Cheng Hao's face showed a hint of horror, in this underground research institute, it really opened his eyes.

Cheng Hao lowered his eyes, no longer distracted, but focused on the escape in front of him.

Cheng Hao quickly discovered the elevator of the underground base, but at the moment when he was about to reach the elevator. Cheng Hao only felt a violent vibration under his feet.

The expression on Cheng Hao's face suddenly froze, he stopped in an instant, and then quickly took a few steps back, away from the elevator in front of him.

"Boom, boom......"

The sudden impact sound, he could naturally hear it, and the impact sound came from the elevator in front of him. Apparently, unidentified creatures are attacking the only way to the outside world.

Cheng Hao wanted to scold, but the violent impact sound didn't give him a chance, and near the elevator, a green tail suddenly appeared, directly rolling the entire elevator. Cheng Hao saw that this tail was unusually thick, and at the same time lacked a green light.

His face was not much better, looking at the creature in front of him with only a green tail, but no body.

Looking at a huge snake head that suddenly appeared in front of him, spitting scarlet letters, he silently stared at the small creature in front of him.

"Whew!"

When Cheng Hao found the body of the green tail, his face changed suddenly, he stopped, and said in a calm voice: "Over the years, the organization has not changed! ”

The mutant snake in front of him spits out scarlet letters from time to time, and its huge body is entrenched on the elevator, blocking the only way to escape.

"Hiss......"

The mutant snake's hissing sound was terrifying, and it seemed to be aware of something in Cheng Hao's hand, which could cause him great harm.

The huge head of the mutant snake immediately raised high, and the weird green tail swept directly towards Cheng Hao's body. Cheng Hao's eyes froze, and he jumped back directly. However, although Cheng Hao dodged the attack of the mutant snake, the green tail of the mutant snake swept towards Cheng Hao's direction without slowing down at all.

Cheng Hao looked at the green body that was constantly coiling, and he felt a tingling of his scalp. This mutant snake is not so much a mutated animal as it is a biological weapon. Cheng Hao noticed that its body seemed to have two tails, which made him feel a little familiar.

He vaguely remembered that it was a mutated animal of a two-tailed snake.

The body of the mutant twin-tailed snake was still coiling, and Cheng Hao took this opportunity to get farther and farther away from it.

Cheng Hao's eyes were condensed with extremely angry eyes, using a living person to develop biological weapons, this is an unforgivable mistake that must not be forgiven.

Cheng Hao wants to destroy this place, and at the same time destroy these biological weapons, he can't let them go out and harm people at one time, causing a lot of life and a large loss of population.

Bang!

The sudden sound of gunfire made Cheng Hao stop in a hurry, and the fierceness in his eyes was even better, it was the sound of a machine gun, and it was this sound that made Cheng Hao return to the elevator and encounter the mutated twin-tailed snake.

Cheng Hao also heard the screams of human beings, which made him stunned for a moment, and he was a little surprised that there were still living people here.

As soon as Cheng Hao approached the end of the corridor, he was startled by a blazing high temperature and stopped his pace.

"Let's go, get out of here, Yu, has the self-detonation system been activated?"

"Don't worry, half an hour is enough for us to escape, and then everything here will be in ruins!"

"Very good, Yu, I don't have to worry about your errands, the test subject has run out, hurry up and get out of here. ”

"I didn't expect that we would come here to spy on the enemy, and we would actually encounter predators, which is really eight lifetimes of mold. ”

Cheng Hao listened to the conversation between the two people word for word, and when he heard that the underground research room had been activated with a self-detonation system, his heart was suddenly shocked.

"Huh, there's someone near us?"

Cheng Hao's heart suddenly hung in his throat, and the whole person immediately tensed his nerves, he arched himself slightly, and made a move to prepare for a surprise attack.

Cheng Hao hid in the dark and eavesdropped on them, and naturally heard the angry howl of the predator, he narrowed his eyes and pondered for a while, but he made a decision in an instant.

He suddenly burst out and took a look at the two men. When the group of mercenaries saw a person suddenly jumping out, they were startled, and immediately pointed their guns at Cheng Hao, shouting, "Who is it?"

Cheng Hao hurriedly raised his hand and said quickly: "There is a monster behind me, run quickly......"

The moment Cheng Hao appeared in front of them, he had already swept their faces and decorations at a glance, and this group of people were indeed mercenaries wearing body armor.

Cheng Hao only looked at Yu and Yan, both of whom looked very young.

Suddenly, a beam of light appeared in the dark corridor behind him.

Cheng Hao turned around and squinted his eyes slightly, and from the open square mouth, he seemed to see several staggering figures constantly roaring, hovering on the ground.

"Oops, it looks like the Bloods have discovered us. ”

Yu saw a few zombies wandering around, and immediately took out the dagger on the side of his calf, directly dragged a female zombie across the way, and then pierced its head with the dagger.

The rest of the zombies who were hovering around heard a noise under their feet, and immediately twisted their rotting heads to look down. But they found food in an instant, and immediately, they gathered towards Cheng Hao and them.

When these zombies stepped forward one after another, two young mercenaries directly pierced their heads.

Cheng Hao saw that their movements were so skillful and their coordination was even more subtle, and he couldn't help but sigh at their abilities.

Seeing this, a smug smile appeared on his face, and he said, "Do you think the people of the Blood Clan are so powerful? ”

"Run. Yu suddenly shouted, unexpectedly a giant scorpion predator smashed through the wall and directly knocked the walking corpse in front of it into the air.

Seeing this scene, Cheng Hao also panicked, in this small space, he couldn't show his skills, but this monster could crush him at any time with his huge body.

"Follow me. I saw the dead hand in a certain direction, signaling Cheng Hao and them to enter a room.

This room was a toilet, and Cheng Hao and two people jumped down the sewer.

However, Cheng Hao, who had just come out of the sewer door, found two thinly dressed girl zombies and blocked his way.

Cheng Hao's face sank, and he directly swung his fist and hit the head of one of the zombies, and in an instant, the head of that zombie was shattered by Cheng Hao's sudden huge force, and his head was deformed. And the other zombie was kicked out by Cheng Hao.

"Boom...... Boom ......"

The teaching building slowly collapsed again, dusty, broken wood scattered, countless stones fell from the sky, Cheng Hao had already walked into the range of these flying dangers at this moment, as long as one was not careful, he might be hit by those gravels.

However, he did not stop and continued to move forward without fear.