Xu Xin also wanted to contract some wild animals to use for exploring the road, but Chang Yin stopped him.

Changyin said that if he was just exploring the path, he could directly order the beast to move forward, and there was no need to waste the contract.

The ring must actually touch the mutated beast's body before it can be stored. Xu Xin used various methods to coerce and lure him, but he still couldn't touch the extremely fast mutated cheetah. Although the cheetah had already interacted with him

The contract was signed, but Xu Xin was still not allowed to touch it.

He had no choice but to give up the idea of ​​putting the cheetah in the ring and let it follow him all the time.

When Xu Xin and Chang Yin came out of the room, Xue Lan, the little boy and the maid were still waiting outside. Seeing Xu Xin followed by the cheetah, Xue Lan was a little surprised: "You actually subdued this cheetah. In order to catch it,

It cost us a lot of effort."

Xu Xin's heart moved: "You caught them? Aren't you always underground? Where did you catch them?"

"Some of these beasts were brought down from the ground, and some were bred later. This cheetah was one of the first beasts brought down."

So that’s it…wait!

Xu Xin's eyes widened: "Didn't you... come down forty-nine years ago and never go out again?"

"That's right." Changyin was followed by several stronger-looking mutated beasts, and he wanted to use them to explore the way. "Maybe the mutated beasts have a longer lifespan. We don't know much about the mutated beasts outside, but these man-made

The mutated beast shows no signs of aging for such a long time, and will become stronger and stronger as time goes by."

Damn it! Real or fake!

Xu Xin was shocked, isn't this immortality?

He said that he wanted to try a bottle of [Mutated Beast Potion]. Humans can also mutate, as the furry people in the other room have confirmed.

Chang Yin seemed to have seen Xu Xin's thoughts, and said angrily: "Stop having such wishful thinking. Most of the beasts who drank this potion lost their will, leaving only their instincts. Only a few, including this cheetah,

There are only some memories before the mutation, and those humans, without even one exception, have all turned into madmen. Do you want to become a madman and live forever?"

That's it... then forget it.

It's a pity. If he could live forever just by growing hair, he would still be able to accept it.

Isn't there some kind of hair removal cream or something like that? It doesn't matter if you have a lot of hair, but it's the most uncomfortable thing if you have less hair.

Xu Xin pointed to the room full of mutant humans: "What are you going to do with them?"

"They..." Changyin looked at the covered wooden door, his tone was very complex, with hatred and sadness, and a feeling of gritting his teeth, "They will stay in this dark underground forever!"

As he spoke, he stamped his foot hard, and a thick stone wall pushed out from under the door, cracking the door panel. With a "bang" sound, the stone wall completely sealed the room.

Chang Yin's mood was a little unstable. Xue Lan stepped forward and held his arm. The little boy also stood beside him and looked at Chang Yin worriedly: "Dad..."

The middle-aged maid stone statue stood behind them without speaking.

Xu Xin just felt a little pity. He also thought about whether he could contract a mutant. After all, work such as planting and mining can only be done by humans, but looking at Chang Yin's appearance, he wisely did not mention it.

When Changyin's mood returned to normal, Xu Xin made a gesture of invitation to them: "Please, didn't you say that you already have experience with the first two doors and it's up to you to solve them? Lead the way."

Although Changyin's stone eyes couldn't blink, he seemed to be rolling his eyes at Xu Xin: "You have no empathy at all, let's go." With that, he walked deeper into the corridor.

After passing the last metal door, there were no doors on both sides of the corridor ahead, leaving only a deep, dark stone corridor without lights.

Because they knew the first few mechanisms, there was no need for mutated beasts to explore the path for the time being. Chang Yin didn't know what props to use to contain the mutated beasts, and the few people walked towards the depths of the corridor.

The road was very long, and there was only the sound of a few stone statues stepping on the ground in the corridor.

Coco helped Xu Xin for a day and fell asleep on Xu Xin's shoulder, snoring weakly. The mutated cheetah followed Xu Xin two meters behind. It walked silently. If

Looking back from time to time, Xu Xin thought it hadn't followed.

Gradually, Xu Xin found that the corridor around her seemed to be wider and taller.

"Is this corridor getting wider?" Xu Xin asked her doubts.

"It's wider at the back, and there's still a long way to go from the first door." Chang Yin Tou said without looking back.

Xu Xin felt something was wrong, but he felt that he had not walked a close distance. Thinking of the map that he had never used, Xu Xin thought about it, and the long-lost map appeared in his mind.

The map still only shows the terrain area on the ground. His current location on the map is getting further and further away from the black bear cave at the entrance, and also further and further away from his tree house, even outside the normal three-kilometer protection range.

The line is very close.

Fortunately, the protection range of his tree house is not as small as that of ordinary people, it is six kilometers in radius, so there is no problem of going out of the protection range and encountering attacks from underground creatures for the time being.

Continuing to move forward, the width and height of the corridor are getting larger and larger, gradually becoming as wide as a tunnel. The ground has also changed from a flat road to a slight uphill slope. Although the slope is not large, it gives people a sense of

It feels like it's really moving towards the ground.

Although the corridor turned into an upward tunnel, there was still nothing in the tunnel, making it appear very empty and deep.

After walking forward for a few minutes, Xu Xin suddenly felt the ground vibrating slightly, and the amplitude of the vibrations became larger and larger. There was also the sound of something hitting the wall deep in the tunnel.

"What's going on?" He became alert.

The four stone statues were very calm, and Chang Yin said easily: "Don't worry, the first trap is here."

Xu Xin frowned and looked forward with squinted eyes. When he saw what was approaching, his eyes widened.

Rolling Stone!

It was a huge rolling stone, with a diameter slightly smaller than the width of the tunnel. While rolling downward, it kept hitting the stone walls on both sides. Because of the slope, the speed of the rolling stone was getting faster and faster.

It will take a few seconds to hit them.

You must find the rhythm of the rolling stone hitting the wall, and while it hits one wall, avoid it from the other side!

Xu Xin was concentrating on avoiding the rolling stones when Changyin in front of him suddenly slapped the wall. Part of the stone wall immediately sunk inward, opening a small hole that was two meters high and less than one meter wide. The hole was several meters deep.

.

"Go in and hide." Changyin directly dragged Xu Xin in, and then the four stone statues also hid in.

...Isn't this a bit rogue, just opening a hole in the wall to hide from the mechanism?

A few seconds later, a rolling stone rolled past the entrance of the cave with a loud noise, hit the entrance of the cave, and continued to roll down.

Stone chips flew and hit Chang Yin who was standing at the door, but he didn't seem to feel any pain and just slapped the gravel on his body.

"……it's over?"

"It's still early, just wait."

At this time, the little boy next to Xu Xin tugged on Xu Xin's clothes and said: "Uncle, we have played this game before. After a while, several rolling stones came down in succession. It is very difficult to just hide. It is difficult to open a hole on the wall like this."

Just wait until these rocks are gone."

Are there several rolling stones in a row? Xu Xin's mouth twitched. If he had to do it by himself, it would be easy to dodge one, but it would be too difficult to dodge several in a row.

But... uncle? Who is your uncle? If you really count the age, this little boy's stone statue must be at least over fifty years old. You are my uncle, so it's more like it. Xu Xin complained in his heart.

Xu Xin suddenly felt as if something was missing around her.

"Wait, where is the cheetah? The cheetah is still outside!" Xu Xin became a little anxious when he found that the cheetah that had been following him had not entered the cave. He admired this cheetah very much.

"Don't worry, it's fine. If you can't dodge it with its speed, then this mechanism doesn't want others to survive. This is the first mechanism, and it's not that strong." Changyin said calmly.

Xu Xin looked out from the gaps between several stone statues. The mutated cheetah was unharmed at this time. It even lay down and combed its fur with its tongue.

It looked at the small hole crowded with several people with some disgust, but had no intention of entering.

Seeing its relaxed look, Xu Xin felt relieved and leaned against the innermost part of the cave with peace of mind. She even took out an ordinary apple and started chewing it.

While eating, he felt a little regretful. If he had known he had been out for so long, he would have grilled some meat and brought it out. He really wanted to eat meat.

The loud noise coming from the back of the tunnel must be that the rolling stone got stuck. After all, the bottom is getting narrower and the rolling stone will always get stuck in one place.

Not long after, the ground began to tremble again, and rolling and crashing sounds came from above again. This time the sound was denser, and it sounded like three rolling stones.

Although Xu Xin used cheating to avoid this trap, he already had the best method in mind. After dodging the first rolling stone, he should continue to move forward as much as possible, because the further forward, the tunnel will get deeper and deeper.

The wider, the wider the range that can be avoided, and the easier it is to avoid these rolling stones.

"Run forward, there is a large area of ​​​​dodge in front of you!" Xu Xin shouted to the cheetah outside. The cheetah seemed to understand what Xu Xin meant, and disappeared with a kick.

This speed is really fast.

Soon, three rolling stones rolled past the entrance of the cave, and three loud noises were heard from behind.

"Don't worry, there is more."

Also...this mechanism is really life-threatening.

"Ugh..." Coco on the shoulder was also awakened by these loud noises. He rubbed his eyes with his little paws, took a look at the current situation, found that there was no danger, and lay down to sleep again.

The ground began to tremble again, and this time the sound was more intensive. Not long after, five rolling stones rolled down the side of the cave entrance one after another and got stuck behind.

"It should be gone." Changyin looked deeper into the tunnel with his probe.

"Just in case, let's wait a little longer."
Chapter completed!