the roar slowly faded as the Tesla elves poured into the World Tree in a predetermined order, and a low hum could only be heard as they got closer. Although the Tesla Elves could not leave the range of the Gray Dragon Mountain Range, they could attach themselves to the canopy of the trees, allowing the electricity generated by their bodies to continue and permanently converge to the center of the World Tree.

Although I don't know how many of these elves there are, according to Wang Wei's visual measurements, at least the electrical energy they produce is much more powerful than ordinary lightning strikes, and not only that, but their electrical energy is simply endless! It can be said that as long as the Gray Dragon Mountain Range does not disappear, then they can always discharge!

The Tesla elves who live among the leaves of the World Tree are very happy, because they have always floated aimlessly in the air, and there has never been a concept called home, and the countless leaves of the World Tree have just become their new home. They scrambled to communicate with Duria and tell the World Tree their ideas.

Duria found that these elves were very strange, as if the more they gathered, the higher their intelligence, and the first elf alone was like a protozoa. Once they exceed a certain level, they become 'smart'. But when there are too many of them, it's strange that their aggregates will collapse.

After a few days of grinding, Duria was already able to control the amount of electricity that passed through her body, and according to Duria, any force of nature seemed to her to be instinctual. As a result, she was able to easily control a tree root into a cable to provide a steady supply of electricity. After a certain amount of testing, Wang Wei found that the supply of this kind of electric energy is extremely stable, as long as Du Ruiya notes the power supply level of the last time, there will be absolutely no mistakes next time.

Now that the power supply has stabilized, Wang Wei has to prepare for the application of certain things.

The operation of the railway is a simple, but also complex process, and the construction of the railway must first have cars. The test of the motor has been determined, the standard has been formulated, and the research team of Luo Weier is constantly observing the operating life of the motor, and the longest running motor has a rated power of one kilowatt and has been running continuously for three weeks.

Everything is very satisfying, especially in terms of how to carry out remote power transmission, Wang Wei has found a way that he has never thought of.

One day, someone wandered back and forth in the laboratory, and because he wanted to pretend to be dead, he didn't dare to go up to the surface, so he had to wander back and forth in the underground laboratory.

Long-distance power transmission is not a difficult thing on the earth, but it is a problem here, after all, Wang Wei can't really go around to build elevated or something like that, it is too easy for that thing to be destroyed, and it does not meet the security needs of Wang Wei.

Just as Wang Wei wandered to those laboratories where halos were studied, Wang Wei was attracted.

The working principle of the halo is actually very simple, which is to use his huge energy to break through the space and pull a small star down from the astral plane. And in terms of the nature of power, after calculation, the magnetic storm turbulence above the Gray Dragon Mountain Range has the same effect. And what's important is that the light that is only one meter thick when the halo is working can hit all the way to the astral boundary!

And Wang Wei knew that on the Gray Dragon Mountain Range, which stretched for thousands of miles, electricity could shuttle in it at will.

If, just if you could use this energy to transmit it, wouldn't that save you a lot of trouble?

Wang Wei's whimsical idea immediately made Luo Weier very much agreed, and she also thought that such a plan was feasible. She decided to start experimenting right away.

After the halo was just obtained, including the two magic web nodes, a clipboard, an alchemy master, and a group of shadow girls dismantled and analyzed the halo. The composition of each part of the halo is recorded in detail, and it is almost impossible to replicate such a thing, but it is not impossible to imitate it. After all, no matter how complex this thing is, it is man-made, and except for some key parts, a simple annular force field generator is still easy to copy. After testing several small prototypes, Wang Wei found that this thing is very practical.

For example, if the object is aimed far enough away, then a precise long-range lightning strike can be formed. Although the range may not be very large, it is estimated that there are not many energy-saving people in a house who can withstand this sudden thunderstorm. However, the drawback is also obvious, once it leaves the range of the Gray Dragon Mountain Range, this thing has no meaning at all.

After several small-scale long-distance transmission tests, Wang Wei finally figured this thing out completely. Leave everything to Luo Weier and the others to get it done thoroughly, and Wang Wei himself will go to design a suitable route.

If you talk about taking the train, in fact, for Wang Wei, it is much easier to go underground than to go above. Because the ground is not flat, it is unbearable to dig holes and build bridges across mountains and rivers. Moreover, it is very troublesome to be exposed to the wind and rain, and the messy maintenance of the expansion coefficient is very troublesome, and such a large-scale ground construction will definitely attract the attention of others, which makes Wang Wei very uneasy. So, he made a very decisive decision.

Go underground.

For this plan, he specially asked Terra to take his ring to the Ancient Arena, and got dozens of fossil insects, and the fossil insects who got the instructions of the Fossil Insect King were very obedient and began to make holes according to Wang Wei's instructions.

The fossil worm has a very sensitive organ in its body, which is extremely sensitive to precise changes in the geomagnetic field, and once it leads him to a suitable path, it can immediately move in that direction straighter. The ability of fossil insects to burrow seems to be one of the talents, they do not rely on brute force to dig, but can directly melt the stone, so it is called fossil worms, after the melting of the stone will cling to the cave wall, forming a hard rock wall, where they pass, the thickness of the stone wall may be more than three meters! This is why the fossil worm keeps burrowing underground, but those holes have never collapsed.

For the first route, Wang Wei chose to go from the periphery of his Gray Dragon Fort to the Lion City in Lingnan County. In general, horseback riding takes a day. Therefore, Wang Wei has to use this distance to test whether his plan can be implemented. Moreover, this distance is not too long, and Wang Wei does not need to build a relay station for electric energy.

The tunnel was laid, and the construction of the World Tree began immediately. Long before Wang Wei's plan began, a large amount of steel had been transported to the periphery of Gray Dragon Castle, and he was still doing so, Wang Wei originally used it as a strategic steel reserve base, but now he was about to use it.

Duria used her roots to spread along the hole, tightening the rock and dirt to further strengthen the cave walls. Steel is then used inside to form a layer of pipes. In the future, locomotives will run in the pipes, for aesthetic and safety reasons.

The rails are not made of ordinary steel, because the steel here is not as strong as Wang Wei knows. All tracks are made of titanium alloy, after all, the titanium alloy here is much stronger than the titanium alloy that Wang Wei knows. Using steel as the base, there are two titanium alloy rails inlaid in the middle, and the base is disconnected from the middle, Wang Wei tries to directly use the rail power supply method.

After all, the electricity here is unlimited, and Wang Wei doesn't need to save too much.

On this basis, Wang Wei began to build the first electric locomotive on the mainland.

With the basic scale, it is very simple to increase the power of the motor, and Wang Wei quickly made an electric motor of at least 6,000 kilowatts, which has good traction power. Wang Wei once saw the internal structure of electric locomotives and knew that electric locomotives are actually very complicated inside, but now, they have found a new way. That is to use the Star Iron Girl as a driver, and they can gradually change the amount of power entering the motor by communicating with the Tesla Genie. This capability has been proven in trials and can be used on locomotives.

From the prototype to the entire front of the car, Wang Wei conceived many shapes, and always defined them as the bullet shape he was most familiar with, after all, this is the most aerodynamic.