The reason for this is to reduce the pressure on the front of each wall, and also to facilitate the design of internal load-bearing columns.

The idea was contributed by the village chief Pei Di.

When it comes to underground construction, they're the real experts.

They can use clues to infer the direction of groundwater and the strength of the earth's leylines in the future.

The former is the most common factor of small-scale underground landslides, a certain cave, once the humidity is above the normal level all year round, especially if there are different degrees of water seepage, then the cave's collapse risk will rise sharply, and even some will directly become **.

The latter is the culprit of the large-scale cave collapse, and the underground gnomes and mountain dwarves are masters of caving, when digging caves, they do not dig casually, they will take the initiative to avoid the leylines that can be used as the main support point, and even consciously strengthen it, so that the entire dungeon becomes stronger.

As Sean had imagined at the beginning, when the digging purple worm got his hands on it, he only needed to find a straight line and dig the northern fortress in one go.

This is a bit too much to take for granted, completely ignoring the ever-changing nature of nature.

The exterior of the earth looks similar in many places, but the internal composition is different, and there are many kinds beyond imagination.

According to the hierarchical structure, the soil layer can be divided into: overburden layer, leaching layer, transition layer, sedimentary layer, parent layer and parent rock layer.

If it is classified according to soil quality, it can be divided into: soft soil, ordinary soil, gravel hard soil, soft stone, sub-hard stone, solid stone, and extra hard stone.

The soil structure is not static, and the conditions vary from place to place, and it is inextricably linked to the changes in the general environment.

All kinds of soil are also mixed together, maybe the first 100 meters are still stony, and the last 100 meters will become gravel and solid.

If you are simply rushing to dig holes, purple insects naturally don't need to think about these, they can just walk in a straight line, and they don't care whether they will collapse after they walk through.

If you want to excavate an underground passage that can be used for a long time and is not easily damaged by the natural environment, it is necessary to avoid some dangerous areas.

For example, the diving layer and the deep water layer, even the magic rocks, cannot withstand the erosion of water.

Another example is the desert area, at least it should not be built too shallow, and it should be made full use of the underground leylines as support points.

Because the surface of the desert area is too easy to change, a gust of wind can turn the basin into a sand dune, and the pressure on the underground will greatly increase, and if the passage is built directly under the sand, it can be easily crushed.

In fact, the general environment where the Shadow City is located is not the ideal environment for large dungeons, but is affected by the energy and laws that overflow from the spatial cracks, and the surrounding areas are seriously dark and regionalized, and the strata have become relatively stable, so that there is the current dungeon.

In fact, the entire Shadow City is centered on the spatial rift, which is circular in shape, and the farther away from the spatial rift, the less stable the stratum is, and the more difficult it is to build a large number of caves.

In other words, if the spatial rift was really completely sealed, the stability of the Shadow City would inevitably be affected.

Therefore, many of the residents of the Shadow City are not as strong as Alma's about closing the spatial rift, and some even sway from side to side.

If they don't handle it well, their future will be deeply affected.

This investigation found that Sean secretly remembered that if there was a disagreement with Alma because of the spatial rift in the future, he could start from this.

The biggest weakness of the camp of orderliness and kindness is that they are easily coerced by the overall situation.

Sean found that he was absolutely crazy in terms of infrastructure, and once he immersed himself in it, he was a little unable to extricate himself.

In the City of Shadows, he was not as simple as building his own mage tower.

After activation, Sean couldn't stand the complicated and chaotic layout of the Shadow City, especially the complicated path to Alma's Labyrinth.

As soon as the underground mage tower was a little eyebrow-raising, he mobilized the residents of the shadow city to carry out a major renovation of the shadow city, especially several main passages leading directly to the mage tower were the first to be opened, connecting the villages of most of the local residents, which would greatly increase their support for the construction of the mage tower and facilitate the transportation of materials, especially the mushroom ingredients provided by the mushroom people.

The construction of the underground tunnel leading to the Eternal Night Army is also on the agenda.

Don't forget, there's more than one digging purple bug.

After the construction of the Mage Tower in the Shadow City was running normally, Sean took the dragon soul and them to run through the energy pit again, and found another digging purple worm that was dormant there.

Except for the fact that it took a little time to find the traces of this burrowing purple worm in the complex cave, the whole process was very smooth.

The strength of this digging purple insect is obviously weaker than the one that was captured first, not only is it two models smaller, but its age is not known to be several times smaller.

The dragon soul's previous guess was correct, this digging purple worm was generated by the previous digging purple worm by splitting itself, and at the genetic level, the two sides are the same.

It's just that one thing is wrong, that is, this guy didn't split out temporarily to deal with Sean.

This kind of self-division not only requires a lot of energy, but also needs to consume terrifying flesh and blood, after the split, the mother and the child need to eat like crazy, at least have to devour tens of thousands of grassland cattle to make up for it.

When Sean first provoked the Digging Purple Worm, the other one was nearby, but he didn't have time to join the battle.

Sean didn't bother to use his brain to give too complicated a name for the digging purple worm, so he simply distinguished it by the serial number, the one that was done first was named No. 1, and the one that was done later was No. 2.

When Sean traveled thousands of miles to drive the No. 2 Digging Purple Worm back to the City of Shadows, it really shocked the residents here, because they had never seen two Digging Purple Worms infested at the same time, and no one had enough to eat to observe this terrifying underground predator up close.

Shock, followed by ecstasy.

Because they have personally felt the convenience of a controlled burrowing purple worm to build underground.

They mobilized the entire village, and it took several years of excavation work, and it only took a few days to dig the purple worms, and they only needed to spend a small amount of manpower, and they could refine on this basis.

The mountain dwarves mobilized the adult labor force of the entire clan, including those women, and the speed of forging steel bars could not keep up with the magic bricks and stones made by the burrowing purple insects in half a day.

Many times, the digging purple worms had to stop and wait for the construction progress of the mountain dwarves and underground gnomes.

The road tidying up in the Shadow City was carried out in the spare time of the digging purple insects.

The two digging purple insects work together to build a mage tower, which is obviously redundant.

When the No. 2 Digging Purple Worm arrived, he replaced the No. 1 Digging Purple Worm and focused on opening up the underground tunnel to the Eternal Night Army.

After opening the passage, all aspects of the resources of the Eternal Night Army Leader can come up, but it is only one aspect.

On the other hand, Sean wants to use the Digging Purple Worm to speed up the construction of some key facilities of the Eternal Night Army, and make full use of the energy ore mined from the energy crystallization pit.

Otherwise, even if he excavated more energy crystals, it would be meaningless.

When it took half a year to dig out an underground passage that was 1,500 kilometers long, and when it returned to the Eternal Night Army, the shock brought can be imagined.

Unfortunately, this is an absolute secret of the Eternal Night Commander, and this information has not been announced to the public at all, except for a very small number of high-level officials who know about it.

After returning to the Northern Fortress, the No. 1 Digging Purple Worm only stayed here for a month, connecting several areas in the Andes Mountains with many caves through underground passages.

The focus was on opening an underground passage from the Northern Fortress to the Andis Inland Lake, and then continuing south.

Passing through the mountains, we entered the city of Gechi, on the border between the Danube plain and the Carthusian hills.

This area is currently Marshal Tagore's defense area, and its main job is not to defend against the Kingsleys, but to open mines, which are the largest metal mines in the Eternal Night Army.

After the No. 1 digging purple worm arrived here, it was three years to squat.

In the past three years, its efforts have been absolutely terrifying, and the entire western front of the Danube Plain has been changed to revolve around it.

It first helped to set up an energy reactor here.

Then, around this energy reactor, a semi-automated, iron ore mining line was built.

After the amount of iron ore mining increased, large-scale steelmaking plants powered by energy reactors naturally came into being.

In his spare time, he also opened a passage deep into the Karthusian army to lead several rich mines, from where he continued to steal ore.

Fortresses, towns, and fortresses have sprung up like mushrooms after a rain.

The entire Western Front is impregnable, and if the Kingsley family has the courage to invade again, they will find themselves unable to move an inch, and there are nails everywhere.

An underground tunnel from the Danube Plain to the Huayu Plateau is also indispensable.

However, this tunnel was only opened secretly, and it was not put into use, because once it was known to the Duke of Brian family in the Garden Plateau, they were afraid that they would fall into madness, and they would not hesitate to start a war with the Eternal Night Warlords and cut off all trade with them.

The reason why the Duke Bryan family had previously ignored the small actions made by the Eternal Night Army Leader in the Flower Language Plateau and the cooperative relationship with the Warlock Alliance, and looked like a lonely self-appreciating appearance, was because they held the Flower Language Plateau Natural Danger, and no matter how powerful the Eternal Night Army Leader was, it was impossible to shake their dominance.

As for the Warlock Alliance, the two sides have never been in a slave relationship, on the contrary, in some aspects, the influence of the Warlock Alliance is above the local lords and nobles, which has already attracted the disgust of these people in power, if it weren't for the Warlock Alliance's too great influence among the scholars, they would have uprooted the top of the firmament long ago.

The Eternal Night Leader wants to take over the cauldron of the Warlock Alliance, and they can't wait to give it away with both hands, so how can they get in the way of it.

It's just that the same thing, in the hands of different people, plays a different role.

The Warlock Alliance is in the Flower Language Plateau, which is a huge burden for the Grand Duke of Brian's family.

But when it came to the Eternal Night Commander, it became a powerful boost to their development.

After four years of continuous construction and investment, the First International College opened by the Eternal Night Army Leader and the Warlock Alliance in Brother Port has begun to take shape, and has continuously cultivated two batches of political, economic, and academic middle and senior talents for the Eternal Night Army Leader, making up for one of their shortcomings.

Because of their accession, the military government model of the Eternal Night Army Leader gradually changed to a regular model.

In particular, the large-scale development of the Danube Plain has given them the opportunity to shine, and this kind of comprehensive large-scale construction is better than a fist.

Under their instigation and leadership, waves of Eternal Nights abandoned the familiar and comfortable life in the Andes Basin and went deep into the relatively wild Danube Plain, where they built villages, cultivated barren fields, and incorporated the crocodile people who had never migrated.

Villages and gathering points are blooming everywhere in the Danube Plain, taking root and growing.

The cultivated farmland is spread around these villages and gathering points.

In addition to the fact that the weather here is too hot and humid in summer, and there are too many mosquitoes and flies, which makes the Andes people who go out of the mountain for the first time a little uncomfortable.

Generally speaking, the Danube Plain, which has been transformed from a swamp, is fertile, and as long as the ploughing oxen are put on the plough, ploughed deeply, the ground is leveled, the weeds are cleared, and the seeds are sown, and there is no need to apply fertilizer, as long as the manager is diligent enough to clean up the overly dense weeds twice, the harvest will certainly not be too bad.

Not to mention those students who came from agricultural science, they have been researching better seeds, more convenient farming tools, more effective weeding methods, and more reasonable fattening farming.

A series of conditions have combined to create a bumper harvest for four consecutive years, which is getting better and better year by year, and is multiplied by the same amount.

Eighteen years of eternal night.

The Eternal Night Army Leader has made a turnaround in terms of grain, and its own grain output and consumption are basically the same, and according to the current development of the situation, there will be a surplus of self-produced grain next year.

Although the output and consumption are equal, the Eternal Night Army still eats a very large amount of food, and the food imports from the Plain of Asia Minor and the Huayu Plateau have never stopped, no matter how much grain can be transported, they will eat it without hesitation, of course, this is for the purpose of storing grain.

However, the grain trade market is shrinking year by year.

It's not that the harvest is bad, on the contrary, whether it is the plain of Asia Minor or the Huayu plateau, in addition to a small range of natural disasters, on the whole it is still a year of great abundance, even if it is a wandering beggar, there are few starvation deaths on the streets during the harvest season, and most people are often richer in kindness when they are rich.

But even the local lords and nobles who are no longer sensitive to politics can clearly feel the wind and rain that is gathering on the Ashane continent, and as long as they have a little political wisdom, they will give priority to filling their granaries.

The truth that the family has surplus food and does not panic is common in all worlds.

At that time, whether it is to sit on the ground and raise the price, or to exchange food for protection by force, or to hire people to protect themselves, it is a feasible strategy.

When the major lords and nobles sold the grain in their hands, the grain circulating in the market immediately decreased by as much as eighty percent.

It's cruel to say, but it's true.

The ruling pyramid of the Byronic Union has long been seriously deformed.

Ninety-nine percent of the wealth of the entire Union is in the hands of one in 10,000 people, whether it is existing or about to be produced.

The turmoil in the Byron Union is manifold.

The most direct cause comes from the very top.

In the third year of his ascension to the throne of King Laurie of Lancelot, despite the opposition of the royal family, he personally went on a pilgrimage to St. Eden, the holy place of the Holy See of St. Aether, leaving all government affairs behind, and practicing penance for three months in the oracle church, which is closest to the true God, to listen to the teachings of the God of Truth.

During these three months, the Holy See of the Aether went on a frenzy to tell all the followers and lords that King Laurie was the chosen son sent to the world by the God of Truth to save the people of the world from the apocalypse and the world from becoming hell.

The effect was so remarkable that many of the people who were not originally religious in the Holy See were converted.

Because this time the Holy See has not only sent a large number of missionaries, with holy power, but also the enemies of the true God, the undead.

These undead naturally come from the undead realm that is spreading in the Odin steppe.

The Holy See first showed the world the terrifying immortality of these undead in public, and then used their holy power to purify them in public, and then combined with their sermons that had been constantly revised for hundreds of years, the natural effect was amazing.