It took a long time for the discomfort and panic caused by the harsh sound to fade away. "What's going on?" Professor Zhang muttered in a panic, and he didn't know who he was asking. The big head craned his neck and looked back and forth, and said, "I'm sure this road is not the one we came in, what should we do?" ”

Gao Tong's eyes were full of confusion, "Are there really any evil spirits in the world that hit the wall?" Go all the way to the front and take a look. ”

Everyone walked through the passage one after another, but this time no one dared to go too fast, people need to hold together in the face of unknown dangers to gain a sense of security, the more people are close to each other, the stronger the psychological comfort. The strange sound never came again, and the passage remained unchanged from beginning to end, the first Gao Tong became slower and slower, and after ten minutes passed, he suddenly stopped, pointed straight ahead with his finger, and said in a surprised tone: "There is a dead end ahead." ”

The crowd took a few steps forward in confusion, and the light of the miner's lamp above their heads shone brightly, and a stone wall suddenly appeared in front of the passage, completely cutting off the road and the slightest luck we still had.

Professor Zhang walked to the stone wall blocking the way in a few big steps, and stroked the stone wall with his hand, "This is the broken road stone that was lowered from above with a mechanism?" I just wanted to follow the interface and say that it made sense, but Professor Zhang immediately denied himself, "No, this is one with the surroundings, there is not a little gap around, this is indeed not the way we came, but what is the problem?" ”

Gao Tong glanced at the time, then looked down at the compass he had just taken out of his arms, and suddenly his eyes lit up, "Let's go, let's go back to the stone room that implied the direction of the eight gates just now, and the way back is hidden there, and I don't know how the road will change if we delay time here." ”

Without much explanation, Gao Tong turned around and quickened his pace and walked along the passage towards the stone room, everyone hesitated for a moment, they all understood that Gao Tong's actions must have his reasons, and they didn't bother to ask more, they followed closely behind Gao Tong and almost trotted back.

It didn't take fifteen minutes, and the six of them returned to the octagonal stone room out of breath, staring at each other with big eyes before they could catch their breath, and looked at Gao Tong in puzzlement, Gao Tong was wiping the sweat oozing from his forehead, and said to himself: "It's okay, I'm finally back." As he spoke, he raised his head and looked around again, "It's likely that we've entered a very large facility. The change in the direction of the eight gates was caused by the mechanism being activated at the right time, and if I guessed correctly, the harsh sound just now was caused by the friction between the organs. ”

Silently reacted quickly, and suddenly shouted in surprise: "Merry-go-round? ”

Gao Tong nodded heavily, squatted on the ground, sketched a regular octagon on the smooth ground with his fingers, and drew eight channels evenly around it, and then set these figures in a large circle, and said: "This big circle is the trajectory followed by the rotation of the mechanism, every time it reaches a fixed hour, it will slowly rotate once, and the docking of the channel is misaligned, and the road when we came in didn't know which of the eight channels was connected." ”

The big head said "ouch" and pulled my arm with his hand, "Isn't this the truth of the rotating tomb in the tomb of King Zhou Yuan?" ”

As soon as Gao Tong's diagram was drawn, I actually understood it thoroughly, but the scale of this mechanism was unexpectedly large, and we were in the center of the relatively slow movement when it was activated, and with the heavy and slow rotation that can be imagined, it was impossible for us to realize that Gao Tong's compass had just really made a compass, and he only woke up after he found that the direction was misaligned in the passage.

"This principle is the same as the second hand of a mechanical watch, but we don't know how many squares it will go every time it rotates, and it is difficult to find the way back if we don't know the pattern." If you rely on blindness, once you enter the murderous gate......" Professor Zhang raised his head and stared at Gao Tong hopefully, "In my opinion, let's try it according to the evolution law of the traditional eight gates." ”

Gao Tong smiled with embarrassment on his face, "The Eight Gates are extremely high and profound metaphysics derived from the Qiankun Bagua, and they are in a class of their own, I just involve them out of a very shallow interest, and I can make do with the direction of the Eight Gates by the hour, and the Eight Gates of Metaphysics are all-encompassing, relatively simple, such as the mutual restraint between the various gates, and the calculated Jimen will turn into a murderous door in some cases, and even these I can't get through." ”

Everyone was a little discouraged, saying that Gao Tong also had books to use when he hated less, which made me feel quite balanced in my heart, and then I felt that this psychological balance came at a really bad time. Thinking about it to himself, he asked silently: "Just find the corresponding passage and retreat in the direction you came in, can't you?" ”

Gao Tong shook his head, "The direction I determined in this stone room before must have changed," and then frowned, "Since every qiē is being promoted by the organs, let's see if we can find a way to find the laws of the operation of the organs...... For a mechanism of this size, the secret room of the mechanism must be very large, and I don't know where it is hidden. ”

Professor Zhang sighed, "There are solid stone walls all around, and if the secret room of the main organ of the control hub is so easy to find, then this mechanism will be meaningless." Now it seems that we can only take risks and grope one way at a time. ”

Gao Tong pondered for a moment, and said impatiently: "It's okay, but let's choose the direction of Jimen to go." ”

The two of them came to an agreement, and the rest of them didn't have to argue about anything. It was close to four o'clock in the afternoon, I was secretly anxious, this time it was not as good as the previous times, we didn't have a little food on us, and the water saved was probably only enough for a day to drink, if we couldn't get out of trouble by ourselves, and hoped that the people on the cliff would find out that something was wrong and come to the rescue, a month might not be able to blow up another passage in the solid mountain, and basically without provisions, waiting for three or four days would be enough to consume everyone to the point of weakness and death.

Gao Tong measured the direction with a compass, and pointed to a pitch-black passage diagonally in front of him, "Where is the birth gate, let's choose the birth gate." ”

Without any hesitation, everyone walked in one by one, and the passage that had not been set foot for thousands of years was instantly broken through by a few lights, and a slightly old and corrupt smell of the air poured into the nose. didn't go far, Gao Tong stopped, struck a waterproof match, saw the flame beating and burning normally, and then gently blew it out, and said in a tired voice between exhalations: "Oxygen is okay for the time being." We don't have to be discouraged, we can always get out if we try more, in fact...... This mechanism is big, and the principle is not difficult. ”

That's what I said, but I heard that Gao Fairy Tale was discouraged when he heard the words, and he couldn't be blamed for this, I haven't seen anyone who can surpass Lao Lin in terms of psychological quality, and secretly thought, it would be nice if Lao Lin was here, this guy looks like a cultural person on the surface, and he is an outlaw who can't be scared to death on the inside.