Zhao Chen saw someone praising Professor Mack, in order to divert everyone's attention, he also praised the professor with everyone, but the professor's expression was not me at all, and he didn't know what was going on, and everyone couldn't praise it, could it be that he opened the door accidentally? Zhao Chen also heard that even the ram was used......

Everyone saw that a large piece of the ground that had sunk down, and the black ones didn't know what was going on, but looking at the Z-shaped passage in the middle, they all secretly exclaimed in their hearts that they were lucky, it turned out that they had just walked over on a floating plane! However, Professor Mack fell into deep thought, he would not be naïve to think that it was just a fluke, this was obviously caused by the fact that he had touched the mechanism just now, and some supporting things were moved away, although he didn't know what it was, but the pop sound of something falling into the water just now, Professor Mack obviously felt that something should be bigger than the stone door, which was also what his intuition from years of experience told him. Pen & Fun & Pavilion www.biquge.info

After a moment of amazement, they noticed the passage behind them that was exposed after the stone door fell, and it was pitch black, and they couldn't even see the two meters in front of them, which were still due to the effect of the lighting equipment they were wearing. Everyone didn't dare to act rashly, because everyone thought that Professor Mike had opened the stone door just now, so they all looked at Professor Mike with a posture of looking at him. Professor Mack also understood everyone's thoughts, lifted the light strip on his head, and began to walk towards the door. Zhao Chen also followed behind everyone at this time, anyway, there was a problem with the person in front of him, and he felt that it was really a wise choice for someone not to come out at this time.

Professor Mack stopped after walking for a while, and then took the flashlight of the guide behind him, he felt that this kind of thing was a waste of resources on such a layman, this guy had been shining a flashlight on their legs, but never gave the light to the front, and Professor Mack noticed that the front seemed to be particularly dark, as if there was something. When he took the flashlight and shone it forward, combined with the flashlight and the searchlight on his head, which was not very bright, he couldn't help jumping, and then he found that there was only a stone bridge like a stalactite that was narrow enough for one person to walk in front of him, and it was pitch black below, and there was a faint sound of the waterfall colliding with the water below, but the sound was a little trembling when listening to the height.

"Everyone be careful with your step, walk over the stone bridge in front of you in turn, pay attention to the suspected stalactites on the stone bridge in front of you, only the width that can be used for one person to walk, everyone be careful not to slip and slip!" Professor Mike reminded as he took the lead in moving forward step by step.

Everyone after the professor's reminder also carefully moved forward little by little, the professor moved a step forward, the people behind also followed a step, although everyone wore a searchlight on their heads, but they didn't dare to look down at all, at this time, especially at this time, the most afraid is to panic, at this time the most reliable way to ensure safety, is to obey the order as taught in the professor's class. Sure enough, the guide who fell at the end looked down, and when he saw the bottomless darkness, he felt a little panicked, and his feet couldn't help but tremble, and he disappeared silently at the end of the team. Professor Mack frowned at this time, although he knew that this kind of expedition and investigation as the vanguard would definitely cause some dangers and disasters, but in the face of academic pursuit and the desire for the unknown, personal sacrifice was still small, which was also the lovely side of this kind of scholar.

"Everyone follow closely, if something happens, you must shout out loudly, whether you are hooked by something or trapped in something, do you know?" the professor said after discovering that the guide was missing.

"Got it, Professor Mike!" everyone's answer was light, but it was neat enough to give Professor Mike a reply. In Zhao Chen's opinion, these people are all academic maniacs, and they have a master like this, even if something happens, they have a bottom line of security, so they are not very worried, but in fact, they are also a little nervous, and they have no protection, they have such an indomitable spirit of dedication to academics, they are really a model for my generation, of course, this kind of thinking is just thinking about it.

After crossing this narrow and slippery stalactite bridge, they came to a relatively flat stone platform, although others thought it was nothing, but Zhao Chen felt that it seemed to be really a little familiar, as if he had seen this ghost place, but it was definitely not the same bird appearance now, that familiar feeling was like you left your hometown for more than 20 years, and then returned there, and found buildings that had been changed beyond recognition, both familiar and unfamiliar, but Zhao Chen just couldn't remember where he had seen this ghost place.

Continuing from the platform, there was a descending staircase, derived from stalactites layer by layer. The strange thing about this strange place is that the stalactites that are supposed to be produced by dripping water seem to have been artificially made, first the stone bridge, and now the stone staircase, extending downward step by step, and with the current light, there is no end in sight. But walking on this slippery and narrow stalactite stairs, the secret is only one slow word, too impatient, when will you disappear may be you, after all, there are no guardrails for you on both sides of the stone steps here. No, maybe there is, but the years have conquered them.

After walking for an unknown amount of time, they finally came to a platform that felt even darker, and at this time some of them began to regret why they didn't wear a luminous watch, at least they could calculate how much time they had walked, acting in this darkness, and slowly seemed to forget their time, just like being abandoned in time and space, all kinds of uneasiness and negative emotions would begin to emerge more or less.

"Very well, we have walked a distance, we will rest here for a while, and then we will continue, this time it is an unprecedented ruin, who of you has ever seen an underground ruin with such a complex design of the road? It is comparable to modern bridges and parks, I believe that the things buried in this must be the same as the merchant said, so that I will not regret dying! With that, Professor Mike took out the food and water in his package and began to eat. It's just that at this time, everyone didn't seem to notice, and the light of the searchlight on the forehead seemed to be even dimmer than just now.

In fact, there is one thing that Professor Mack has always been wary of, this kind of design is a bit powerful, and there are often some designs for outsiders, after all, although they say that they are archaeologists, but in a sense, they are not much different from tomb robbers. However, the discovery of a lost civilization is the highest attraction for archaeologists, and even life in front of it does not seem so heavy.

After a short rest, they continued to set off, Professor Mike still walked cautiously in the front, after all, he was the most experienced, and Zhao Chen was placed in the middle at this time, which was also a relatively safe position, after all, he was the only student in this team, and naturally became the core of their care.

After a gentle slope, there is a depression in front of you, with an underground river gushing with a torrent on one side and a rocky barrier on the other. The professor took out a trekking pole from his bag and tested the bearing capacity of the depression, and then stepped on it with his foot, and found that it was not a soft mud pit trap like a swamp, but he still commanded the back: "Everyone hold hands, there is a depression in front of you, to prevent it from sinking, if you fall near this water source, it will really be nine deaths." ”

Everyone also followed the professor's instructions, holding hands and slowly stepping on each other's footprints. After walking for a while, they finally found some traces of artificiality, a building on the cliff wall on the left, like some kind of force shoveling up the house that was originally built on the flat ground, along with the ground, and pressing directly into the cliff wall.

"What kind of power is this?!Is it a prehistoric building? In addition to the magic technique, only the movement of the earth's crust can press the artificial structure vertically on the cliff wall in this way, right?" But Professor Mack is really a professor, and when he thought of the artificial structure, he took out the rope and mountaineering equipment, and prepared to climb up to take samples and study it carefully.