Doomsday game, my supplies increased tenfold

There is no hierarchy like rulers or royal family here, it seems like a republic?

The main function of this castle is to provide "physical examinations" for everyone and to produce various daily necessities. For example, the clothes that were sold before, as well as everyone's food and tools, are all produced here.

Therefore, there are almost no ordinary people living here. Except for those who need to undergo physical examinations and provide security, there is no one else living here permanently.

It is worth mentioning that the mermaids here are almost all of good-looking type. Those with ugly faces and human faces do not seem to be qualified to appear here. At this time, many mermaids are working and chatting. Xiao Qi found a more secluded place and went over to listen to what they were talking about.

The two mermaids straightened and cut the seaweed in their hands to make clothes while discussing what happened today.

"It seems that the law enforcement team went to catch those defective products for physical inspection today. It is said that the number this time has been greatly reduced, and there are more than ten fewer than last time."

"What kind of physical examination? You actually call it a physical examination. It's just to collect data and prepare for future evolution. A few people will die every time. It won't take long before the defective products will disappear."

"Are you saying this to sympathize with those guys? Since they have chosen to continue to develop underwater, they must accept the new rules. Otherwise, we will have to give them potions every few days, which will not only waste resources but also be very troublesome. I think it would be better for these defectives to either evolve or die."

As evolution is mentioned again and again, Xiao Qi has more and more doubts in his mind. Not only do these mermaids use human language to communicate, they also just talked about continuing to develop underwater. Could it be that they were all humans on land at the beginning?

Xiao Qi wanted to hear what they had to say, but unfortunately their conversation ended there.

Afterwards, Xiao Qi found a few people sitting together and chatting. The topic of their conversation was also today's physical examination, but these people seemed to be doctors doing the physical examination. Their clothes and appearance were no different from the physical examination personnel they had seen before.

Xiao Qi's intuition told her that the conversation between the two people could give her the information she really wanted to know.

"Recently, the physical examinations have become more frequent. I just took two days off and it's my turn again. In addition to the physical examinations I usually do, I also have to research and develop medicines and take care of mermaids who get injured when they go out. I wish my life could get back on track. I hope we can train more medical talents so that we can have some free time."

"To get back on track, we still have to rely on you, Dr. Liu. Once the evolutionary medicine you developed is successfully launched, we can almost go social."

"Let's not talk about this anymore. It's almost time and my experiment is about to be completed. Let's go check out the situation now."

After they finished talking, the other doctors tactfully left, leaving only the so-called Doctor Liu, who found a raised wall in the room and pressed the mechanism on it.

Soon, a passage emerged and Dr. Li walked in, but he didn't notice that a cloud of black fog had also quietly entered it.

With Xiao Qi's entry, half of the task given previously was completed. Sure enough, this was the secret laboratory!

The laboratory covers a large area and is filled with various sophisticated instruments. There is even a place next to the air room. Xiao Qi took a look and found that there was actually no seawater in it. It seemed that this was to prevent certain instruments that did not touch water from operating normally.

Doctor Liu fiddled with an operating table for a while, apparently restocking drugs for his experiment, and then left.

Xiao Qi was the only one left in the lab. She lifted the magic and began to look around the lab.

Although it is called a laboratory, it is more like an underground experimental base. The intricate roads connect countless experimental rooms and there are innumerable pharmaceutical reagents. Xiao Qi has guessed that they placed the huge experimental system underground probably because they were afraid of being discovered.

With so many experimental potions, how can I find the so-called evolutionary potion?

I am not like Bo Mu, who can see the specific information of the items. It would be great if she were here. It would be easy for her to do such a small thing as finding items. Unfortunately, she is still doing her task.

Xiao Qi walked through one corridor after another. The surroundings changed from brightly lit to dark and gloomy, accompanied by the freezing cold sea water, it was really scary.

At this moment, a series of slight moans suddenly appeared in Xiao Qi's ears. She was stunned for a moment and hurriedly looked for the source of the sound.

Fortunately, my senses were sharp and I quickly located a room. The door was locked and there was no glass. Continuous moans could be heard from inside. Were they doing human experiments?

Xiao Qi used the Key of God to open the door of the room and slowly pushed it open a crack.

All I saw in the room were iron cages filled with hideous monsters. These guys were actually the second type of mermaids in the legend. Their upper bodies had more fish features, while their lower bodies still retained human legs. They looked extremely terrifying, and even the knowledgeable Xiao Qi couldn't help but shudder.

Their necks were chained to the wall of the room. Despite their horrific appearances, it was obvious that they were very weak and had given up struggling. Almost all of them lay on the ground groaning.

Xiao Qi carefully shuttled between them. They seemed to be unable to see him. They were numb and only cared about making meaningless gasps.

"Help, help...uh uh—"

A tiny voice was heard, and Xiao Qi turned around suddenly to see a little boy who looked no more than a teenager. He was covering his mouth and nose in pain, unable to utter a new cry for help. His eyes were closed, as if he was holding his breath.

Can't he breathe here!?

Xiao Qi didn't know what to do for a moment. He could only try his luck and took out the oxygen cylinder he had made earlier and gave it to the little boy. The little boy, who got oxygen again, took a deep breath and took a long time before he opened his eyes with difficulty.

He had no way of communicating with Xiao Qi, so he simply tried to express his gratitude using sign language, but Xiao Qi could only understand three-quarters of it.

"Calm down first. I'll ask you a question and you just need to nod or shake your head, okay?"

The little boy nodded.

"You don't want to be here, you are forced to be trapped here, right?"

The little boy nodded again.

"Do you know how to open the chain around your neck? I'll take you out, but you have to tell me everything you know, okay?"

This time the little boy nodded extra hard, and kept his eyes fixed on a door at the other end.

"In which room is the key?"

The little boy agreed.