In the cave, Xiao Yan untied the silk silk. Although this was dangerous, the length of the silk silk was too short to ensure that it would fall vertically from the cave above. If you want to go a little deeper, and look at the location where the demon's body used to live, you can't help but be able to catch it. Therefore, after Xiao Yan pulled the silk xiangshang noodles a few times, he decisively untied the silk silk and walked towards the depths of the cave.

The fire fold has been extinguished, Xiao Yan's infrared vision only has 30 minutes, and the cooldown time is 40 minutes, that is, before the next use of infrared sight, there is a full 10-minute window period, and he must ensure the light source in these ten minutes.

As Xiao Yan left the foothold, he could already hear the sound of the stones above his head being removed, which was proof that Laikaon continued to move the entrance of the cave. Laikaon obviously wanted this hole to be bigger, so that if something went wrong, Xiao Yan could escape in time. Because this cave is well closed, the rustling sound of the earth and stones falling from above from time to time is very obvious, and this sound makes Xiao Yan's heart warm again.

The passage in front was not rugged, and this situation became even more obvious after Xiao Yan walked more than ten meters inward. The walls of the entire cave were very neat and smooth, as if they had been specially cut by something, and the ground was harder than Xiao Yan had imagined. Looking at this larger and larger passage, and the feeling of déjà vu on the soles of his feet, Xiao Yan suddenly had an illusion that the cave he was in was not a Ming Dynasty trial shijie at all, but a continuation of the previous wasteland trial shijie. And he, at this time, was standing in those underground pipes, in front of him. It's the concrete bunkers that don't know what's in depth.

Xiao Yan walked diagonally in this pipe for a distance of about 50 meters. Shijie in front of him suddenly expanded. The entire cross-section of the cave has been more than 30 floors up and down, and this huge height makes it impossible for Xiao Yan to see the top of his head at all. Unlike the nuclear bunker where Xiao Yan once stayed, this was an unusually quiet shijie, no matter how long he walked, Xiao Yan was accompanied only by the sound of his breathing and footsteps, and other than that, there was no other sound. A dripping of water that can often be heard in a cave. The sound of snakes crawling was absent from the cave, and the silence was even more eerie than the underground nuclear bunker that had been.

Xiao Yan stood in this passage that had been magnified several times before, let out a long breath, and did not continue to move forward, now it seems that it is not enough for him to enter this cave alone, Laikaon and them must also come in together. As for the air circulation, if you look at this huge space, you can see that there should be no shortage of oxygen here. The only question is whether they have the ability to see in the infrared. After all, this place is close to the belly of the mountain, and it is impossible for such a thing as light to shine in.

Thinking like this, Xiao Yan vaguely heard some voices behind him, because the surrounding environment was unusually quiet, even if it came from a place dozens of meters away, it was still very clear in Xiao Yan's ears. He turned his head to see that Calristo was also walking down the passage without using any light sources.

"I didn't see any light below, I thought something was wrong with you, this passage is straight, so theoretically the light won't be blocked," Calisto saw Xiao Yan staring at him, said a few words incoherently, and then said dejectedly: "Okay, I admit it, I was a little worried about you, so I came down to see what was going on." ”

"Xiexie," Xiao Yan interrupted Calisto's explanation and whispered, "Xiexie, but wait a minute, it's best to let Laikaon come down and take a look, the situation here is a little unusual." ”

Calristo looked around and said, "It's a very big hole, and this guy lives in a pretty good environment." ”

Xiao Yan shook his head and said, "It's not that this hole is big, but you see, these cave walls." ”

Calristo was stunned for a moment, and turned her head to look at the cave wall beside her, she didn't see anything in the darkness at first, but her race allowed her to easily adjust the focus of her gaze. As the new focal length slowly took shape, a slightly blurry image finally appeared in front of Caristo's eyes.

The image appears to be about a dozen meters wide, and the upper edge is even higher and not easy to see, most of the lines have been blurred, and only a silhouette can be seen. The exact content of the image could not be done with the infrared line of sight, but Calristo could feel that in the center of the image, it seemed that the temperature was significantly higher than that of the surroundings.

Regarding Xiao Yan's discovery, Calisto said: "It seems that this cave was not dug by the demon himself, and before this demon, there were signs of human habitation. ”

Xiao Yan nodded and said, "We need enough light, just the two of us are far from enough, I'll go and call Laikaon down." ”

Calristo didn't object, although it was the best choice to have someone guarding the entrance of the cave, but there seemed to be something unusual in this cave, and the area that the three of them could take care of would be larger.

On the other hand, on the open hillside, Laikaon is more striking than a small cave that sticks to the hillside, and from the point of view of not being discovered, it is not a good choice to enter the cave.

As for the sealed entrance, with the quietness of the cave and the hearing of Lecaon and Calisto, they could hear it clearly as others changed the structure of the cave. With the speed of three trialists, it was enough to completely seal the qi at the entrance of the cave, and as long as you thought about Xiao Yan's Eye of the Storm skill, you knew that sealing a hole was meaningless to a trialist with a detonation effect.

Xiao Yan walked past Calisto's side, the sound of clicking was very clear in the passage, and Calisto's gaze subconsciously followed Xiao Yan's back for more than ten meters, and then came back to his senses. She suddenly reached out and touched the blurry image, and at the same time, a rough image was automatically generated in her mind based on the concave sensation of the contact.

It seems to be a hunting scene, and the various images are very abstract, similar to the murals of the Lascaux caves in France, which belong to the daily records of primitive humans. The difference is that in this image, the human body is significantly larger, while the animal is a little smaller. In the Lascaux Caves in France, the animals are very large, as are the Spanish Altamira petroglyphs from the same period as the Lascaux Caves in France, where the size of the animals is exaggerated, while the figures are much smaller, and some of the figures are obviously deformed.

In this Ming Dynasty trial Shijie cave outside the Shanhaiguan, in these primitive images, the human body size can basically be about the same size as the two-horned animal in the center of the picture, and it seems that the depiction is more complicated, although the animal in the center of the whole picture is the focus of the whole image, but the original person who sketched the mural here seems to be more willing to add more brush and ink to the human body.

Whether this was due to the primitive man's lack of overall image control skills or some other reason, Calristo was more concerned with the animal with two horns in the whole pattern.

It was a double horn that was almost the same length as its entire body, there was no tail, at least not that Calristo had touched, and the animal seemed to be walking upright. It stood there, its whole body very straight, its head raised high into the sky, and Calristo could touch a small notch in the head, as if to indicate that the animal was screaming at the sky. Its horns hung back at this moment, like extra points of support, keeping the monster balanced, and there should still be something in its two forelimbs, but Calristo didn't touch it. Colors may have been used before, but now the darkness makes it impossible for Calisto to see them, and it is also impossible to determine the specific image of the animal.

Calristo shook her head slightly, the image in front of her, which could not see the specific shape, always made her feel that something was not quite right, or rather, touching the image made her feel absurd.

At this moment, the sound of Xiao Yan and Laikaon talking over the cave interrupted Calisto's thoughts, she thought about it, and turned her head to walk towards Xiao Yan's side. The trumpet-like passage behind him, and the petroglyphs on the walls of these passages, always gave Calristo a strange feeling, as if something absurd was waiting for them in this cave.

Calristo is not afraid of danger, but she does not like the absurd.

Xiao Yan and Laikaon didn't say a few words, and the sturdy trialist climbed down from the top of the cave. The radius of the cave of normal width for Xiao Yan and them was much narrower for Laikaon, and when he squeezed down, the entire cave was widened by him, and from Xiao Yan's angle, the light was much brighter.

"It's very big inside the cave, and you won't be suffering like this anytime soon."

Xiao Yan said as he turned around and walked towards the depths of the cave.

Laikaon half-shrunk his neck and glanced left and right, although he had entered part of the mountain, there were still large traces of collapse around him, this cramped environment made him very uncomfortable, compared to Xiao Yan's slender person, the strong figure was sometimes a disadvantage.

Pushing away the two large rocks around him, Lekaon made the space around him a little wider, but this action was obviously a useless exercise, and at least ten meters in length in front of him were this kind of narrow chasm that only allowed one person to walk together. Laikaon sighed, pulled the great axe from the ring, and whispered, "Hey, if there's nothing in it that makes me feel that these durabilitys are worth it, I'll definitely ask you for compensation, Parin, definitely." (To be continued......)