At the beginning, I traveled through the wilderness, and I controlled the beasts to survive.

This fragment of body is probably the location of the rat's abdomen.

Han Ning put his hand into the flesh of the white rat and dug it out gently. A frost-white crystal smaller than a soybean appeared on the tip of his finger.

A wisp of cold air lingered around his fingertips and slowly rotated.

"Could it be that this is something similar to the legendary golden elixir and demon elixir?" Han Ning speculated uncertainly, thinking of the fantasy novels about immortality he had read before.

Anyway, let’s absorb the energy first.

He squeezed the crystal, and a faint cold light precipitated from the surface of the crystal and flowed into his body.

[Energy +0.5]

Such a large crystal can actually add 0.5 energy... not bad.

As the energy in the crystal passed away, the round surface cracked inch by inch, became dull, and turned into several pieces.

Then, Han Ning picked up the head of the white rat and absorbed the energy inside, obtaining another 0.1 amount.

0.2+0.5+0.1. Just killing 1 white rat will earn a total of 0.8 energy points.

In fact, compared to the average strength of the white rat, it only has an additional means of long-range attack. The movement speed and strength have been improved a bit, but there is no significant improvement.

In front of Yinyi, it's still not enough.

However, the frost on the white mouse still had some effect on Yinyi. The branches on the right side of its body showed signs of frost, giving people a stiff feeling when moving.

"Yinyi, are you okay?" Han Ning held Yinyi's branches and used her body temperature to warm her body.

"Boobo~" Yinyi shook her body and made a gesture of "I am very strong"!

"It's okay. I'll reward you with a big meal when I go back." Han Ning touched its body and encouraged it with a smile.

"Boom!" Yinyi swayed happily when she heard that the corpse of a soul beast could be eaten again.

For Yinyi, who had never eaten much delicious food, soul beast corpses were the most delicious food.

The three people quickly cleaned up the scene. According to past practice, Han Ning took 50% of the share, and Lin Tianhe and Chen Linyu took the remaining 50%.

Another eight strange rat corpses were obtained.

They stuffed the strange rat corpse into a sack, tied it under the backpack behind them, and continued walking into the tall teaching building.

"Don't go anywhere else. Let's go directly to the experimental classroom on the third floor. Except for the experimental classroom, everything else is an ordinary ladder classroom with nothing in it." Han Ning took out the internal structure diagram of the teaching building drawn by Teacher Fang. said.

The bioengineering teaching building has a total of five floors and there is no elevator, so they can only climb up the stairs.

Compared to the outside area, the teaching building was safer. Until I reached the third floor, I didn't see a soul beast.

There were just scattered human corpses scattered on the stairs and corridors.

Due to the weathering of time and the gnawing of soul beasts, their bodies had long been beyond recognition, leaving some dry and rotten blood and skin hanging on the skeletons.

"I feel that they must have inhaled an excessive amount of white mist, which caused paralysis and suffocation." Chen Linyu squatted on a corpse with a relatively intact face, carefully studied the other person's face, and analyzed.

At the beginning of the time travel, there were two main culprits that caused a large number of casualties in the academy. One was the powerful spirit beasts with terrifying destructive power, and the other was the ubiquitous white mist.

They are so pervasive that if humans don't take special precautions, they will basically die if they inhale them.

"Classroom 302, this should be the experimental classroom."

After passing the corpses, the three of them walked to a closed green-painted door.

I pushed it, but the door didn't budge.

"The door is locked." Han Ning signaled the people around him to move away, pointed to the location of the door lock, and said to Yinyi, "Yinyi, blow this door open and hit it."

"Boobo~"

Slender spikes shot out from the surface of Yinyi's body and accurately hit the door lock.

There was a loud bang, and the stainless steel door lock was only violently deformed, not completely shattered.

"Good guy, stainless steel is hard..."

Han Ning also didn't expect that an invincible silver thorn would be deflated in front of a door lock.

But to be fair, no matter how hard the corpses of those soul beasts are, they are still not comparable to stainless steel.

"Bop!"

Seeing that his attack had no effect, Yin Yi was a little surprised and shot out three more silver thorns.

Bang bang bang!

Finally, after the fourth silver thorn passed by, the door lock was completely disconnected and the door opened inwards.

Before the three of them stepped into the classroom, a strong fishy and stale smell accompanied by dust hit their faces.

In the classroom of more than 200 square meters, more than a dozen long-dead corpses were lying in random directions.

Various experimental equipment are placed on rows of operating tables.

Optical microscope, incubator, centrifuge, microbial soil...etc.

Since this is a completely sealed space, it is difficult for the smell to escape. The soul beasts outside obviously did not notice the people here, and the corpses were still in the stage of decay.

"Hey... these people must have inhaled the white mist and suffocated to death."

Han Ning looked at the corpses on the ground and shook his head sadly.

They were smart and knew how to lock the door to prevent soul beasts from entering, but they didn't expect that there would be a more dangerous white mist here.

Even with the masks on, the fishy smell continued to reach their noses. The three of them suppressed their nausea, dragged the corpses one by one to the corridor, and opened the windows for ventilation.

"Han Ning, come here quickly and see if these are wheat seeds." Chen Linyu picked up a glass bottle filled with yellow particles on the test stand and shook it.

There is a white label on the glass bottle with the words 1001 written on it in marker.

"Yes, these are genetically modified wheat seeds. Install them." Han Ning glanced at the information recorded on the map, compared it, and said.

The three people collected them separately and put the bottles and cans on the table into their backpacks.

As for the experimental equipment, some were too bulky and had to be connected to electricity, so they only used a relatively lightweight optical microscope.

There were a total of 5 laboratories of this type on the third floor. They searched one by one and finally collected most of the plant seeds in the 5 laboratories before it got dark.

In addition to various crop seeds, there are also two sets of hydroponic devices, more than ten kilograms of nutrient soil, three optical microscopes, and some basic experimental equipment... Bits and pieces, stuffed in their backpacks and A carry-on sack.

Even Yinyi and the two anemone trees had bags of all sizes hanging on them.

It is worth mentioning that they also found two barrels of clean pure water weighing at least 50 kilograms in two laboratories, which was an unexpected surprise.

The total weight of 100 kilograms of water was tied up with rope by Han Ning and fixed above the backpack.

"Enough is enough, we can't carry any more, and we have to go back. If we encounter a powerful soul beast along the way, we won't be able to escape by then."

Han Ning saw that Lin Tianhe was still pretending, so he quickly stepped forward to stop him.

He roughly calculated that the two roommates were carrying about 80 kilograms of stuff, and he and Yinyi were carrying more, about 100 kilograms or more.

But now, the three of them are no longer the weak otakus they were a dozen days ago. Their physical fitness has been greatly improved. Not to mention Han Ning, just Lin Tianhe and Chen Linyu can not say that they can easily carry 80 kilograms of weight, at least. It doesn't affect walking much either.