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

When Ai Wanxin sat down on Yi Shenshou's chair, Yuan Xiaodan followed closely.

He half-knelt beside the chair, the first knuckles of both hands firmly grasped on the desk, looking up at Ai Wanxin with admiration.

Hou Buman and Sang Mingying were still in the lounge. He didn't dare to say much, but his sparkling eyes expressed all his words.

Jing didn't know whether he followed or not, but he didn't come back. Ai Wanxin glanced at the large English books neatly placed on the table out of boredom and asked, "Does your senior brother not like others touching his things?"

Yuan Xiaodan shook her head like a rattle: "Brother said that we can read the books on the table freely, as they are all filled with annotations. Brother is very kind to us."

Ai Wanxin picked up a book and flipped through it. Genetic engineering? Do they need to learn this?

"Qi~Qi, are you guys here for dinner?" Hou's dissatisfied voice suddenly came from behind.

He just heard Yuan Xiaodan praising Yi Shenshou, and out of habit wanted to say "Tsk~", but halfway through the word he remembered the terrifying intimidation of that woman, and hurriedly changed his words, even his accent came out.

Yuan Xiaodan jumped up with a look of surprise on her face: "Can we eat so early today, Teacher Hou? I haven't cleaned the lab and the lounge yet."

Seeing Ai Wanxin turned around and her cold and scrutinizing eyes fell on him, Hou pulled the corners of his mouth stiffly and said, "No need, your Senior Sister Sang will clean up today."

Sang Mingying sat with her back to the three people, with her head lowered as if she was reading a book, but in fact the ballpoint pen in her hand was almost crushed by her.

"Oh~ Thank you, Senior Sister Mingying!" Yuan Xiaodan cheered and happily went to Hou Buman to get supplies.

Ai Wanxin looked at Sang Mingying's tense back and felt that little Yuandan was quite irritating.

After a while, Yuan Xiaodan came back with two 550ml bottles of water and two silver vacuum-packed bags. He put the things on the table. Ai Wanxin looked up and asked, "What are these?"

"These are the supplies my senior brother and I distributed today, sister." Yuan Xiaodan answered obediently.

"One bottle of water per person, is it enough?" Ai Wanxin looked at the two bottles of water on the table. An adult normally needs 2-3 liters of water a day, but this is only 0.5 liters. How can it be enough?

Moreover, the outer packaging of the two bottles of water was something she had never seen before the end of the world. It was a white ice wall standing on a deep blue ocean, with the four small words "Glacier Technology" printed on it.

Yuan Xiaodan leaned close to her ear and whispered, "Teacher and senior students have said that ordinary water can be used as long as it is not too polluted and has been disinfected by physical or chemical methods. It can also be drunk after boiling. But some people just don't feel at ease and dare not take a bath or wash clothes."

Ai Wanxin knew who he was talking about and couldn't help but laugh.

She poked the vacuum-packed bag with the same logo and found that it also contained liquid.

"What is this?" she asked curiously.

"This is concentrated nutrient solution. Sister, haven't you seen it?" Yuan Xiaodan spoke faster than his brain and he regretted it as soon as he said it.

Although this nutrient solution does not taste good, it is sufficient to replenish energy and nutrition. It is said that this nutrient solution is very expensive outside and is limited in quantity. Most people cannot buy it and cannot afford it.

Because they were students of the Academy of Sciences, they were given one bag of rations every day.

I have never seen my sister before, and I don’t know where she survived the early days of the apocalypse.

My sister must have suffered a lot, she didn't even drink the nutrient solution...

The more Yuan Xiaodan thought about it, the sadder he became. He stuffed a bag of nutrient solution into Ai Wanxin's hand and said, "Sister, I'll give it to you."

Ai Wanxin looked at the nutrient solution in her hand, which was not much bigger than a bag of yogurt, and asked, "You gave it to me, what do you eat?"

Yuan Xiaodan couldn't help but swallowed dryly: "...I'm not very hungry today."

"What about tomorrow?"

Yuan Xiaodan's round face wrinkled slightly: "I won't be very hungry tomorrow..."

Ai Wanxin smiled and put the nutrient solution back into Yuan Xiaodan's hand: "Eat it. I have my own way."

Yuan Xiaodan put the nutrient solution back on the table: "Then let's wait for our senior brother to come together..."

Before he could finish his words, alarms suddenly rang throughout the building, and the sharp sirens pierced everyone's eardrums.

The door of the lounge, which was originally unlocked, was locked and closed with a click.

Hou Buman and Sang Mingying immediately pushed their chairs away and stood up, looking at each other nervously.

Yuan Xiaodan was also panicking: "This... this ringing sound is the alarm for the entire building to be closed. Someone broke into the confidential laboratory!"

Ai Wan's heart tightened. A secret laboratory? Could it be that Jing was discovered?

Her mind raced, and she was just about to find an excuse to leave when she heard Jing's aggrieved voice in the headset: "Sister, I came out first. I found the lab they went to, but there were pressure alarms under the floor of that lab. The alarm was triggered as soon as I entered. I had no choice but to come out first and didn't follow them."

Ai Wanxin breathed a sigh of relief and said, "Yeah, it's okay."

When Yuan Xiaodan heard her say this, he thought she was comforting him. He stroked his chest and said, "Yes, it's okay, sister. We are safe here."

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In the underground monitoring room, the fluorescent light from the light screen illuminated the solemn faces of Yan Shupei and Yi Shenshou.

On the screen in mid-air, two people were coming out of the elevator and walking through a long corridor. Everything on the picture was normal.

About five minutes later, the pressure curve on the right side of the screen suddenly increased, but there was no change on the screen, and the corridor seemed to be empty.

The sudden increase in pressure triggered the alarm, the screen began to flash a dangerous red light, and a sharp alarm sounded throughout the monitoring room.

But almost at the same time as the alarm sounded, the pressure curve returned to normal and the abnormal pressure source disappeared.

Yan Shupei asked Yi Shenshou to turn the time back to the moment when the abnormality in the pressure curve appeared.

"82 kilograms is the weight of an adult male." He looked at the number displayed on the screen and said in a deep voice.

But there was not even a trace of light or shadow fluctuation on the screen.

"Teacher, do you mean that someone can avoid the detection of optical and infrared cameras and appear directly in the laboratory on the tenth floor underground without taking the elevator?"

Yan Shupei was silent for a moment: "This possibility cannot be ruled out. Shen Shou, the direction and intensity of human evolution may be far beyond our imagination."

"Is this the person who stole the reagent last time?" Yi Shenshou asked with a fixed gaze.

Yan Shupei shook his head: "Last time, the pressure alarm device was not triggered, and the monitoring was turned off in advance. If it was the person from last time, he shouldn't have made this mistake."

Yi Shenshou's gaze fell on the light screen. Could it be that another group of people were targeting them?