Silence is the biggest pressure, Liu Chen secretly gritted his teeth, and the tail of the Tilu gun in his hand involuntarily pressed into the sand and stone, the tail of the Tilu gun was the tail of the golden dragon, and it was also sharp, but it encountered resistance after piercing about two inches, which felt different from piercing into ordinary sand and stone, it should be something harder than sand and stone, Liu Chen bowed his body and took out a scimitar from the ring, a large amount of sand and gravel was thrown aside by him, and the thing that was stabbed by the tail of the Tilu gun quickly appeared in Liu Chen's eyes, but it was a stone half a meter long and short, It stands to reason that such a thing could not have appeared in such a desert, and it looks absolutely artificially generated, looking at its shape, it looks more like ...... A stone staircase?

After discovering this fact, Liu Chen picked up Tilu and rummaged around this stone step, if, it didn't take long, Liu Chen found another stone step half a meter above this stone step, as the stone steps were discovered, a road leading to an unknown area seemed to have appeared in front of Liu Chen's eyes, the road of the stone steps became lower and lower, and gradually came to the col, a stone wall flooded by yellow sand appeared in front of Liu Chen's eyes, Liu Chen seemed to be able to feel the feeling of silence coming from behind this stone wall.

After removing a large amount of sand and stones, a covered cave appeared in the col, looking at the dark and deep cave, Liu Chen's eyes were a little more resolute, the sky outside had darkened, and the situation in the cave was even more indistinguishable, Liu Chen turned on the lighting function on his watch and slowly walked into the cave.

The cave is very wide, it seems that there are often people passing, Liu Chen picked up the steps and went down, and found that the more he went inside, the more steep the angle, it seemed to be going straight to the belly of the mountain, the cave was very dry, it was said that the belly of the mountain in this desert should be a little stuffy, but Liu Chen didn't feel it, but felt that the further down he went, the more gloomy it became, and the coolness that penetrated into the bone marrow became stronger and stronger.

Not long after walking, a metal door suddenly appeared in Liu Chen's sight, and when Liu Chen approached, there was a soft buzzing sound, as if something had been set up, and a layer of protective cover appeared in front of the metal door. Liu Chen was a little puzzled, according to Green's words, this underground base has probably been abandoned for at least a few hundred years, and the settings in it can still operate normally after so many years, and this is still an underground base that has not seen the light of day, and I don't know what energy this base can rely on to support his operation.

Fortunately, Green had already thought of this problem, Liu Chen had the highest authority pass provided in the nest in his hand, and a probe on the door scanned it for a while, as if confirming Liu Chen's identity, and finally there was a buzz, the protective shield disappeared, and the door opened with a bang.

The base that has been unmanned for hundreds of years is not as dilapidated as Liu Chen imagined, of course, some traces of panic during the retreat still exist in the fall, if there are no traces, Liu Chen is a little skeptical that there is something else here. The empty space can't be said to be spotless, but there is no such dead air that has not seen people for hundreds of years, as Liu Chen stepped in, some settings started naturally, and many equipment settings were not named by Liu Chen.

The place where Liu Chen came in should not be the main entrance, there is a metal passage that is not wide, about a hundred meters long, there are many rooms on both sides of the passage, some are open and some are closed, Liu Chen should be some warehouses and ordinary daily necessities area from the outside.

Liu Chen probably glanced at it a few times, and shouted a few more times in the team channel, and the answer to him was still only his own echo. Liu Chen tightened the tilu in his hand, the uneven texture of the scales on the golden dragon gave Liu Chen some confidence, and there was a metal door at the end of the passage, but this one was much bigger than the metal door he had just now, as if behind this door was the real secret here, at this time, a sigh sounded in the passage, Liu Chen turned around suddenly, everything in the passage was still the same, as if the sighs just now were just Liu Chen's hallucinations, or just the whistling wind.

Liu Chen squinted his eyes, the situation became even more blurry, he felt as if he had stepped into a trap, a mysterious existence waiting in the door behind him, and his comrades-in-arms were afraid that they had fallen into the hands of the other party at this time, but Liu Chen couldn't understand that since the other party could capture Lao Xu and the others silently, then even if he faced himself, he should have a great chance of winning, but why hadn't he been attacked at all so far? What is the purpose of this mysterious being?

As soon as Liu Chen stretched out his hand, a magic array appeared at his feet, and the little beast that had been put away by himself appeared in the magic array out of thin air, as if he understood what Liu Chen was thinking, the little beast looked around and shook his head gently at Liu Chen.

Liu Chen didn't speak again, one hand was on top of the metal gate, listening to the sound of the metal gate starting, looking behind the gate, a strong light came, Liu Chen stretched out his left hand to block the strong light, and an empty hall appeared in front of Liu Chen's eyes, this is an underground base similar to the nest, whether it is the artificial sun in the sky or the equipment and facilities on the ground are extremely similar to the nest, Liu Chen can't help but have a question, has the nest been the way it is now for hundreds of years? Could it be that the nest has been what it is from the beginning? How many years has the nest existed, and in these long years, has the nest been the same as it is now?

If the technology of the nest is far beyond the earth, Liu Chen can understand it, but if the nest has always been like this, then has the nest not developed for so many years? Those old guys in the nest, those researchers like Lao Xu, those assistants who have no combat effectiveness, have never changed the nest? How many years has the nest's technology been ahead of the earth, and why has there been no progress for so many years?

Liu Chen shook his head slightly, these questions are not what he should think about now, his current question is how to find his comrades-in-arms, how to break the current situation, and what kind of secret power is there here. Don't? A very bad thought flashed through Liu Chen's mind.

This base is really too big, so big that if Liu Chen wants to take a look at every place alone, I'm afraid it will take at least a day, Liu Chen raised his hand and looked at the map on his watch, the red area on the map kept flashing, and in the end, Liu Chen seemed to have made up his mind and walked towards the red area on the map.

The base hall is connected to a total of four areas, and the location of the red area looks like it should be the area on the upper floor, and if you want to get there, you have to go through a passage first, when Liu Chen opened a metal door again, Liu Chen looked at everything in front of him, dumbfounded...... (To be continued.) )