It turned out that the top of the ventricle was extremely high. In the light of the fire, I saw that the dome of the ventricle was at least ten feet high, which was equivalent to thirty meters in later generations. The diameter of the surroundings was three feet. It was an extremely tall and wide stone chamber.

Li Zhen ignited three oil mortars around him, and the flames ignited, illuminating the ventricle as daytime. This magnificent ventricle was clearly displayed in front of them.

The ventricle is actually like an inverted bell, all made of granite. The stone walls are very smooth and there is no gap, but the ventilation is very good and there is no feeling of depression.

In the middle is a round stone pillar, which requires two people to embrace. The stone pillar extends straight towards the dome. The stone pillar is surrounded by nine dragons and winds upwards. There are nine dragon heads at the top, as if it is about to break out of the top.

The surrounding stone walls arched slightly. After closer inspection, the arched area was covered with scales. It turned out to be nine stone carvings of dragon bodies, distributed according to the nine palaces, Gan Palace, Kan Palace, Gen Palace, Zhen Palace, Zhong Palace, Xun Palace, Li Palace, Kun Palace, and Dui Palace. There is a stone dragon in each direction, extending to the top.

The nine dragons on the dome gathered together, and nine bronze dragon heads appeared, close together, and the dragon's mouth opened, just aiming at the nine dragon heads on the stone pillar.

"Brother Li, the entrance to the underground palace is here!"

Di Yan found the entrance to the ground, which was two huge bluestones, which were put together like Tai Chi diagrams, and were blue and white, which was particularly conspicuous. This made Li Zhen a little strange. Since it was originally a underground palace that worshiped Buddha treasures, why was the entrance a Taoist Tai Chi pattern?

The two bluestones at the entrance of the underground palace are tightly tucked together, and nine keys are needed to be opened. The nine keys are on the stone pillar in the middle and must be opened one by one. Unfortunately, one key is missing, which forced the underground palace to be abandoned.

However, according to Xie Daogu, the hub that opened the underground palace was still rotating extremely slowly, but they couldn't feel it.

Every seven years, the entrance of the underground palace will automatically open. At the same time, a copper ball will fall from the mouths of the nine dragon heads at the top, just into the mouths of the nine dragon heads on the lower stone pillar. After the nine bronze balls fall, the entrance stone door will be closed again.

The problem is here. The underground palace has been around for a long time and is no longer so accurate. The nine copper balls have been completed for a very short time. Even if they have wings, they have no time to take out the items offered in it.

The only solution is to intercept nine copper balls very accurately, so that the time can be extended a little longer. As long as you are agile, you can completely remove the objects from the underground palace.

Xie Daogu told him that the reason why he failed in the past was that he could not intercept the copper ball on it, and the stone gate closed too quickly.

At this time, Li Zhen suddenly realized that it was not as difficult as Xie Daogu said. As long as a high shelf is built in advance and a piece of cloth covers the stone pillar at the top, the copper ball will not fall into the dragon's mouth on the stone pillar.

For Mrs. Xie, this is simply a breeze. If you find someone who is agile, you can also take out the things from the underground palace.

Then why did it be said that the failure in the past was because of the inability to intercept the copper ball? And since the underground palace is opened every seven years, why didn’t Yu Linglong, which had a seal, take out before?

This made Li Zhen feel a little wrong. He vaguely felt that Xie Daogu did not tell him the truth.

"Brother Li, the hour is coming!" Di Yan whispered to remind Li Zhen, who was tilting his head to ponder.

"A Yan, I think something is wrong!"

Di Yan pondered for a moment and said, "Brother Li, didn't you expect that if we didn't do it, your eldest sister would be unsafe."

Li Zhen also thought of someone like Xie Daogu, who is cruel and ruthless, speaks nicely, but he will not give them any choice. Xie Daogu had already threatened his words yesterday. If he didn't do it, he might be in danger.

Moreover, he had already guessed a few points from the name Wu Yinghong, and I'm afraid the person behind the scenes is related to the Wu family.

Li Zhen nodded silently. At this point, he had no time to think about it anymore. He took off the shadow bow from his back. This was his way. He shot off the copper ball with an arrow. The arrow was blunt and no longer sharp. It could increase the contact surface with the copper ball.

Although Li Zhen's archery skills are excellent, it is still not easy to shoot nine bronze balls ten feet away in less than half an incense stick. This requires absolute calmness and the ability to seize opportunities.

Di Yan took out a roll of thin rope, with plum blossom hooks at one end of the thin rope, and she was responsible for going to the underground palace to collect things.

There was also an iron rod and an iron hammer next to them. This was their emergency measure. If there was too little time, Li Zhen would first use the iron rod to block the stone slab of the underground palace, and then use the hammer to smash the stone slab bit by bit.

Perhaps no one dared to destroy the underground palace, but he ignored it.

"Brother Li, it's about to start!"

Li Zhen had already heard the sound of "click!click!" from his heart. He set his bow and arrow, pulled the bow like a full moon, aiming at the dragon head in the direction of Qian Palace.

At this time, the entrance of the underground palace slowly opened, and a cold wind blew out without any odor. As Xie Daogu said, there are clever vents in the underground palace, so there is no need to worry about any filthy air.

"Brother Li, I'm going down!"

Di Yan rushed down the stone stairs with a torch in his hand. Just as Di Yan went down, a ball slowly appeared in the dragon head of Qiangong. Almost as soon as the ball was exposed, Li Zhen's arrow broke out and shot at the copper ball like lightning.

The two dragon heads are only three feet apart, and the copper ball falls very short, which requires Li Zhen to seize the opportunity with great accuracy. If he fails earlier or later, he will fail.

Just as the copper ball fell off the mouth of the dragon head, a long arrow shot, and with a crisp sound of "Dang!", the copper ball was shot out.

The bronze ball landed and made a harsh collision sound, but Li Zhen was almost unaffected. He had drawn out the second arrow and pulled the bow and aimed at the dragon head of the Kan Palace.

...........

Di Yan ran down to the underground palace with a torch. There was an oil lamp on the niche, and the lamp oil was poured into it. Di Yan lit three lamps in a row, and the light of light filled the entire underground palace.

The underground palace is actually not big, and its structure is like a blooming lotus flower. There are lotus pods in the middle. There are nine corridors around it, like nine petals, corresponding to the nine palaces on the dome above. At the end of the corridor is the jade platform where objects are placed. Currently, there are only two corridors with Yu Linglong.

Di Yan carefully studied the map of the underground palace last night. There was no mechanism in the center of the underground palace. The mechanism was hidden in the corridor, with shooting holes on both sides. As long as you step into the corridor, crossbow arrows will be shot out on both sides, and it will not be shot in one go.

If you use the key to open the underground palace gate, the hidden weapon mechanism will be automatically closed. Otherwise, even if you smash the stone slab and enter the underground palace, you will still be unable to escape the shooting of the mechanism's poisonous arrows.

Xie Daogu also told them clearly that if they want to avoid the poison arrows of the machine, there is only one way to crawl through the air and not touch the ground. Di Yan thought about it all night, and she felt that this way was the only way.

Li Zhen was absolutely not good at it, and only she could do it. Di Yan did not hesitate and went straight to the corridor of Gangong. The corridor was about three meters long and was very smooth. On the jade platform at the end of the corridor, there was a piece about half a foot long, with golden satin wrapped around it.

Di Yan's eyes fell on the Buddha's niche at the top of the jade platform. There was originally a white jade Bodhisattva inside, but the jade Bodhisattva had been taken away. There was nothing in the Buddha's niche, and there was a stone trunk on the edge. This was what the Taoist nun Xie told her.

There was no time for Di Yan to carefully distinguish it. She threw out the plum blossom hook almost without hesitation. The plum blossom hook fell into the Buddha niche accurately. She pulled it hard, and the plum blossom hook hooked the stone ridge on the edge of the Buddha niche.

Di Yan quickly tied the other end of the rope to the stone pillar outside. She pulled it hard twice, jumped gently, climbed over the rope in the air, and quickly crawled into the corridor.

Her agile skills were fully displayed at this time. In just a moment, she climbed to the end of the corridor, reached out and caught Yu Linglong, and put it in her backpack.

But at this moment, Li Zhen's anxious shout came from the entrance, "Hurry up! Come out quickly, the stone gate begins to close!"

Di Yan was shocked, and didn't care about the other Yu Linglong, so she climbed the rope and crawled outward.

It turned out that Li Zhen had just shot nine bronze balls, and he found that the stone gate at the entrance began to close, and there was no sign of delay at all.

What made him even more frightened was that the bluestone door was at least one foot thick and was polished extremely smoothly, so where could it be easily chiseled open?

He was very anxious and shouted that Di Yan came out, and picked up the iron rod and pressed the stone gate. However, the stone gate closed and weighed more than ten thousand pounds. The iron rod was immediately bent, and it fell into the underground palace with a 'clang!'

The stone gate slowly closed, and Li Zhen was so anxious that he was about to go crazy. Seeing that the stone gate was only two feet wide, it would be over if he didn't come out.

A stream of passion suddenly rushed to Li Zhen's forehead. He actually had the urge to die with Di Yan. Just as he was about to jump into the underground palace, a figure rushed out of the underground palace with a "swoosh!"

Li Zhen could no longer suppress the excitement in his heart, and rushed forward and hugged Di Yan tightly. At this moment of life and death, he realized how important she was in his heart.

The stone gate closed with a bang. After a long time, Di Yan gently pushed him away, and she saw her face full of smiles.

The moment she rushed out, she could see that Li Zhen wanted to jump into the underground palace. Of course she understood what that meant, which made her feel very moved. She suddenly stopped hating the female Taoist priest, and even a little inexplicably grateful to her.

The girl's reserve made Di Yan restrain the emotions in her heart. She smiled and said, "Why are you so unconfident in me?"

Li Zhen felt his legs were weak, and he was still scared. He simply sat down and said annoyedly for a while: "I think we are all crazy. Is it necessary to take this risk?"

Di Yan squatted beside him and comforted him softly, "Because we never thought it would be so dangerous, it was too late to find out, and Brother Li didn't have to blame himself. After all, we are not gods, and we can't predict everything. Let's learn from our mistakes and gain wisdom!"

Li Zhen sighed and said, "But I almost lost my life. This is too expensive. I am too stupid."

"I think it's worth it. Look, aren't I jumping around in front of you now?"

Di Yan took off the skin and said a little regretfully: "It's a pity that there is too late to get only one Yu Linglong. I wonder if it's considered a breach of contract?"

As soon as Di Yan finished speaking, a woman's voice came from the entrance of her ventricle, "It's great to get a Yu Linglong. Seven years ago, even your master almost died inside."

The two of them quickly turned around and saw the female Taoist nun Xie Ying slowly walking in, followed by Wu Yinghong and more than a dozen subordinates.

Li Zhen and Di Yan stood up, Li Zhen glared at her, but Xie Ying smiled faintly and said, "I have told you before that things are not easy, right?"

Li Zhen said hatefully: "But I shot nine bronze balls, but there was no delay at all, so what do you say?"

"Do you think it's not effective? I can tell you that if you don't intercept the copper ball, the stone gate will not be able to open at all. When the fifth copper ball falls, the stone gate will start to close.

Seven years ago, it was because we didn’t do the matter of intercepting the bronze ball that Gongsun almost died inside. Although she rushed out at the last moment, she didn’t get a single jade linglong.”

Speaking of this, Xie Ying sighed again, "We will not intercept the copper ball unless we have to, because once the copper ball is intercepted, the underground palace will never automatically open again, and we dare not take this risk."

Only then did Li Zhen realize that the automatic opening system of the underground palace had been destroyed by him. He looked back at the slightest stone door, and then the other Yu Linglong could no longer be taken out.

At this time, Xie Ying stretched out his hand and said, "Give me Yu Linglong!"

Li Zhen hesitated for a moment. He didn't want to hand over Yu Linglong so happily. Just as he showed a hesitant expression, Wu Yinghong and more than a dozen subordinates raised military crossbows and pointed them at them.

Di Yan knew very well that they had no choice. She took out Yu Linglong without hesitation and handed it to Xie Daogu, "Since we have taken out Yu Linglong, it's up to you to fulfill your promise."

Xie Ying took Yu Linglong and looked at Li Zhen deeply, "My master is already waiting for Mr. Li in Yuexia Villa. He will tell Mr. Li everything he wants to know, please!"
Chapter completed!