With a long tail note and echoes, only the sound of a mechanism twisting could be heard from the coral-giant door.

Yebei hurriedly led everyone back and lay down. If it's not the sound of the door opening, it's the sound of murder...... If you really fly out a little Qin crossbow, I'm afraid no one can stand it.

At the mention of this Qin crossbow, Lao Gu lay on the ground and sighed unconvinced: "We have a gun in our hands, and we are even afraid of this primitive tool!" Hey, what a world! ”

While observing the movements around him, Yebei asked lightly: "Have you watched "Warring States Policy"? ”

“…… Night boss, don't slap people in the face, the books I have read since I was a child are just a few words, you can say what you want to say. Lao Gu said to Yebei with a gloomy face.

Yebei smiled slightly and replied: "It was mentioned in "Warring States Policy" that the strong bows and crossbows in the world are all from Han. Sand, Shaofu, and Shili are all shot 600 steps away from each other. Do you know what 600 steps is? Let's not talk about how far you are in a step with such a height, and calculate it strictly in accordance with the ancient way. In ancient times, one step was six feet, and one foot in the Qin Dynasty period was equivalent to 23.1 centimeters now, and that step was 1.386 meters. Six hundred steps, or 831.6 meters......"

Before Yebei finished speaking, Lao Gu lay on the ground and sighed with his mouth wide open: "My dear mother...... The addition and subtraction of integers within 100 is the meaning of my life's mathematics. Because if I don't make a mistake, even if I succeed...... But Boss Night, how did you do it? You can figure this thing that way?! ”

"......" Lao Gu interrupted, and after a mess, Yebei didn't know what to say anymore.

Qin Zhen was anxious to listen to the sidelines, and couldn't help but reprimand Lao Gu: "Don't make trouble!" The point of Yebei is not how those numbers are calculated, okay? It's about how strong the attack power of the Qin crossbow is! You keep saying that you have a gun, do you know how far the AK47's accurate range is? ”

Yebei whispered at this time: "Although none of us have ever seen the real Qin crossbow, but since there is a record in the history books. Then be careful. Sometimes, these ancient weapons are really more lethal than modern firearms. Once Yudong triggers the wrong mechanism, then what can come out of this secret palace must be something like arrows, crossbows, and fire. ”

Qin Zhen couldn't help but smile bitterly when he heard these words. They now look like professional tomb robbers, guarding against traps in the tombs. But then again. Even if Yingzheng and Fusu are still there, will they watch the foreign powers eyeing China's national treasure and turn a blind eye?!

They won't, never!

Now Yebei's words are very realistic, he didn't boast about Yudong in front of everyone, saying that this qiē would not happen at all. In this way, everyone is also mentally prepared, and Yudong will not have too much burden and pressure psychologically. Expectations are too high, and on the contrary, they create an invisible pressure.

However, the sound of the mechanism did not seem to have happened until it stopped. In this way, Yudong's first blow should have been right......

He himself probably realized this, and said to everyone with a little relief: "Gong Shang Jiao Zhengyu represents five bells in different directions. This chime is activated by the five-tone twelve-rhythm. There are four left, all right, this door should be able to open......"

It can be heard that Yudong's love is not so calm. Because more than sixty are possible. It's not easy to choose. How low are the odds of 5 out of 15 lottery tickets? What's more, now it's almost equal to five out of sixty?

Although Yu Dong seems to have some understanding of the hints of the five tones and twelve rhythms, it is a very risky choice after all.

Yu Dong examined the bells in front of him again. He silently recited: "Huang Zhong...... Gu washes ...... Ruibin ...... Nanlu ......"

While listening, Juntian frowned slightly, and whispered to everyone: "Yudong is talking about four of the five tones and twelve rhythms now, which should represent the bell ...... in different positions."

As soon as the words fell, Yu Dong raised the wooden hammer and struck it on the four bells of different sizes in one go! Four bells with very different sounds rang out...... Qin Zhen and the others even hugged their heads and closed their eyes. Waiting for the upcoming "results".

As before, each bell was followed by the sound of a mechanism opening and closing. The ancient and heavy sound tugged at everyone's heartstrings.

But......

In the end, Xia Yudong is Xia Yudong! He never disappoints! After the sound stopped. Then came the sound of the heavy coral gate slowly opening!

Qin Zhen and the others were all overjoyed, lying on the ground and looking at the stone door that was slowly opening, the feelings in their hearts were self-evident.

Along the way, if it weren't for him Xia Yudong, who would have thought what the final result would be? Every time he turned the tide at a critical moment, and every time he turned the tide at a critical moment. Whether it is from literature and martial arts, he is perfect so vividly. Even if it is a little-known ancient rhythm, he can save everyone's lives through guò's own knowledge.

For this man, it is more than a sentence of admiration to express the mood.

While Qin Zhen was happy and excited, he didn't forget to subconsciously and habitually glanced at Yu Dong's expression.

Surprisingly, he was not as calm as usual at the moment. Instead, he closed his eyes tightly, and he looked like he was finally relieved.

is still the same sentence, he is not afraid of death, he is afraid of killing the people he cares about.

The coral stone door finally opened completely, and it was still pitch black inside. It seems that it is another secret palace within the secret palace. But none of them, no matter who they were, were not frustrated or discouraged by this, because they knew that the result would be like this. Yuwang Jiuding, where is it so easy to get?

Everyone stood up with Yebei, gathered in front of the gate with Yudong, and quietly looked at the deep and empty dark space inside.

Qin Zhen sighed heartily at this time: "We, we are finally coming to an end, right?" ”

No one answered, presumably everyone was in the same mood as Qin Zhen at this moment, uneasy.

Lao Gu asked at this time at an inopportune time: "You say...... Will that Japanese devil use those Taoist spells on us again, provoking a group of water ghosts and mermaids and other things? Brother Jun...... Although I believe that evil prevails over good, but with my previous experience with the broken guest house, I am afraid of his tricks......"

Not to mention Lao Gu, even Qin Zhen still feels terrified when he thinks of the scene of the ghost crying and howling that day. He can't forget the appearance of Yudong looking at the sky and painting runes, and he can't forget the appearance of He Xi being possessed by ghosts, the dark corridors and the lonely ghosts and wild ghosts in the Qing Dynasty, where can there be one that can be easily forgotten?

However, Juntian just lowered his head slightly and smiled at this time, and didn't say anything. However, Yu Dong took over and said: "Dao Chong is like the sect of all things. Abyss, and use it or not. Frustrate its sharpness, resolve its disputes, and its light, with its dust, and clear. It seems to exist, like the emperor first. Taoist spells are not something that people like him can do lightly. Don't worry, he shouldn't have the ability to create the same formation again. ”

For Lao Gu, the first half of what Yu Dong said was obviously incomprehensible, and he didn't have to understand it. He didn't care what Taoist scholarship was like. All he cares about now is whether Shigeaki Aoki is still a threat to all of them.

Now that Yu Dong has said it, he has no play, so Lao Gu simply put his mind at ease, and said with a big grin: "Okay, Dong Shao, you have spoken, why don't we go?" It doesn't matter where the grandson comes from! He has the ability, so he took that girl and hid it all the time! In the end, Lao Gu deliberately raised his voice, as if he wanted Aoki to hear it hidden around.

Yudong glanced at Yebei and Juntian, and the three of them nodded to each other very tacitly, and then walked into the huge coral stone door without hesitation.

The secret of Fusu may be hidden in this stone gate. What they are about to face now is the deepest secret of Great Qin.

The dark corridor has a natural gorgeousness. Qin Zhen had to admire that Fusu, who could resist the Xiongnu and build the Great Wall with Meng Tian, was indeed not an ordinary person. Take the current Yongdao as an example, there is a luxurious atmosphere of the emperor's house everywhere, but the surface is not whether it is gold bricks, silver tiles, beads and jade, but every trace of artificiality, you can see the incomparable fineness. This is the magnificence and domineering of the emperor's house.

After passing through the mechanism of the bell just now, Qin Zhen and the others were now simply broken. If it were in the original, they would also pay attention to the surrounding environment and anomalies, for fear that a mechanism would suddenly appear, and they would not be able to cope with it for a while.

But now it's different, even if it's in front of them, they can't figure it out. Instead of wasting this brain, it is better to walk calmly and generously, and there is nothing in front of you...... Resign yourself to fate.

When a person is unable to make any struggle against an unknown fate, the only thing he can comfort himself with is nothing more than a clear conscience.

It's just that this sentence is easier said than done...... All of them are in danger, and they have to have a clear conscience...... Sometimes Qin Zhen and the others would ask themselves when they thought about it, why and why did they ......

While their thoughts were drifting away, they had already walked a long, long road. But it's similar to the effect of the previous layer, and there are no mechanisms here...... But it's calm and flustering. (To be continued......)