Negative energy, explained in physics, refers to energy below the zero energy of a vacuum.

In the occult, it is believed that substances with negative energy have side effects on life and health.

However, in the knowledge system of the Arcane civilization, the description of negative energy is more specific and the understanding of it is more in-depth.

After all, for the arcane civilization, whether it is negative energy or positive energy, it is just a kind of energy that can be used, just like the arcane energy.

It has to be said that in the use of various energies, the mysterious side system of the arcane civilization is not weaker than the scientific system of scientific and technological civilization.

Just as spellcasters can use positive energy to heal injuries, increase strength, and strengthen matter, they can also use negative energy to corrupt and weaken enemies.

This needs to be studied in depth, and the amount of ink that needs to be written is too large, so I will skip it.

The most amazing thing about the knowledge of the arcane civilization is that even low-level spellcasters who do not understand the existence of positive or negative energy have not been able to use positive and negative energy, that is, spells and runes.

As long as they know that they can communicate positive and negative energy through those spells and runes, they can easily drive the various energies that exist in nature to serve themselves, just like using a remote control to switch TV channels.

Positive and negative energy, like light and darkness in nature, is a substance that coexists on both sides.

The difference is only that in the main material plane space, what life can come into contact with is more positive energy.

It's the same thing that fish can only live in water, and birds can only fly in the atmosphere.

But is there no air in the water, is there no liquid in the atmosphere? Obviously, it's not absolute.

In the Datang space-time, which is full of positive energy, such a large fog of negative energy suddenly appeared.

It's like a huge bubble suddenly popping up in the ocean, or a large cloud of liquid suddenly condensed in the sky, which is obviously not normal.

Since Bai Yuqi did not sense the fluctuations of the crack in the bit.

Then it shows that this fog of negative energy is not leaking from the cracks in the crystal wall of the plane, but that there is a problem with the native plane system of Datang space-time.

These negative energies are obviously leaked from the negative energy semi-plane and sub-plane that are attached to the main material plane of Datang space-time.

Speaking of which, we have to explain what a plane system is.

Planes never exist alone, they are clustered together like a ball of soap bubbles.

One of the most perfect laws becomes the main plane in this soap bubble, and the other incomplete rules are attached to this main plane.

As for what are the half-planes and subplanes...... It should be said that the main material plane has not yet "grown", or can it be called dimensional space or subspace? In short, it is a similar existence.

The current situation should be that a certain negative energy attribute half-plane or sub-plane attached to Datang space-time is due to the increase in the energy level of the main plane.

Through the unknown connection of the plane system, like a blood-sucking leech, he absorbed a certain amount of arcane energy from the time and space of the Tang Dynasty, and accidentally opened up a plane passage connecting the two worlds.

It is the same as the entire Datang time and space, where spider webs are generally all over the space tunnel.

The existence of the half-plane and the sub-plane is originally a part of the main material plane, or a derivative of the main material plane.

It's just that before the energy level of Datang space-time rose, they were not so closely connected with the main plane, and most of the time they were only in a hidden state, hidden behind the plane crystal wall of the main material plane.

However, as the energy level of the main plane increases, it is like filling a leaky swimming pool with water, and it will naturally fill these ant nests hidden under the swimming pool.

If it is a half-plane with other attributes, the leakage of special elemental energy will at most cause changes in the environment near the plane channel.

But the half-plane that opened on the Goguryeo Peninsula is a negative energy half-plane.

Almost all living beings belong to positive energy life, and exposure to negative energy will not only cause debilitating symptoms.

It is even possible that due to the infection of negative energy, it will lead to malignant deformities and mutations, thus breeding so-called "monsters".

This is much more dangerous than a creature being strengthened by [Arcane Particles], resulting in a ferocious mutation!

After all, even violent creatures have a certain amount of sanity, just because the pain of mutation will cause them to be irritable and aggressive.

Creatures that can be infected by negative energy will completely lose their reason and self, and become extremely crazy and dangerous.

Even because of the energy flow caused by negative energy infection, it will become extremely thirsty for the positive energy contained in the body.

The so-called lack of what is hungry, what to eat to make up, the threat of negative energy life forms to positive energy life forms is naturally self-evident...... So this is a Datang version of "Resident Evil"?

As soon as he thought that the Tang army that had strayed into the fog of negative energy might turn into a group of blackened "zombies" and pounce out, Bai Yuqi shuddered and immediately issued an emergency mobilization order to the rear.

On the one hand, the Tang Dynasty troops stationed on the border were transferred to encircle and blockade the Goguryeo Peninsula.

On the other hand, the nearby [Tiangongmen] infrastructure army was dispatched to build a great wall on the outskirts of the peninsula that was strong enough to block the spread of organisms infected by negative energy.

A large number of Tiangongmen disciples who were originally building roads in the northern Xinjiang region have all interrupted the projects in their hands.

In the shortest possible time, he was pulled over by various means of transportation, and began to build the city wall from a hundred miles away from the fog of negative energy.

At the same time, a large number of cement and other materials have also been allocated to the construction of the Great Wall to contain negative energy creatures.

In addition, because of the loss of three armies in succession, although the Tang Dynasty did not dare to send troops to death, it also dispatched a large number of troops to be stationed in Liaodong in case of accidents, but saved Bai Yuqi a lot of things out of thin air.

This war-level mobilization truly reflects Datang's current national strength and execution ability.

With Bai Yuqi's order, the entire Datang was running like a huge machine, and a large number of manpower and material resources rushed to Liaodong in the shortest possible time.

And after ordering the arrangement, Bai Yuqi did not stop at the border and wait, but arranged a [Sanctuary Enchantment] along the edge of the fog area.

Because of the large range, this positive energy curtain wall itself has no protective ability, and it can't even prevent negative energy life from breaking out of the fog area, but relying on the offset of positive energy, it can inhibit the continued spread of negative energy fog.