Different from the original man-made or natural aerosols on the earth, although the concentration of spore black fog rises and falls due to climate influence, it accumulates or dissipates due to atmospheric precipitation and other reasons.

On the day of the catastrophe, the eruption of the black fog blowout caused the spore community that was originally dependent on the organism to deepen the hidden symbiosis in 10% of the human individuals and 70% of the mammals, resulting in the evolutionary group and the black beast group.

Most humans, and a few mammals, quickly lose their vital signs in the deadly toxins released in the dominant state of the spores. They then take over the organism's nervous system by the spore colony, and become a member of the dominant corpse, i.e., the black corpse and the corpse beast.

The spore community parasitizes in the pons and medulla oblongata at the back of the brain, and cooperates with the secretion of pheromones to control the whole body and stimulate further mutation and evolution of individuals.

The spores and organisms have evolved into higher energy organisms, and the accumulated free energy exists in the back of the organism's brain in the form of crystal nuclei. Similar to the T-virus zombies in the movie, if an external attack can directly destroy the brain of the organism and destroy the nervous system from the root, it will also achieve a fatal effect.

Doing so will not destroy the Crystal Nucleus loot, but the symbiotic spore community will die with it.

In the recessive symbiont, the living body is still dominant, and the spores are reduced to vassals and powerful tools on the path of evolution.

However, when the recessive symbiont is stimulated by external stimuli, such as being bitten or scratched by a corpse, the individual is severely infected with spore toxins. After that, the spore parasitism mechanism was stimulated twice, and the spore community dominated. The bitten organism changes from recessive symbiosis to dominant parasitism, and the organism dies and the corpse becomes a black corpse or corpse beast within 40 minutes.

The immunoagent is prepared from the spore homologous crystal nucleus, which can make the organism resistant to spore toxins in advance, so as to maintain a recessive symbiosis state under the invasion of black fog.

But it's not without harm. Individuals who have used an immunity agent will not benefit from the strength increase caused by the latest Black Mist eruption. Awakening Flasks also have this repulsive effect, but the evolution bonuses obtained by using Awakening Flasks are much faster and more stable than passively waiting for the Black Mist to erupt.

Whether it is an invisible parasite or a dominant necromorph, this change is irreversible.

Although they are both spore crystal nucleus energy creatures, they are mortal enemies of each other, and they have become prey and hunters due to unconscious competition for evolution.

This is probably the purpose of the Star Thieves group.

After the spore toxin poisons most of the humans, the formed groups of black corpses, corpse beasts, and black beasts will also slaughter the survivors twice. Without having to do it yourself, you can reduce the number of 7 billion ants with minds to less than 100 million grasshoppers. It's a little more powerful, but that's about it. Grasshoppers still belong to the category of "ants", and after the number has decreased sharply, it is more concentrated, and it is more convenient and faster to reach out and pinch to death.

Besides, if you can use some more means, the natives on this planet will fight and fight. Maybe they won't have to do it themselves at all to take down this planet.

After all, as an alien intelligent species, even if they want to descend on the earth's native land before the earth's atmospheric environment is transformed by the spore black fog, they will have to pay a lot of price.

It can also be seen from this that regardless of the planetary civilization to which the Star Pirate group belongs, the Star Pirate Group alone cannot directly destroy the Earth civilization.

The purpose of borrowing strength is to save effort, and it is also a helpless move.

"And that's where the hope and strength of the native race lies."

Not far from the lighthouse, Lang Hua once again killed two black corpses through a sneak attack.

The viscous black and red blood dripped down the blood groove on the dagger under his feet, and Lang Hua didn't bother to clean it up, looking ahead and squinting his eyes.

Not far away, more than twenty black corpses heard the movement, turned around one by one, opened their mouths and roared, letting out a roar of unknown meaning.

"Roar!"

More than 20 black corpses surrounded him, and Lang Hua knew that he couldn't touch it hard, so he turned around and stabbed it diagonally in the northeast direction.

Seeing that the fat in their mouths was about to slip away, the black corpses mechanically turned around and roared in the direction of Lang Hua's escape, slowly chasing after them. Several of them even stiffened and ran.

Seeing this scene, Lang Hua couldn't help but feel a pang in his heart. He immediately changed his course and circled repeatedly in front of the pile of materials, the body of the black corpse of the initial corpse was not coordinated enough, and it was painful to collide one after another in this area.

Seeing that people in the south dormitory area had already gathered towards the lighthouse, Lang Hua turned around and sped up, leading the group of black corpses behind him to the northeast.

More than a dozen workers who survived took the opportunity to climb inside the lighthouse wall and were temporarily safe.

A few minutes later, Lang Hua came back from the west in a circle. There were still seven or eight black corpses following behind his ass eating ashes.

The people at the lighthouse were waiting for dawn in fear, when they suddenly found Lang Hua not far away.

"Look, it's Xiaohua back!"

"How did he bring those monsters back? Is it trying to kill us all? ”

"Sixth, you wolf-hearted thing, can you get here alive without Xiaohua? Have you forgotten who risked luring so many monsters away? ”

"I didn't ask him to lure those monsters away. He led them all away, why did he come back...... If only he had died outside with those monsters. ”

"You! You still have no humanity! ”

"Don't fight, don't fight. He just wanted to live, and his brother was bitten to death in front of him just now. ”

"Don't make a sound! After those monsters bite Lang Hua to death, it will be dangerous if they notice here! ”

"You guys!"

There was chaos behind the wall, only Wang De muttered, as if he knew Lang Hua for the first time: "What a boy who can't be seen, what a brave and resourceful Lang Hua." I'm really out of sight......"

Xing Wutian stood beside Wang De, looking only 40 years old.

He climbed up the wall and shouted anxiously, "Xiaohua, come here!" ”

The others were taken aback.

"Xing Wutian, what are you doing?"

"Come down, the monsters will notice here!"

After Lang Hua heard it, he nodded and greeted Xing Wutian. Then he turned around and slashed at the back of a black corpse's head.

Another black corpse tried to pounce on Lang Hua in vain, but was kicked out three meters away by Lang Hua in the chest, and his body was unstable and fell to the ground.

"Thrust!" Lang Hua let out a low snort, and came to him in three steps and two steps. A knife with the sound of the wind pierced the eye socket of the black corpse, ending the deformed life of this corpse mutant.

A coherent and skillful double kill was staged in front of him, making everyone speechless.

Wang De's eyes narrowed slightly, revealing a look of great fear.

Lang Hua quickened his pace, propped up the low wall with both hands, and jumped into the wall with a swing.

"Why are there only a few? Are there no more people alive? ”

While asking, Lang Hua distributed a few military stabs and knives in his backpack to everyone.

"It's all here." The others replied with a bit of dejection.

Lang Hua immediately ordered: "The black corpse is coming!" Scaffolding on the second floor, everyone, hurry! ”