Moving slowly forward in the cave, Xu Xin began to observe his surroundings.
The walls of the cave are not made of stone, but some dry soil, which is light red in color. The entire wall of the cave is made up of this light red contaminated soil.
He touched it lightly with his hand, and a small piece of the wall broke, fell onto the slope, and rolled down a distance.
"You guys, don't touch the wall unless necessary. It's all dirt and may collapse." Xu Xin reminded the four beasts.
The underground passage inside this cave is round at the bottom and round at the top. Although the ground is inclined, it is relatively flat, and the top is curved.
The entire cave looked like it was drilled open by a giant worm, going all the way underground.
"Hmm..." Keke lay on Xu Xin's shoulder, shrinking her head in fear.
It has a very keen sense of danger, and it feels like they are approaching danger step by step.
Xu Xin knew there was danger ahead, but he still had to move forward. His treehouse was now surrounded by mutant vines, and unless he destroyed the heart, he couldn't even keep it.
Logically, this road should only be less than a kilometer long, but it felt like he had been walking for ages. The further down he went, the quieter it became, until it was pitch dark. Fortunately, Xu Xin had night vision, so it didn't affect him much.
Mimi and Silver King, as mutant beasts, could both see in complete darkness. Coco, while not a mutant, was somehow unaffected by darkness. Bats were even better, emitting ultrasonic waves that allowed them to locate themselves, completely unaffected by darkness; darkness was their natural habitat.
In the cave, only the sound of their footsteps could be heard.
Although his nose had adapted to the surrounding fragrance, Xu Xin could still feel that the fragrance was much stronger than when he entered the mouth, and was even beginning to be pungent. A faint red mist began to float around him.
Suddenly, a red light quietly lit up in front of him, causing Xu Xin's heart to skip a beat.
After a closer look, he found that the light source was Mimi who was walking in front, and he breathed a sigh of relief.
The blood-red pattern on Mimi's body lit up slightly.
Is it because of the red mist surrounding here?
The blood patterns on Ah Fu's body, who was lying on Mimi's back, did not light up. He looked back at the Silver King and found that there was also a faint red light on the Silver King's body.
It seems that intermediate mutant beasts are more sensitive to the red fog, or in other words, they can use the red fog more efficiently. Even if the red fog is very thin now, it can still be used to enhance their own strength.
However, this also sounded the alarm for him, making his spirits instantly extremely tense.
His previous experience in the hilly resource area taught him that in areas with dense red fog, the tree house's protective effect would become even weaker, and there was a high probability of the presence of mutant creatures.
In the cave, the spear was not very useful. Xu Xin touched the blue-grade iron sword on his waist, and holding a crossbow with explosive arrows loaded on it, he followed Mimi and walked forward slowly.
Mimi also doesn't dare to walk fast, as she can sense the danger ahead. She walks in a cat-like manner, always placing her hind feet on the ground where her front paws have already stepped, to ensure her safety.
Just like that, after walking for a few minutes, the view suddenly opened up, and the man and four beasts walked into an underground space that looked like a hall.
There was no other exit in the entire space, and it seemed that this was the end. There were no vines in this space, nor was there a beating "heart" surrounded by vines, which made Xu Xin a little disappointed.
They must have taken the wrong path. Xu Xin looked at his location on the map and found that he was still some distance away from the tree house.
However, Xu Xin did not rush back. He was attracted by the plant growing in the middle of this space.
There were three huge, very bright flowers, growing together in a cluster. The petals of each flower were as big as lotus leaves, and were bright red like drops of blood. In the center of the countless petals, there were clusters of yellow stamens, which looked extremely beautiful.
Xu Xin was a little confused. How could there be such brightly colored flowers in this dark underground?
He didn't dare to get close easily. After all, in nature, the more beautiful the colors of a creature, the more dangerous it is.
"Hmm!" Coco suddenly cried out.
...means there is danger!
Xu Xin, holding an explosive crossbow, aimed at the cluster of vibrant red flowers ahead, ready to pull the trigger if anything went wrong. Silver King approached him, and Ah Fu flapped his wings and took flight. Mimi arched her back, ready to pounce and crush the flowers.
Suddenly, the pistil of one of the flowers trembled a few times, and a thick red mist suddenly spurted out from the pistil.
Xu Xin almost pulled the trigger directly, and Mimi's body trembled. It was obvious that she wanted to take action but held back.
The flower did not continue to spray out red mist, but stopped after just a moment. The red mist continued to spread in the air and finally diluted into a faint red mist.
A few meters away, Xu Xin smelled that familiar pungent smell.
His eyes gradually widened.
This red mist floating in the air was actually released by the flowers in front of us!
The red mist spread around them, and Xu Xin couldn't help but breathe some in. He had a boost in his mental strength at this point, so he didn't feel any discomfort, just that it smelled a bit bad.
Beside him, the blood veins on Silver King and Mimi's bodies emitted a red light that was brighter than before, and even the blood veins on Ah Fu's body lit up with a faint light.
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