Su Yichen frowned slightly, another door? Although this door was a little different from the door in the outside world, Su Yichen still didn't dare to be careless. You must know that the previous experience of being inhaled by that door still made him feel uneasy, not to mention that he couldn't predict what the situation would be behind this door when he couldn't find Wan Changchun and Hu Zhijun.

However, in this square, Su Yichen did not find Wan Changchun and Hu Zhijun, which means that they may not be in the same place as him, and they have carefully checked all around, except for the door in front of them, there is no other entrance and exit, maybe open it to find the answer.

After hesitating for a moment, Su Yichen finally decided to go in and have a look, because this was the only possibility of finding a companion. Thinking of this, Su Yichen tentatively raised his hand and pushed towards the door, and when the palm of his hand just touched the surface, the door disappeared in front of him silently in an instant, as if it had never appeared, and at the same time, a dark passage was revealed from the location of the door.

Su Yichen was stunned, he didn't expect this to be the case, he stood outside the passage in surprise, squinting his eyes and looking at the inside of the passage. This passage is obviously artificially formed, the entrance is slightly narrow, but the inside is very deep, and the square outside, the inside of the passage is also lit with milky white lights, but this light is slightly darker, the four walls of the passage are also white, square and integrated, because the passage is slightly extended downward with a little arc, Su Yichen stood outside and could not see its end.

After hesitating, Su Yichen finally decided to walk into the passage, he cautiously took a step towards the inside of the passage, and when he stepped into the passage, there was no movement, which made Su Yichen feel a little more at ease, and then took another step, at this time he was already standing inside the passage, subconsciously looked back at the entrance, and saw that the entrance was still open, Su Yichen was completely relieved.

"Maybe Teacher Wan, they'll be in there?" Su Yichen thought so, and walked slowly along the inside of the passage, with the extension of the passage, the terrain began to gradually decline, walking about 100 meters, Su Yichen could confirm at this time that this passage is a spiral-shaped descending structure, but the angle and slope are not large, and it is difficult to find if you don't pay attention.

Continuing to walk forward, the road in front of him seemed to be no different from the one that had been walked all the way, the surroundings were still very monotonous milky white, and the walls of the passage had not changed at all, Su Yichen also deliberately paid attention to his feet, but he also did not find anything abnormal.

After about another 300 meters, the front of the passage was finally a little different, Su Yichen subconsciously stopped, and looked at the place in front of him, which seemed to be the end of the passage.

"Strange, what the hell is this place?"

Su Yichen couldn't help but ask himself, since they found that strange building in the desert, it seemed a little incredible. Whether it was the exterior of the building, or the square he was in, and the pyramid, including the star map on the pyramid, and even the passage where he was now...... None of this can be explained in a rational scientific way.

Who would have built such a huge structure in the depths of the desert? And how much space is there in the interior of this building? The encounters along the way made Su Yichen suspect that it was not even as simple as a building, in his opinion, this was almost a very large base. What's more, whether it is the material on the surface of the building, or the door that sucks them in, or even the strangeness of the pyramid and star map, the passage where it is located, etc., all of them cannot be built by the ancients, even modern people spend a lot of manpower and material resources, I am afraid it is difficult, not to mention anything else, let's just talk about the simplest materials, until now Su Yichen has not figured out the origin of these materials, let alone a series of other unanswerable questions.

"Maybe ......." A strange possibility flashed in Su Yichen's mind, if this idea is used to explain these may be able to work, but as a rigorous scientist, Su Yichen clearly knows that this kind of speculation has no scientific basis, if you want to confirm the truth of the speculation, you can only continue to explore to find the answer.

What's more, the whereabouts of Wan Changchun and Hu Zhijun are still unknown, and he is worried about their safety, and now Su Yichen is most urgent to find them. Thinking of this, Su Yichen continued to walk forward briskly, towards the end of the passage.

When he came to the end of the passage, he was surprised to find that the place he was in was actually a dead end, because at the end, Su Yichen, who thought he would come to another place, only found that he had just walked into a room of about 20 square meters, this room was also boxy, except for the passage where he entered, there was no decoration or anything inside the room.

Standing alone in the center of the room, Su Yichen was a little confused, because there was no fork in the passage along the way, which meant that the end of the passage was this place. But why is it different from what was originally expected? What does it mean if it's just an empty room?

At this moment, Su Yichen suddenly felt a slight shock under his feet, and without the slightest defense, he couldn't help but shake his whole body, and he couldn't help but think of what he had encountered in the desert before, and hurriedly turned around to leave here, but who would have thought that when he turned around, he found that the passage he came in was actually gone.

This time, Su Yichen was scared a lot, he didn't know how the passage mouth disappeared silently, and the passage mouth after the disappearance was as if it had never appeared, there was no difference between the wall and the surrounding walls, and there was no trace of the original shadow of the passage.

Thinking that he was trapped in this small room, Su Yichen felt a wave of despair in his heart, he rushed to the original location of the passage, hammered the wall hard, and shouted loudly and desperately, but it was still the same. At this moment, Su Yichen was like a guinea pig in a closed cage, endless fear and sorrow surrounded him tightly like a tide, Su Yichen even regretted that he shouldn't have come in recklessly, if he didn't enter this room, maybe he wouldn't be trapped in this ghost place.

Su Yichen has always thought of himself as a strong person, but at this time he realized that his heart was still fragile. When he was sure that he was locked up here and the entrance had completely disappeared, Su Yichen felt endless sadness in his heart after experiencing a short period of emotional excitement and panic. At this time, he suddenly thought of Luo Yan, the bits and pieces of their time together, and those vows...... Stroking the scarf that was still around his neck, the weakest thing in his heart was instantly touched, his eyes gradually moistened, and his incomparable thoughts and worries gradually came to his heart.

"I'm sorry Xiaoyan, maybe...... Maybe we won't see each other again, and I'm ......sorry that I can't make those promises come true again. Su Yichen muttered to himself, he gently put the scarf on his cheek, felt the warmth it brought to himself, breathed its taste deeply, seemed to smell the familiar fragrance again, and slowly closed his eyes as if he was holding his most beloved person.

I don't know how long it took, maybe a few minutes, maybe longer, just when Su Yichen thought that he would die quietly in this room, thus ending his life, the ground shook slightly, and he subconsciously opened his eyes. Su Yichen was a little confused, he looked up, but when his gaze swept to the wall in front of him, joy suddenly surged.

The passage that disappeared before suddenly reappeared at some point, and at this time, Su Yichen could not care about why this passage suddenly disappeared and why it suddenly appeared again. At this moment, Su Yichen only had the joy of escaping from a desperate place in his heart, so he quickly stood up and rushed out without hesitation.

It wasn't until he rushed out of the room and came back to the passage that Su Yichen looked back at the room and breathed a sigh of relief. Although he didn't find the whereabouts of Wan Changchun and Hu Zhijun inside the passage, he finally escaped from the damn secret room. The joy of the rest of his life after the catastrophe made Su Yichen feel extremely happy, thinking of the previous panic, he was a little embarrassed in his heart, and smiled self-deprecatingly, Su Yichen turned around again, ready to return to the previous square along the passage, and at this time, when he saw the scene in front of him clearly, the whole person was stunned again.

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