Could it be that what he just saw in the water was just its reflection? But how could a shadow cover the light spot?

Xie Fei was just wondering when he heard Xiaoya yelling "Ah" again.

Looking again, I saw that the black shadow on the roof of the cave was moving again. The tail really spit out from the mouth, revealing a mouth full of fine teeth, swaying from side to side, and the four meaty claws also began to sway from side to side.

stand up.

The three of them stared at the ceiling of the cave, not daring to take a breath.

Xie Fei softly called Old Wu and asked him to squat down, while he rode on Old Wu's neck. In this way, he was fifty centimeters shorter than the ceiling of the cave, but this was only a mural, with a distance of two and a half meters.

If you can't see clearly, then the long eyes are of no use, but why are they still moving when they are clearly a mural? When Xie Fei was thinking about it, he saw the black shadow curling up its tail and suddenly attacking him, Xie Fei

Not unconsciously, his body dodged backwards, but there was a "bang" and he fell onto the bronze platform.

"Are you okay?" Lao Wu asked with concern.

Xie Fei glanced at Lao Wu and suddenly shouted "I understand". After saying that, Xie Fei quickly ran to the edge of the bronze platform and looked down, but it was still too late when he heard the sound of water and a splash of water.

The black shadow sank to the bottom of the water again.

The black shadow on the top of the cave began to sway like the moonlight in the water. Within a moment, it disappeared without a trace under the gaze of the three people.

I was really stupid. I knew that things on the roof of the cave could be reflected into the water, but I forgot that the reverse was also true. Moreover, the only source of light in the cave was still in the water. So as long as there was something in the water, it would be reflected in the cave.

It cast its shadow on the top of the cave. Unfortunately, I was a step too late and saw a black shadow in the water that was almost the same as the top of the cave. However, I failed to take a closer look at what the black shadow was.

The two walked over angrily, and Old Wu was even more annoyed. He had been looking at Xie Fei for so long. His waist was about to break, but at the most critical moment, it ran away.

"It's so fucking annoying. Do you think this thing looks like a big tortoise? It actually ran away." Old Wu said.

"Well, tortoise? All tortoises have big bellies. Your tortoise has a long head?"

"Mutation! Mutation!" Old Wu scratched his head in embarrassment. "Maybe it's a species left over from prehistory. Prehistoric society even had dinosaurs, let alone a bastard with a pot lid on his head. Maybe this species hasn't been discovered yet.

"

"Then you might as well be said to be a pet left on earth by aliens."

"Well, this is also possible. There are a lot of third-type contacts in the world. You said that aliens can't stay with them properly. Why are they coming to the earth? Why don't you wipe your butt clean after leaving?

Leave this thing here to scare people."

"Hey, you still know about the third kind of contact." Xie Fei couldn't believe that such a professional word could come out of Old Wu's mouth, and his eyes widened as if he had seen an alien.

"Of course, who is our old Wu? One eye is looking at five hundred years, and the other eye is looking at five hundred years behind."

Xie Fei ignored Lao Wu's nonsense and walked straight to the copper coffin. Just as he reached for the copper coins in Jin Chan's mouth, he heard Xiaoya shouting again. Before Xie Fei could react, he saw Xiao Ya.

Ya had already rushed to him, covering his hand with one hand.

"Brother, I beg you, please stop twisting and leave."

Xie Fei finally understood, and thought that Xiaoya was worried about him. He was a blind man lighting a lamp in vain because of his feelings. But he had no intention of twisting the copper coins again. Now there were only two copper chains left on the copper platform.

But I don’t have the courage to twist it again. If another copper chain breaks and falls into the water, I will really have to have contact with the black shadow of the third kind. I came here just to get the copper coins.

It's just coming down, why are you so excited?

Xie Fei tried, but the copper coin seemed to have been there for a long time, but he couldn't get it off alive or dead. He shook it slightly to the left and right, but saw that the copper coin was in pieces.

Xie Fei lowered his head and took a closer look. It was not that the copper coin was broken, but that the domino connected to the copper coin was broken in half. But how could this domino be broken? It had been with him for twenty years and it had not broken at this moment.

broken.

Xie Fei turned his head and stared at Old Wu with blazing eyes. He must have broken the animal in half by himself.

Xie Fei was about to get angry, but he felt something was wrong. The dominoes were not broken at the edges, but neatly broken into two pieces in the middle.

After a little more trying, it actually moved. The domino turned out to be a loose leaf. The domino broke into two pieces along the crack in the middle, and there was a thin wire connecting it in the middle of the crack.

Is this his own domino? Why didn't he discover this secret after carrying it for twenty years? Xie Fei had a look of disbelief on his face. He turned to look at Xiaoya, only to see that Xiaoya also had the same expression as his.

Xie Fei was about to pull out the dominoes when he heard Xiaoya exclaim again, "Don't move."

Xie Fei was stunned on the spot and saw Xiaoya looking at the dominoes in his hand. After a while, he said something that made Xie Fei startled.

"This is a netherworld lock."

Xiaoya has made many friends since she was a child, and even had a very close classmate in high school. Her father was the deputy director of the Xi'an Lock Factory, and was the oldest senior technician in the factory. Under her leadership,

, Xiao Yaer has a great understanding of locks.

China's locks have a long history. According to the research of unearthed cultural relics and historical records, the development of locks has a history of five thousand years. It is almost the same as the history of human development. According to the research of unearthed cultural relics, people began to use "bone screws" and "bone screws" in the Neolithic Age.

"Stone mistake" and these are the most primitive prototypes of Chinese locks.

Simple ancient bronze locks appeared in the Bronze Age. The lock body was equipped with leaf springs, which used the geometric relationship and elastic force between the key and the spring leaf to lock and unlock. By the Spring and Autumn Period, the design of locks began to become complicated, and some were equipped with

It is said that the widespread use of locks originated from Lu Ban's improvements during the Warring States Period.

There are countless famous locks in China, including guqin locks, magpie locks, fish locks, etc. It is recorded in "Zhitian Lu": "If the door lock is compared to a fish, it means the night watch." The fish lock is because its eyes are always open.

If you open it, you can guard the door day and night without closing your eyes. It can be seen that Chinese locks are extensive and profound, but this Netherworld Lock is a different kind. It is a hidden lock.

Generally speaking, ancient locks can be divided into 'internal locks' and 'external locks', also known as open locks and hidden locks. Each type of lock has differences in structure, which determines its different functions. And in terms of type
Chapter completed!