Three round stones of general size next to each other, two below and one above. Each round stone is about forty centimeters in diameter.

"I found it—I finally found it." Yan Jianhua's excited voice came from the well—the voice was a little muffled and buzzing. But very clear.

Yan Jianhua used an electrician's knife to pry open the top round stone, and the black rumbling behind the round stone was really an unfathomable dark passage.

Yan Jianhua turned around the hole with a flashlight, and he could vaguely see the stone walls on both sides of the dark passage.

When Yan Jianhua pried open the two round stones below, a triangular hole about 80 centimeters high and about 80 centimeters long appeared in front of Yan Jianhua.

When Yan Jianhua pried open the first round stone, a cold wind and cold air rushed to his face. Yan Jianhua shuddered involuntarily.

Ouyang Ping and Lu Yunpeng watched Yan Jianhua enter the entrance of the underground palace. By this time, the ropes on the wheels had loosened, the barrels were swaying from side to side in the well, and some of the sand and moss from the cracks in the stones had fallen into the water.

The first thing Yan Jianhua did when he entered the entrance was to use a flashlight to sweep up and down the dark passage, which was about 1.8 meters high and about 80 centimeters wide, with an arch at the top, and the entire secret passage was made of stones. The humidity inside the tunnel is very high, there are many water stains on the stone walls, and some stone cracks have water seeping out. Yan Jianhua also felt a chill of yin and yin.

Li Wenhua quickly shook the wheel, and when the barrel rose to the mouth of the well, he grabbed the rope above the barrel to the east, and then rode on the barrel with the help of Ouyang Ping and Lu Yunpeng.

There is also a flashlight in the pocket to the left to the east.

Two minutes later, Zuo Xiangdong also entered the entrance of the underground palace with the help of Yan Jianhua.

After that, Ouyang Ping and Lu Yunpeng entered the secret passage one after another, and both of them carried guns. Ouyang Ping didn't know what the role of the gun would be underneath, but he always felt that it was better to carry it than not to carry it.

When Lu Yunpeng went down the well, he also brought an emergency light.

The four of them walked along the winding secret passage for about a minute, and a stone gate appeared in front of them, a stone gate about 1.2 meters high and about 60 centimeters wide was horizontal in front of them.

Two flashlights and an emergency light carefully searched for triangular stones on the Stonewall Hill on both sides of the stone gate.

The stone walls are filled with triangular, pentagonal and circular stone blocks of different sizes. Ouyang Ping and Yan Jianhua counted the two meters long stone wall (left and right), there were a total of nine triangular stones.

Ouyang Ping and Yan Jianhua pushed into the wall piece by piece according to Elder Huiben's request, and when Yan Jianhua pushed a triangular stone block on the right side of the stone wall close to the stone gate, suddenly, with a "click", the stone immediately shrank into the stone wall. When the stone shrank to about 10 centimeters, it stopped.

Underneath the triangular dark hole, there is a stone ball with a diameter of about six centimeters.

Yan Jianhua grabbed the stone ball with his right hand, and after determining the direction of rotation with everyone, according to Elder Huiben's prompt, it should be counterclockwise to turn the stone ball. Yan Jianhua took a deep breath, and then turned the stone ball counterclockwise.

The three of them held their breath and looked at Yan Jianhua's hand.

The stone ball turned, and then the stone gate began to move to the right, slowly retracting into the stone wall on the right.