This vast wasteland is a bit like the dead open space that I walked through shortly after entering the world of Tiankeng. However, most of the rocks in this wasteland emit a faint fluorescence, less darkness and more light. The road underfoot was not difficult to walk, and since there was no danger, everyone moved much faster. However, walking in this wasteland of piles of rocks, it seems that I have returned to the scene when I first entered the sinkhole. It is bland and unremarkable. There are no glowing trees, no shining stars, and no strange insects. Ancient creatures, everyone always feels as if they are in another world, as if that magical place only appeared in a dream. After two short rests on the way, it was dusk in the outside world, and as far as the eye could see, a towering mountain loomed ahead. Ning Xiaofan took out his tablet computer. Only a short section of the red main line was displayed on the screen, and the direction pointed by the end of the main line was the looming mountain. There was the destination called the Grotto, and he was finally going to survive. Ning Xiaofan told everyone the news with a happy face. After hearing this, Fatty and others couldn't help but cheered and cheered. The so-called "Wangshan Mountain" means that the distance between the mountain and the mountain is really not that close. Ning Xiaofan and his party walked for nearly two hours before they could roughly see the true appearance of the mountain. It is said to be a big mountain, but the shape of the mountain is quite strange. The top of the mountain looks relatively flat, narrow at the top and wide at the bottom. There are no steep peaks and no continuous mountains connecting it. It is like a huge rock, standing so independently at the end of the wilderness. , looking at it, it looks like a huge diamond-shaped volcano, and it also looks like an artificially cast cube. When they got closer, everyone also discovered that on the top of this huge cube stood a tall signal transmission tower and several huge white radar pot covers. There were also caves of different sizes on the walls of the cube that looked like honeycombs. , What¡¯s even more bizarre is that the cube also emits colorful fluorescence, giving people a gorgeous feeling. Seeing the artificial traces on the top, everyone couldn't help but exhale a long breath, and their eyes were full of joy. The grotto had arrived. "Welcome to Base No. 4 - Grotto." Suddenly, a clear baritone voice came into everyone's ears. This sudden sound shocked everyone. Where did this sound come from? Just when everyone was looking at each other, several searchlights flashed out from the bottom of the cube in front of them. The lampposts of the searchlights covered everyone's bodies and dazzled them. And at this moment, a rumbling sound was heard, and a ray of light bloomed again at the bottom of the cube. The ray of light was first a line, then extended towards both sides, and the ray of light gradually became wider. When everyone took a closer look, they realized that it was A huge iron door slowly opened. As the huge iron door opened, through the light, several figures could be vaguely seen emerging. The scene in front of me is so sci-fi and shocking. At this time, although everyone knew that this place called the Grotto was the final gathering place for various prospecting teams, they were still excited when those figures appeared. However, they met Labelle and his group on the road. Such friendly human beings, it is inevitable that everyone feels a little uneasy and a little nervous. Among everyone, Ning Xiaofan was relatively calm. Among the top-secret information given by Aunt Xiang, there was a detailed description of the grotto. This place called the Grotto began to be constructed secretly a few years ago. It is the last base to enter the world of Tiankeng. It can also be called Base No. 4. After several years of continuous construction and development, it is now The scale is issued and there are people stationed all year round. The grotto is also the final gathering place, transfer station, and material supply place for all prospecting teams. Ning Xiaofan also knows that in addition to the above functions, this grotto is also a scientific research institute and has navigation functions. The map displayed on the tablet can be accurately positioned, and the transmitting tower on the top is always functioning. Otherwise, it is estimated that Ning Xiaofan and his party would not be able to find this place until what year or month it would be. Ning Xiaofan can remain calm because he knows in his heart that the Grotto, as Base No. 4, can maintain video communication with the ground through the transmission tower. In other words, the Grotto is under the surveillance of the ground, so it can ensure absolute safety. Five men and one woman came out of the huge iron door. Walking at the front was a man and a woman, both wearing outdoor suits and work badges on their chests. The man and woman were both over middle-aged, about 40 years old. left and right. Following closely behind were four armed men wearing headsets and holding Type 95s. The five men and one woman came closer, and the middle-aged man wearing a field suit said with a smile: "Welcome, welcome to the grotto, who is your team leader? Please come out and talk." "I am the team leader." Ning Xiaofan stepped forward and said. "Hello, hello, my surname is Tang, Tang Yaoqiang, the first manager of the grotto base" A man who called himself Zhang Yaoqiang came up.After taking the initiative to shake hands with Ning Xiaofan, he introduced the middle-aged woman next to him: "This is Zhang Jiayi, the second manager of the grotto base. Welcome." "Hello, my name is Ning Xiaofan, and I am the advance prospector. Captain of the team." Ning Xiaofan also introduced himself. "So you are Captain Ning Xiaofan. Thank you for your hard work. In the past few days, my ears have almost become calluses when I hear your name" Ning Xiaofan listened to the meaning of his words, as if he knew that there was such a person like him. The man was slightly startled: "Have you heard of me?" "No, speaking of it, you and I both belong to the Xinao Group and can be considered colleagues. In the past few days, the higher-ups have asked about you from time to time" Someone above asked themselves? It's probably either Aunt Xiang or Sister Yulan. Well, Ma Yu is the person in charge of the base, so she may also ask about herself. While thinking about it, Ning Xiaofan glanced at the work badge on his chest. It had the logo of Xinao Group on it. He smiled and said: "I made the people above worry, but fortunately, we finally got to the bottom of the field." Tang Yaoqiangpo Wei sighed and said: "Yeah, if you don't come again, I don't know how to reply to what I said above. Fortunately, you finally arrived safely. Haha, your advance prospecting team is the last to arrive "Oh, Tang Director, are there other previous teams that have arrived? " "Yes, several advance prospecting teams have arrived one after another, but your team has not arrived. I am worried. I am also considering whether to send a small team to look for you. Look at you, there are so many people on the road. Was there an accident? " "It was an accident" Ning Xiaofan replied vaguely, without explaining the reason. Before setting off, he signed a confidentiality agreement. Everything he saw and encountered on the road must be kept confidential until he returns to the company to write it down. The report was handed over to the immediate supervisor, the little goblin. Tang Yaoqiang seemed to know what was going on. He didn't care about Ning Xiaofan's vague response and didn't ask any questions. He smiled and said, "It's good to be here. I can take care of all your hard work along the way." As you can imagine, once you get here, you can rest assured that you can rest in peace and contentment for a while. " Tang Yaoqiang said, turning to look at Professor Zhao and Li Wanting, with a trace of doubt in his eyes: "Captain Ning, the structure of your team is not big, right? I remember that there are regulations on the number of people in the advance team, which should not exceed seven people. Your team seems to have a few more people. "The meaning of Tang Yaoqiang's words is relatively obscure, but the meaning is very clear. Professor Zhao in the team is older, and there is a rather beautiful woman, who is obviously not a member of the advance prospecting team. Ning Xiaofan quickly explained: "Director Tang, The extra people were met on the road. Let me introduce to you. These are members of the joint scientific expedition team of Xin'ao and Jiangnan University. Let me introduce to you. These are Professor Zhao, Professor Wu, and Dr. Li Wanting. , and this captain Yang Haiyang, the security guard of the scientific expedition team" After listening to Ning Xiaofan's introduction, Tang Yaoqiang suddenly said: "It turns out he is from the joint scientific expedition team, I know, I know, but how? Only these people? What about others? I have a list there. There are more than this number of people. By the way, the leader should be Wang Zhipeng from our company. Why isn't he there? " "This it's a long story. I will report it when I get back. "Ning Xiaofan still vaguely replied, "That's it, I understand" Tang Yaoqiang smiled meaningfully and said, "Okay, let's not talk outside. According to regulations, we have to ask you before entering the base. Show your ID. This is a rule, so please understand. " "It should be. "Ning Xiaofan smiled, took out his identity card, and then motioned to Fatty and others to take out their IDs. Fatty and others looked ragged and in a state of embarrassment. They were unaware of the IDs they carried with them, so they took them out one after another. , revealed his identity. After checking his identity, Tang Yaoqiang made a gesture of invitation and walked into the iron door. The iron door slowly closed, and the inside of the iron door was brightly lit, and a spacious hall came into view. , However, the hall seemed empty, without any facilities, except for a few elevators that were simply surrounded by iron railings. There were two armed guards standing in front of each elevator. Before going up to the rather crude elevator, Tang Yaoqiang stopped, turned his head and said to the woman named Zhang Jiayi: "Director Zhang, Captain Ning and his party will be settled by you. " Zhang Jiayi nodded. Then, Tang Yaoqiang looked at Professor Zhao, Li Wanting and others: "Please come with me from the joint scientific expedition team, you have other arrangements. " When Tang Yaoqiang said this, Ning Xiaofan and others were stunned. Li Wanting was a little reluctant and hurriedly said: "Director Tang, can't we be with Captain Ning and the others? " When outsiders were around, Li Wanting was more careful not to expose the relationship between the two, and directly addressed Ning Xiaofan as Captain Ning.