The old man said with a solemn face: "What's the matter? Isn't this the room we arrived at earlier? ”

"It's not certain yet." As he spoke, Zuo Qingcang had already pulled out the dagger again with an indifferent face, and began to carve a mark on the ground: "Let's wait here to see if this mark will disappear." ”

The old man nodded, and he immediately understood what Zuo Qingcang wanted to confirm. And if the marker doesn't disappear, it means that they may have been trapped in the labyrinth of stone chambers.

Staring at the ground in front of him tightly, Zuo Qingcang asked the old man on the side: "After you entered the stone room, did you sense the flow of artificial spiritual power?" Is it possible that we have fallen for the Dao Technique? ”

"No, if there were, I'd be able to see it." The old man shook his head: "It may be a Dao technique, or it may be a mechanism." Because many Dao techniques do not need spiritual power to operate, just like the star map at the gate, it is the use of Dao techniques in the process of construction, as long as it is built, even if there is no spiritual power to provide energy, his own storage can make people crazy. ”

Next, the two discussed several possibilities, Zuo Qingcang counted the time while talking, until half an hour later, the mark in front of him was still here, without the slightest change.

The old man's face was gloomy, and Zuo Qingcang nodded: "The mark will not disappear, which means that we entered a different room when we went backwards." With that, he had entered the middle passage again, and walked to the stone chamber where he had just gone.

But the two looked at the room, and the place where Zuo Qingcang had returned to mark before was already empty. This mark is also gone.

Then the two tried a few more times, and the old man's face became more and more ugly, no matter whether he was moving forward, backward, left, middle and right, any three passages, as long as he went back and forth once, the mark would disappear.

"Every time we walk through the passageway, we come to a new stone chamber?" The old man looked at the three passages in front of him and the one behind him incredulously, and said with some uneasiness: "What is going on? Is there something that follows us and erases the marks we made? ”

"Unlikely." Zuo Qingcang shook his head: "We now have an average of about thirty seconds to pass through the guò passage on average, and it takes sixty seconds to restore these scratches to ...... back and forth."

"Always give it a try!" The old man stood up: "Anyway, we went all the way back, if we can't return the same way, it means that there is really something wrong with this place, and it is not that someone erased the scratches." ”

Zuo Qingcang did not object, in this situation where there were no clues, there was no way to test every possibility one by one.

So the two of them followed the original route all the way back. Because they took the middle passage every time, it stands to reason that they could go back the way they came.

But they had a strange feeling when they were returning the way they came.

The stone chamber is square, and there is a passage in the stone chamber on the front and back, on the left and right. Before, when Zuo Qingcang and the old man determined that the passage behind them was the way back, there were only three ways forward for the entire stone chamber for them.

But now, the two are not sure that they are on the path back. So after walking through the stone chamber in succession, a strange feeling enveloped them, because in terms of appearance, they were no different from the previous process of advancing through the stone chamber.

A sense of confusion and a sense of disorientation enveloped them, and although they were told in their minds that they were now going back, the visual information made them feel that there was no difference from the previous advance.

The two of them could only silently calculate the number of stone chambers in their hearts. But the more he counted like this, the more irritable the old man's face became, and the faster his steps became.

Finally, when the two of them walked into a stone chamber again, and the stone chamber that the two of them counted had reached the thirtieth place, the old man said anxiously: "It's the thirtieth, when we came, there were definitely not so many stone chambers. And in these stone chambers, we have not found a single mark, which means that we have not passed through any of the rooms that have been marked before. ”

Zuo Qingcang pressed one hand on his shoulder and said coldly: "Don't worry, you have to stay calm at this time." ”

The old man nodded reluctantly, and exhaled deeply, as if he wanted to spit out the boredom in his chest.

Zuo Qingcang looked at the stone chamber in front of him and judged: "The situation in front of us is either a change in space, or we have some kind of hallucination. Among them, unless there is a Taoist formation such as spatial transfer in this building, whether it is an illusion or a spatial change, it is nothing more than a way to deceive our eyes through visual, structural and other techniques. ”

The old man shook his head with certainty: "There is absolutely no Dao technique of spatial transformation here, even if this kind of Dao technique has been lost in the Western Wei Dynasty, only the relics left in the ancient era exist, and any one of them requires huge spiritual power to induce, it can never be this kind of Dao technique." ”

"So, let's see if there's something wrong with the structure here." Zuo Qingcang looked around the stone room and thought, "First of all, we have to make sure that what we see in front of us is whether there is a problem." ”

I saw Zuo Qingcang take out the rope tied around his waist, hand one end of it to the old man, and hold the other end in his hand. Then the two stood along the walls of the stone chamber.

"What are you doing here?"

"I'll see if there's anything wrong with this stone chamber first." Zuo Qingcang said as he used a rope to measure whether the entire stone chamber was really a square as it was seen, and whether the distance between the four passages was the same as it was seen.

"No problem." After the measurement, the structure of the stone chamber is the same as it sees. Then he looked at the old man: "Have you ever heard of a trick?" ”

"Tricks?"

"yes, I once learned a little bit of trick with a guy named David Copperfield, and he said to me that if you want to deceive the audience on stage, the most important thing is to get the audience's attention and draw their attention to irrelevant places. It's called substituting fiction for reality, and the audience will never be able to reveal the mystery of the trick, because they never really see it. ”

The old man asked, "David Copperfield?" Is it a Westerner? ”

Zuo Qing Cangtong guò Liu Zhicheng's memory knows that after crossing the New University 6 and continuing westward, it is a country composed of Westerners, whose culture and ethnicity are similar to those of Europe and the United States in the previous world.

Zuo Qingcang said: "Well, very interesting Westerners. ”

The old man followed Zuo Qingcang's gaze and looked at the passages around him. Compared to the brightly lit stone chambers, the unlit passages are pitch black.

The stone chambers, apparently illuminated by the lights, attract their attention, while the passages, shrouded in darkness, are relatively easy to ignore.

The old man said thoughtfully, "What do you mean, the problem is in the passage?" ”

"If the rooms we enter are different every time, then the passage connecting those rooms is obviously key."

Zuo Qingcang left one end of the rope in the stone room, and he and the old man took the other end of the rope, then carved a cross mark, and finally randomly picked a passage on the left side and walked in.

"According to our previous experience, after entering the passage, every time we enter the passage, there will be a new stone chamber, so what if we have a rope on our body?"

"When we go back the way we came, the rope disappears? Or is there still zài? ”

"What about the markings we make?"

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