Following the circular passage, he continued to walk down. The more he walked, Wang Zan and Yu Hanqiu became suspicious, because there was only the passage left, and the rest was gone. In their imagination, the underground palace had completely changed drastically.

This is definitely not just a place to store money, but the area is too large. I am afraid that if all the money in the entire Qing Dynasty was placed here, it might not be able to be fully filled.

Until Wang Zan and Yu Hanqiu seemed to have walked into the area in the middle of this circular passage.

At this time, the two had been in for at least two hours. Except for the previous discoveries, they were always tentatively moving forward for the rest of the time. Although they were walking and going, they probably had already walked about two kilometers.

A strange and puzzled atmosphere appeared in the hearts of the two.

The two stood still and did not move. In front of them, just two meters away, a tall iron gate appeared where the flashlight landed, extending from the bottom to the top, at least three meters high and about one and a half meters wide.

The sides of the door stretched out and there were no other entrances and exits, which means that the space inside the door would be larger than they imagined.

Wang Zan looked up and took a flashlight and said, "I found that I had a cognition that I was wrong before."

"What?" Yu Hanqiu asked in a daze.

Wang Zan said: "At the beginning, I asked the villagers to dig out the top floor of the underground palace. It looked like a football field was big. Later, after entering it, I found that the judgment was a bit wrong, and the area might be twice as large. But now it seems that the roof of the shed I dug out before was actually the top of the space in front of me."

Yu Hanqiu nodded, and he also saw that the material of the roof was almost the same as the ones exposed outside, and they were all made of striped stones. She asked a little suspiciously: "Is this the place where gold, silver and jewelry is really contained?"

"You should be able to put this idea aside or just strangle it to death," Wang Zan shook his head and said.

Yu Hanqiu let out a long sigh, looking at the place where the flashlight fell, and said, "Why is the shape of this door so weird? It has no guards and no locks, but it seems to be very tightly closed. It seems to be difficult to open after closing it, but it looks quite like a vault."

"It's not that there is no lock, but you can't tell the way to unlock the lock. This is the Luban lock, which is equivalent to the high-end password lock in ancient times. The structure of the entire door is formed of a mortise and tenon structure, so if you want to open this door, you have to unbutton the mortise and tenon on the door..."

Yu Hanqiu said incredibly: "How did you know? Have you seen it before?"

"The creator of the Forbidden City in the capital is called Style Lei. In his era, in addition to the imperial palace, almost most of the residences of the ministers in the capital were from him. Style Lei was very proficient in Luban art. I have come into contact with descendants of Style Lei, and I learned a little about it." When Wang Zan explained, Yu Hanqiu looked at the door curiously, then reached out to touch it, but unexpectedly, he shrank back "swishly" when he touched it. It was obvious that the temperature on the door was extremely low, and it was even a bit bit harsh.

“It’s so cold…”

Wang Zan said "Hmm?" and walked over and rubbed it with his hands. He frowned and said, "It's not cold, it's caused by excessive yin energy."

"What does it mean?" Yu Hanqiu asked in confusion.

"If there are too many corpses underground, it is easy to produce a lot of yin energy. For example, if you walk in the cemetery at night, you will feel chill all over. It is not the effect of fear in your heart, but the result of the invasion of the human body because the yin energy is indeed too heavy and then invades the human body." Wang Zan sighed long and looked at the door in front of him and said: "Although my subconscious mind told me that it would be better not to try to open this place, I can't resist loneliness and curiosity."

"You mean there is danger here?"

Wang Zan nodded cautiously and said, "Such heavy yin energy only shows one situation. There must be many corpses in this confined space. After so many years, the door has not been opened. If we open it, the yin energy leaks out and the yang energy hedges, it is very likely that you will see the legendary big rice dumpling. You can also understand it as the predecessor of the zombie!"

Yu Hanqiu couldn't help but tremble. He took two steps back and hit the wall. After she stabilized, she asked tentatively: "Why don't we go?"

"Are you leaving, aren't you upset? I tell you that people are cheap. Although you realize that something indescribable happens, you can't help but be curious. Even if you leave, it's blocked here, you may have been thinking about what's in it, especially this kind of historical issue." Wang Zan's eyes flashed with a small light of wisdom, as if he had already known the human form.

Yu Hanqiu said helplessly: "I want to say I'm not curious, and you can't believe it either? So, don't ask for my opinion. If you can open it, just open it. If there is danger, then you will still be there? What am I afraid of?"

"You trust me very much, but I'm afraid that I will be unsure of it by then." Wang Zan reached out and groped for the Luban lock on the door. It was not difficult for him to unlock this thing. Lin Wenqi and Feng Shi Lei had told him about this high-end password lock before.

As Wang Zan's fingers unbuttoned the mortise and tenon structures one by one, he heard a "plash" sound coming from the door. The gap in the middle seemed to be staggered a little, revealing the groove part between the two doors.

"Did you see it? This is the door handle?"

Yu Hanqiu said in surprise: "It's so amazing, it's actually designed like this."

"The ancients' wonderful ideas of builders are not worse than those of today's skyscrapers. Some buildings may not even be able to imitate them now." Wang Zan reached out and handed them into the groove, and then said to her: "Push open a little, get away. If the yin energy inside gushed out and rushed to you after the door opened, you might be seriously ill."

Yu Hanqiu hid to the side, and Wang Zan slowly opened the door. The door seemed very tall and heavy, but so many years have passed, and there was no "creaking" sound when it opened.

Wang Zan held his breath, and a sensation of cold wind blew into his face, and at the same time it also brought a very heavy smell of decay. He was stunned. The decay smell was so decayed that it looked like a corpse.
Chapter completed!