"Smack!"

With the dull sound of a heavy object falling to the ground, he looked ahead and saw a black shadow more than a meter long lying in front of him, and took a closer look: it was a huge mouse with long fangs, gray hair standing up, and black scales on its head!

"Squeak ......"

The mouse's sharp claws were stained with Yiyun's blood, and it licked greedily, staring at Yiyun with a pair of red eyes.

The Cretaceous genes are unlocked in the organism, and the changes brought to the organism are great, and the internal reason is mainly the rapid increase of the biological energy of the organism itself, and the change in appearance of human beings due to their relatively high intelligence is not very large. Apocalyptic scientists have analyzed this: the more intelligent the creature, the greater the change in appearance.

The gray squirrel in front of him, with a biological energy of 98 joulka, is dozens of times larger than an ordinary gray squirrel, his eyes are red, and he has lost his usual fear of humans, and he is a lowest-level mutant beast.

Yiyun's biological body energy is 100 joules, but he was seriously injured, and his strength was greatly reduced.

"Squeak!"

The giant mutant rat pounced with its teeth bared and swooped in, a pair of sharp claws waving. Yiyun clenched the manganese steel serrated knife in his hand, concentrated his eyes, and when the gray squirrel pounced in front of him, the sharp knife in his hand slashed down, and a puff of fishy dirty blood splattered out, Yiyun tilted his head to avoid it, and the gray squirrel's head was chopped off by Yiyun, and the headless gray squirrel's body that rose in the air fell to the ground, and the four sharp claws still scratched themselves.

A lot of physical exertion, Yiyun urgently needed energy replenishment, looking at the rat corpse on the ground, he was about to lean down.

"Squeak...... Squeaky ......"

At this time, there was a numbing sound on the scalp, and a red dot flickered from the dim corner, and hundreds of black shadows rushed out, Yiyun frowned, and rushed into the drainage channel without hesitation, and rushed directly into the sewer of the main body of Xijing City according to the instructions of the underground pipe network diagram.

A ten-meter-wide sewage channel, with a height of about a meter above the ground on both sides, was a dense row of sewage outlets, and Yiyun jumped down from one of the outlets, and the mutant rats who were chasing after him. The crowd was like a stream of black water rushing towards him. He continued to run forward.

The speed of the mutant rat was very fast, and when he saw that he was about to catch up with Yiyun, he immediately turned to the side slightly and ran directly to the edge of the sewage canal. The mutant rats that followed him closely behind him were in a hurry, and they didn't have time to adjust their direction, and the one in front of them was suddenly wrapped in a huge black ball.

He continued to run forward, and the deviant rats were very afraid of water, and only chased after Yiyun about half a meter from the sewer. And soon overtook him, and it seemed that he was about to surround Yiyun in front and back.

"Kiln ......"

Several sewage outlets in front of him, a large amount of black things flowed out, Yiyun thought it was sewage containing special substances at first, and after running out for a while, he saw that all the cockroaches were flowing out, but the smallest of these cockroaches were more than ten centimeters in size, and a few were extraordinarily large, almost half a meter, the most terrifying thing was. Inside the cockroach pile, there are still several white bones, and I don't know if it is the person who has been eaten by these mutant insects, or some other animal.

The cockroach completely blocked the way ahead, and just as Yiyun was about to jump into the sewage canal, a huge black shadow staggered in front of the sewage canal, and his heart tightened: "Could it be that the water surface is some kind of mutant beast that is not afraid of water? This is terrible!"

Running up hard, and after seeing the dark shadow in the dim light, Yiyun breathed a sigh of relief: it was a tattered duck boat, the most common two-person ride in the park.

Yiyun jumped up in one step.

"Jie Ji ......"

A figure emerged from the ship. Yiyun looked over vigilantly, it was a scantily clad girl chalk corpse, she was leaning over there to eat a male corpse that was only half cut off, sensing that Yiyun jumped in, and the girl's chalk corpse pounced. Yiyun reached out to support her bulging breasts, and threw her out of the boat, and the mutant rats that followed wrapped her in one fell swoop, and the terrible "Jiji" screams resounded through the sewers.

Looking at the opposite side, there was still half of the remaining male corpse wearing a straight military uniform. With a two-bar four-star rank on his shoulders, he turned out to be a colonel officer.

The officer's eyes were full of horror, he held a Type 92 9mm pistol in his hand, Yiyun took it and released the magazine, and when he looked at it, 15 bullets were fired.

Yiyun was quite pleased, the nine-millimeter bullet, controlled within twenty meters, and the chalk corpse with a bioenergy of about 100 joules could directly shoot the head, which was a very good weapon.

He put the pistol away and looked back, where mutant rats and cockroaches were violently eating each other, and the smell of blood was strong. Yiyun knew that as the Cretaceous genes were unlocked for a longer time, the strength of the chalk corpses and various mutated creatures would become stronger and stronger, and he must improve his biological energy and strengthen his strength as soon as possible.

Yiyun took out the underground pipe network diagram and looked at it, adjusted the direction of the duck boat, stepped on the oars, and quickly headed forward, where it was pitch black.

"I'm you in 10 years!Cretaceous genes unlocked!School paleontology and fossil showroom!I'll go to you in three days!I'll cut off my head as soon as possible!I hope you're still alive!Beware of any creatures, especially people, that appear around you......"

Xue Xue had a terrible headache, and countless voices sounded in her ears one after another, and the sharp saber she was holding tightly in her hand was dripping blood.

"Woo ......"

A girl in a pink dress was crying in fear behind her, this was Xue Xue's roommate Chen Shasha, next to her, a girl was sitting on the ground, hugging a boy who was screaming, the girl was wearing a loose off-the-shoulder white tulle shirt, and the lower body was a pair of extremely short lace hot pants, this was also Xue Xue's roommate Pan Lan, and the boy lying in her arms was Pan Lan's boyfriend Lu Yu.

There is also a sturdy boy, Lu Yu's friend**, who is holding an iron rod in his hand and his face is pale.

Not far away, in a pool of blood, the corpse of a middle-aged man lay down, the school worker clothes he was wearing, several deep cuts had been cut, his head rolled to the side, his eyes were round, and his pale face was covered with some dark blue scales.

This is the paleontological fossil exhibition room of Northwest University of Geosciences.

Xue Xue stumbled out of the foreign student apartment, and before she had gone far, she vomited...... She was overwhelmed by a series of unbelievable things, and it took half an hour for her emotions to recover slightly, she tried to calm herself down, held back the fear in her heart, and roughly sorted things out in her mind.

First of all, look at the saber sandwiched in the book, and the two black students who died tragically upstairs, and make sure that what happened just now is not a hallucination. (To be continued.) )