The tentacles on the black group slapped the defensive alchemy array like a tide, causing the energy in the alchemy stones that maintained the alchemy array to pass away like flowing water, and the color kept changing. After only 17 minutes of the defensive array that was originally expected to be able to support half an hour, cracks appeared.

Fortunately, the soldiers who came down were well-trained. Under the leadership of commands at all levels, the entire team retreated to the second defense line, and there was almost no chaos. They retreated in a short time and completed the deployment on the second defense line, which gave Li Xiang a clear understanding of the quality of the city defense force in the Corento City. When everyone entered the second defense line, the defensive alchemy array was opened according to the plan.

The defense array of the first defense line finally couldn't support it and completely collapsed. Most of the alchemy stones in the power hub exploded. Without the blockade of the defensive alchemy array, the black group rolled forward again.

Kosmi watched the black group approaching patiently, and did not order an attack as before. As soon as the black group entered the range, he arranged a big gift for the black group. In his opinion, although the black group was an ancient national-level weapon and was powerful, its wisdom was similar to that of ordinary beasts and would not have discovered his arrangements at all.

The facts seem to prove that Kosmi's judgment is correct. The black group just moved forward all the way and didn't care about the surroundings at all.

"Activate the annihilation alchemy array."

Seeing the black group crawling into the predetermined position, Kosmi issued a new order

The alchemists who were already ready to fight were launched together. The array patterns on the ground and ceiling were engraved more than 100 meters in front of the second defense line glowed together, and two super-large alchemy arrays with diameters of more than 200 meters appeared one after another. When the formation began to rotate, violent currents began to appear, and all the tentacles that touched the alchemy array were electric to coke.

The black ball seemed to sense danger, and its body contracted very quickly, retreating rapidly. Unfortunately, it retreated too late and did not retreat much farther. The two alchemy arrays were fully activated, and the lightning arc kept slashing towards the opposite array like raindrops, becoming more and more dense, and finally, it completely turned into an electric column. The air heated up quickly, and the body of the alchemy cannon placed on the first position and the electric isolation treatment began to turn red. After a while, it turned completely red, as if it was ignited. The black ball in the middle of the alchemy array was emitting black smoke. As soon as many pieces of meat fell off, they were completely transformed by the high temperature, and countless tentacles were

It was burned by electric current and even decomposed. As the black smoke became stronger and stronger, the body of the black ball seemed to be thrown into the water, constantly shrinking. When the black ball rushed out of the alchemy array, its body was only more than 20 meters high, with a cross-section of more than 50 meters, shrinking by twenty or thirty times. It was no longer the huge and huge ones that had just climbed to the ceiling, and almost extended to both sides of the underground space left and right. The black ball did not retreat immediately after being severely injured like ordinary beasts. Under the influence of the instinct of extreme desire for food, it stopped not far from the alchemy array and retracted all the tentacles that extended out.

All the alchemy stones in the hub were exhausted, and the two destructive alchemy arrays stopped completely for more than ten minutes. Kosmi ordered the defensive alchemy array to open. The rolling heat waves suddenly came to his face, making Li Xiang almost breathless.

"The 1st Battalion of the Art Guide will cool down, and the 2nd Regiment will cover the attack. Each team should pay attention to coordinate and advance, and should not leave the brigade."

Kosmi was not confused by the success of his trap. He remained calm and sent only one regiment and a battalion to cool down and replace the alchemy stones of the first line of defense to clear obstacles to return to the first line of defense.

Instead of launching an attack immediately, the black group continued to shrink its tentacles, which made its body look more and more round.

The alchemy was launched to accelerate the air circulation, and the temperature around quickly returned to normal. Kosmi ordered the two battalions to be stationed as reserves, and the other troops approached the first line of defense. He knew that the main purpose of biological ancient weapons was to rely on their strong vitality, and ultimately it was to be consumed continuously. Therefore, after reaching the first line of defense, he did not order the troops to continue advancing or attack, but asked the Technique Corps to repair the alchemy cannon and the surrounding defense facilities. Using alchemy, these facilities were restored very quickly.

When the first defense line was almost repaired, the black group took back all the tentacles and finally took action. I don’t know if it had learned the lesson, but this time it rolled over quickly.

"Standard Team Attack."

Based on the appearance of the black group, Kosmi expected that it might use rolling attacks, so he reserved a mouth on the front. The black ball rolled over with a fierce attack and hit the defensive alchemy formation, without hurting a single person. The soldiers guarding the ambush rushed up with weapons.

What Kosmi did not expect was that the black ball did not launch a tentacle attack as he expected this time, but rolled back for a distance and hit violently again. Because of the shrinking of his body, the strength of these two impacts was larger than the complete tentacle group of the black ball just now, and it directly shattered two alchemy stones.

"The art guide team used decomposition techniques to dig a hole 20 meters ahead."

Kosmi quickly thought of a solution. The effect of using alchemy for thousands of people together was extraordinary. The front ground of the defensive array immediately sank. In order to prevent the black group from rolling through the pit, the guide group also made a slope.

When the black group rolled over again, it rolled directly into the pit. Taking advantage of the time it crawled out, the long-range attack troops strengthened their attacks, causing the black group's body to shrink a few more points again.

The black group went back and forth several times unyieldingly, and each time they returned without success. Instead, they were attacked violently, causing its body to gradually shrink to about 15 meters in diameter, and the core area was almost exposed.

"Shit!"

It fell into the pit again and crawled out, the black ball did not continue to roll forward, and two red balls of light suddenly appeared on its body wrapped in black tentacles.

"There is a violent high-energy reaction ahead!" The infrared detector immediately issued a high-energy reaction prompt.

Li Xiang was shocked and was about to remind Kosmi that the two red lights emitted two red lights toward this side. The two lights seemed to be the same as the light emitted by Dimos's corpse bear. The defense array did not respond to it, and the person being illuminated immediately turned into blood.

The red light swept past, and in just two or three seconds, nearly a thousand people disappeared and turned into a sticky red liquid. Their weapons fell on the blood, proving that there was a famous living person here just now.

Many people were stunned by this scene. Li Xiang felt a chill behind him. An indescribable nausea kept churning in his stomach and almost vomited out.

Seeing that the teammates who were still by their side had melted into blood in an instant, many people showed a look of fear.

The emitting light did not seem to be without cost to the black ball. Its body shrank several points and was not used continuously. However, it took advantage of the gap on the front of the defense array and rolled over and got in.

"Kill, avenge our sacrificed comrades!"

Kosmi did not expect that the black group would have this trick. The instant death of thousands of people made him feel very heartbroken, but after experiencing various wars, he knew that this was not the time to be surprised and mourn. He shouted at the right time, bringing up the soldiers' shared hatred of the enemy.

"Avenge your comrades!"

The morale, which was frustrated by the red light, quickly rose and surpassed that of the moment. Everyone's eyes couldn't help but turn red and stared at the black ball. The soldiers of the Skills used more powerful alchemy at no cost. After activate the alchemy array on their weapons and armor, they charged against the black group.

The battle was completely in full bloom at this moment. The black group attacked violently, and the black tentacles on their bodies swept around. The last of the remaining black tentacles were far stronger than before. Under the large-scale puncture, they took away the lives of many assault soldiers. However, the living soldiers were all red from hatred and continued to attack regardless of everything. The weapons in their hands kept cutting off the tentacles on the black group and slowly approached the body of the black group.

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Chapter completed!