The Guide to the End of the World: Four Sentinels Compete for Favor

"Boom-"

"咚咚-"

A dull and rhythmic knocking sound was heard from the heavily guarded left corridor of the Institute of Biology's underground laboratory.

Half a day ago, when Ai Wanxin followed Yi Shenshou to the animal and plant room, she saw a fire rabbit madly hitting the glass curtain wall. However, this time the noise was obviously much louder than the sound a small rabbit could make.

"Sister." Jing's curious voice came from the empty corridor, "What is this?"

Ai Wanxin stopped at the door of the plant room where the vines were cultivated. With the weak light of the emergency exit indicator, she looked behind the glass curtain wall and saw the thick vines that almost filled the entire room. She was surprised and said, "How can it grow so fast?"

You know, when I saw this vine in the afternoon, it had just grown from the thickness of an arm to the thickness of a calf, and it was arching on the ground, which was a bit cute. Now, the diameter of the vine has exceeded the bucket, and its thick body is rubbing against each other slowly, and it is entrenched in the room in a disorderly manner.

It was like a vine with serrated fangs, continuously hitting the same point of the glass curtain wall like a pendulum. Circular cracks had already appeared on the three-layer special tempered glass. If it continued like this, it was only a matter of time before this thing broke through the wall.

"That's weird. In the afternoon, Yi Shenshou said that when the experimental subject evolves to the point of being out of control, the defense system will automatically inject liquid nitrogen into the room. Why does the defense system look like it's not working at all?" Ai Wan was puzzled. "Could it be that after he turned off the security system of the vault, this defense system was also turned off?"

"It's very likely." Jing said faintly, "Sister, that Yi Shenshou doesn't seem very reliable~"

Ai Wanxin shook her head, not quite agreeing with this point of view: "You can't say that. I think it's mainly because the system is a little stupid."

【system:? 】

Jing looked at the vines that were still growing at a speed visible to the naked eye, and said with a smile: "Sister, it may not wait for us to reopen the defense system and it will run out. What should we do? I'm so worried~"

Ai Wanxin looked at him with amusement. You don’t look like you’re worried at all, okay?

However, this vine grows really fast, and it is unsafe to leave it here.

"Snap—" Ai Wanxin snapped her fingers with her left hand, and the vines that were tangled together in the room suddenly disappeared from their sight.

In the space, little leopard cats, little lizards and other mutant animals were sitting around the system, listening to it vividly and passionately describing how it had taken on the task of writing a paper assigned by its master without fear, and had completed it perfectly at the fastest speed a service robot could.

It was just getting to the thrilling part when there was a sudden "click" sound behind it, as if something heavy had fallen to the ground.

The system turned its round body, and all the mutant animals stretched their necks and looked at the huge lump of vines as thick as a python that suddenly appeared on the ground.

The vine seemed to be stunned by the fall. It was stunned for several seconds before it stretched its body and excitedly waved its fang-covered tips to explore the surroundings.

The confused systems and animals looked down at the vines and reached out for the thermobaric bomb lying quietly on the ground.

"Beep——!"

"Chirp—!"

"Meow meow meow--!"

All the creatures with mouths let out sharp explosions at the same time. Those with wings immediately took off into the air, and those that could not fly jumped off the crystal core floating island with a few leaps, pouncing on the vines like a tiger pouncing on its prey.

Sharp claws, pointed teeth, long beak and milk teeth greeted it without mercy, and bright green slurry burst all over the ground.

The vine that was just showing its claws and fangs quickly shrank into a ball, crying and begging them to let it go.

For the second time today, the system's optical brain was almost smoking with anxiety. Fortunately, after being nourished by the Crown of the Starry Sky, the mutant animals can leave the floating island and move freely in space. Otherwise, I really don't know what to do with the owner who likes to pick up things at random and put them anywhere.

Ai Wanxin, who was unaware of the small commotion in the space, continued to move forward with Jing with great satisfaction.

"Sister." Jing sniffed, "Do you smell the barbecue?"

Ai Wanxin naturally smelled it as well: "...but it seems to be burnt."

The two passed through the next gate and entered the animal house area. The aroma of burnt barbecue wafted into their noses. It must be said that although Ai Wanxin had made up her mind not to eat barbecue for a long time when she was in the underground fortifications of the 9th Mountain Division, the burnt smell made her feel a little hungry.

After walking for a while, the floor of the corridor in front of me was covered with fragments of exploded glass curtain wall. In the room where the fire rabbit was originally locked up, a black mountain of charred meat was piled in the middle of the house.

Several white mice the size of wheels were busy moving in and out of the meat mountain that had been almost hollowed out.

Jing tilted his head and asked, "Sister, do you want the mouse?"

Ai Wanxin was very moved and rejected him: "No, I don't want the Four Evils."

"Puchi, Puchi--" Just as she finished speaking, the sharp shadow blade shot out from the air and nailed all the huge rats to the ground. For a moment, the room was filled with squeaking sounds.

After solving the problem of the jailbroken lab rat, the two men looked at each other. No matter how they looked at it, this didn't seem like a mess that would be caused by the defense system stopping working.

Ai Wanxin and Jing didn't delay any longer. They stepped over the crackling glass fragments and walked towards the safe at the end of the corridor.

After getting away from the animal house, Ai Wanxin's footsteps paused slightly. Without the smell of burnt grease to cover it, a smell of blood slowly wafted in from the half-open metal door at the end of the corridor. She frowned and ran quickly.

Jing caught up with Ai Wanxin in two steps, held her hand, and in a blink of an eye, he brought her to the safe where the meteorite was stored.

The moment they landed, a strong wind with a strong smell of blood came from behind the two of them. Jing turned sideways and used his shoulder to block the opponent's heavy punch. At the same time, he punched hard at the attacker's face and forced him back into the darkness.

After being hit by Jing's thundering attack like a cannonball, the man seemed to feel no pain at all and pounced on them again with extremely fast movements.

Ai Wanxin raised the index finger of her left hand, and a faint blue rune halo flashed under the man's feet. The brief light illuminated the man's bloody face.

Even though half of his face was sunken, one of his eye sockets was empty without an eyeball, and his white shirt was stained with blood, Ai Wanxin still recognized him at a glance.

"Senior Brother Yi!" Ai Wanxin cried out.

How could it be him?