The temperature of liquid nitrogen in the transport tank is close to minus 200 degrees. Suddenly exposed to the outside air, a large amount of white gas evaporated from the surface.

But more liquid nitrogen flowed down the crack cut by Lu Ning, pouring the mountain spirits below all over their faces.

The frozen liquid didn't look lethal, and the mountain spirit shook his head and continued to hammer the wall against the liquid that flowed down. But after only three or two blows, its fists became slower and slower, and finally its whole body froze in place.

With a crunching sound, a large number of cracks spread across the surface of its rock. The mountain spirit could not stand, and collapsed with a bang, and the body of the rock that could not be lived was torn apart like papier-mâché.

In fact, even if they spray molten steel directly on the mountain spirits, they will not suffer much damage, and at most the surface of their bodies will become red. Rocks are not afraid of heat.

But they can't admit the extreme cold.

At very low temperatures, the intermolecular stress of the substance almost disappears, so the overall strength decreases dramatically. Don't look at the fact that the body of the mountain master is made of solid granite, but after being poured with liquid nitrogen, it may not be as hard as a cucumber.

A large number of mountain spirits happened to be gathered together, and this tank of more than 20 tons of liquid nitrogen sprinkled them from top to bottom.

Although the mountain spirits above are directly frozen and cracked, the lower ones are not much better. Because of its own strength, it became fragile, and the mountain spirits in the lower layers were directly crushed by the weight above.

The crackling sound continued to sound, and the small slope they piled up by their bodies suddenly fell more than ten meters. When a tank of liquid nitrogen was finished, all that remained was a large pile of ice clumps twisted together under the city walls. A soldier threw a few hand grenades at the top, and the large ice cube exploded into rubble that lay flat on the ground.

The mountain elves' strength lies in their yellow granite bodies that are not afraid of bullets, but they lack the protection of demonic energy. Demon energy, like the true element of a cultivator, can resist a lot of damage. Until the demonic energy is exhausted, it is impossible for liquid nitrogen to damage the demon's body.

In this way, the enemy retreated, and the city walls were cheered. The soldiers wiped their noses and shouted at the instructors. The liquid nitrogen went according to the mountain spirits below, but the people at the head of the city did not feel good either. The volatilization of liquid nitrogen carried away a lot of heat, and the temperature in this area plummeted to more than minus 20 degrees. Everyone was dressed in single clothes, so they were shaking and their noses were runny.

The more than 10,000 rat demons who followed up were in a dilemma at this time. The gangplanks that rushed up the walls were gone, and they were greeted only by a dense barrage of bullets.

The soldiers couldn't fight the mountain spirit just now, and their hearts were on fire, and now they would be polite to this little crispy.

Dadada!

Heavy machine gun fire, and dense hitting points spread from near to far among the rat demon swarm. Wherever it passed, a storm of flesh and blood was raised.

Seeping screams rang out one after another from under the city walls, and some rat demons who rushed to the front bared their sharp fangs to gnaw at the surface of the city walls. These two teeth of theirs are powerful enough to divide gold and stone.

However, in front of the coastal giant wall, which is dozens of meters thick and covered with special alloys, there is not even a single mark left on the city wall except for knocking his own teeth.

The heavy machine guns above continued to strafe, happily harvesting these vicious creatures. A few slightly larger rat spirits chirped and exchanged ideas, and they stood up together, two small paws clasped to their chests. They opened their mouths, and streaks of black-green smoke poured out of the depths of their throats.

This is the plague talent of the rat demons, and the powerful individuals among them can use the demonic energy in their bodies to generate this black-green poisonous mist.

The flesh of the living is the most attractive to this plague mist. As soon as it appeared, the poisonous mist drifted towards the city where the soldiers had gathered like a living creature, and there was a hint of a fishy wind in the air.

But humans have been fighting demons for several years, and the rat demons' methods are already very clear, so they naturally have a way to deal with them. The genus of plague and anger is most afraid of flames, and the poisonous mist of the rat demon is no exception.

The spear heads of several flamethrowers stretched out, and with a few pops, more than a dozen hundred-meter-long flames were fired. The poisonous mist floating in the air was burned to a sizzling sound, and after a while, it disappeared into invisibility.

This is one of the several demon methods that humans can deal with better, and it only needs a strong flame to purify. The most worrying thing about the rat demon is that it will spew poison gas into the civilians of the city, in which case it will be very difficult to deal with if it can't be sprayed with fire and flame spray.

Eliminating the poisonous mist, a soldier who wields a jet is not enough. He roared, blasting the remaining fuel from the gas canister at the rats below.

Suddenly, there was a squeaky scream, and the special smell of burnt fur could be smelled in the entire radius for several miles, and there was an inexplicable smell of meat, which was disgusting. Everyone glared angrily at the perpetrator. The Pyro lowered his sprinkler in frustration, knowing he had screwed up.

When more than 10,000 rat demons lost less than half of them, a divine thought swept by. They stopped their futile attacks and turned to scurry. It seems that the demon general gave the order to retreat.

Lu Ning wiped the sweat from his forehead, his strength didn't use much, mainly because he was in a hurry. Yu Xiaoyue is not there, he really has no confidence in his heart, and he can defend this coastal city under the siege of four demon generals.

Lao Lu made plans more than once, packed his luggage and ran away. He is a top-level ninja, and now he has re-cultivated immortal arts, and who can stop him from running away when the world is so big.

It's just that every time he thinks of these friends and compatriots in Binhai, everyone's persistence, and the pork stewed vermicelli in the civilian street, he is determined not to leave until the last moment.

Lu Ning raised his head and looked in the direction of the main entrance. There, lightning was scorching his command deployment. Probably feeling the gaze from afar, the lightning also looked at Lao Lu, who had won the first battle here. The four eyes met in the air, and the lightning arched his hand in thanks. Between men, it is useless to talk too much, and everything is silent.

The situation over there was already critical, but Lightning didn't bother with it, because he was organizing more important repairs.

The central reactor in the Primorsky was offline, and the power supply was completely interrupted. The consequences are not just the unusability of defensive weapons.

There was also a complete interruption of communications.

Now in the last days, all the satellites in the sky have exploded, and the underground optical cables are almost broken. But base stations within the city can also be used.

In a huge city, command and communication can't rely on roaring, so in fact, mobile phones and walkie-talkies can still be used - only in the city.

After the power outage, the base station in the city was shut down, and the cultivators could not make unified deployment. For example, the few soldiers who drove the liquid nitrogen truck just now, if communication is available, they don't have to wait for Lao Lu to help in person.

So communication is important, and lightning is restoring the communication of the coastal command system.