The Caspian Sea is a very strange place, and the name of the lake is Haishi.

Moreover, the area is dry and rainless, and the evaporation of lake water is much greater than the amount of injection.

Theoretically, such an inland lake would sooner or later dry up due to evaporation and become a desert.

In reality, however, the water level of the Caspian Sea is not decreasing as the lake volatilizes, but is still rising.

This is because, in addition to the hundreds of rivers along the coast, there may also be underground rivers or subsurface seas at the bottom of the Caspian Sea that are connected to the Black Sea or the Mediterranean Sea, which means that the lake, which covers an area of hundreds of thousands of square kilometers, never has to worry about drying up.

Bai Yuqi and his avatars jointly cast a spell, and the [Extreme Super Demon - Reshaping the Earth] cast reshaped the terrain of the northern Caspian Sea, raising a circle of towering flat-topped craters, completely enclosing the island of Chechnya, where the plane passage is located.

This is because the flat submarine plain in the northern part of the Caspian Sea has an average depth of about five meters, and you can even wade through it in the shallowest places.

As a result, civilizations on the other side of the plane passage could wade directly to the northern shores of the Caspian Sea once they stepped out of the island, which was about 200 square kilometers in size.

In order to prevent creatures from unknown planes, they will invade the natural environment of the Datang space-time plane.

Bai Yuqi simply enclosed this place for defense, and even the sky above the flat-topped crater was covered with a layer of [forbidden air domain] to prevent flying creatures from escaping.

It's not that Bai Yuqi is too careful, but that invasive species are too damaging to the natural environment, such as crayfish...... Uh, well, let's not mention this stigma in the invasive species world, let's talk about bullfrogs...... Uh, Fushou snail...... Well, forget it, let's study how to prevent species invasion.

Bai Yuqi and the avatars jointly launched the [Reshape the Earth], and a flat-topped crater with concentric circles around Chechen Island was erected, and the [Forbidden Sky Domain] formed a relatively closed space.

Even if the invading creatures of the plane break through the first line of defense, they will only face another flat-topped crater, and they will circle the Colosseum-like space until they die.

The chaotic environment created by the plane fog on the island of Chechnya is calming down, and you can even see the faint picture behind the thin plane fog.

Bai Yuqi, who returned here, noticed the changes in the environment around Chechen Island, first of all, the large number of seagulls that originally inhabited Chechen Island disappeared without a trace.

Although the area of the Caspian Sea is very huge, it is very peculiar that there are not many small islands, most of which are still concentrated in the shallow waters of the submarine plain in the northern part of the Caspian Sea, and Chechnya is already the largest island in the Caspian Sea.

As a result, these small islands have become habitats for Caspian Sea birds, and the density of birds is very large.

When Bai Yuqi first came, the flock of seagulls alarmed by the fog of the plane almost obscured the sky, and there was no place to stay on the island.

But now, there is not a single seagull left on Chechen Island, which means that with the condensation of the plane fog, the plane passage is gradually taking shape, and the seagulls trapped in the plane fog have been sucked into the opposite world!

Secondly, due to the different nature of the natural energy of the two worlds, a colored mantle similar to the aurora was formed over the island of Chechnya under the conflict.

Although it looks very beautiful, in fact, this energy light curtain is very dangerous, and the slightest mistake can be crushed by the chaotic and violent energy flow.

As a result, no one can use energy to attack in the area covered by the light mantle, as the turbulence of the conflicting planes will disrupt the energy structure.

Bai Yuqi had tried, and the energy rays he released were not straight in this area of energy turbulence, let alone spell energy that needed to be finely controlled.

What's more, Bai Yuqi can clearly feel that the free arcane particles of the Datang space-time plane are leaking to the opposite world, and even formed a funnel-like energy vortex near Chechen Island, which shows that the opposite side may be a demonless plane!

Just as water flows from high to low, arcane particles spill from areas of high concentration to areas of low concentration.

After such a long period of occult infection, the Datang space-time plane has been upgraded from a "demonless plane" to a "low demon plane".

And the concentration of arcane energy in the opposite world is actually lower than that of the Datang space-time plane, which is both good news and bad news for the Datang space-time plane.

The good news is that you don't have to worry about high-magic creatures like the Brain Beasts running across the street.

The bad news is that leaking the arcane particles of the past is likely to attract the creatures of the entire world on the other side!

It's not that creatures from the lower demon plane are no threat to the high demon plane.

The planes are different, the biological threat is also different, and no one knows what danger the creatures on both sides are to the other.

This is also the reason why Bai Yuqi is so nervous, and does not hesitate to use a large amount of money to build a defense line of the Caspian Sea land wall to prevent the invasion and spread of alien organisms.

In the process of waiting for the plane passage to take shape, the civilized forces of the Tang Dynasty have gradually gathered near the Caspian Sea defense line.

In addition to the Tang Western Expeditionary Army, the soldiers and horses of Dashi, Persia, and Byzantium have all been stationed near the Caspian Sea one step in advance, and the beastly army of the Tianzhu Ring Sun Dynasty is also on the way.

Once the multinational coalition is in place, it will amass millions of troops on the Caspian defense line, which will be a huge pressure on logistics.

It is certainly not possible to expect countries to pay for their own supplies, and even if they are able to produce food and straw within their borders, the flow of goods is hindered by long transportation routes.

This caused all the logistical needs to be pressed on the Yingzhou side, forcing Bai Yuqi to find a way to expand production, and at the same time, he also divided a large number of white vortex avatars to summon items for the armies of various countries.

Fortunately, with the arrival of the Tang Dynasty's Western Expeditionary Army, the [Tiangongmen] Infrastructure Corps also came with the army and could help the countries build transportation lines...... Along the way, they have built a "Belt and Road".

The Silk Road in history is simply weak compared to this avenue that has begun to be called the "Zhengxi Road"!

At the same time, the appearance of the Tang Dynasty's Western Expeditionary Army also stunned the Western countries, although they knew through merchants that there was a powerful empire in the far east, but they did not expect that the Eastern Tang Dynasty had become so strong.

The army of more than one million people was equipped with a full set of steel armor, and even the war horses had a full set of steel horse armor...... Is Datang so entrenched?

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