The Black Card - Chapter 1217

[Chapter 1215 The perfect mechanism]

Shi Lei must leave as soon as possible.

Eight o’clock in the morning is the time when the Parthenon opens. By then, there will definitely be a large number of tourists coming in, but Shi Lei doesn’t know if the opening of the underground palace’s exit will cause a lot of noise outside.

If there is no movement, of course you get the best of both worlds, but if a big hole suddenly appears on the ground like in the Temple of Hephaestus, you will be in big trouble.

He must open the exit from the underground palace to the ground before tourists enter at eight o’clock, and then hide in the Parthenon. He must wait until the tourists enter and mix with the tourists before he can leave smoothly.

Or, Shi Lei had to wait until the Parthenon closed at eight o’clock in the evening before he could leave.

He cannot open the passage from the underground palace to the Parthenon within these twelve hours, otherwise, the only way left is to be caught.

However, the oxygen here is obviously not enough for Shi Lei to sustain for twelve hours.

And all of this must be based on opening the door from here to the underground palace.

Only by opening the door of the underground palace can he find a way out. And it doesn’t matter even if he can’t find the way out of the underground palace before eight o’clock. With the size of the underground palace, as long as Shi Lei is as careful as possible, he must be able to nourish his energy enough to survive. until after 8 p.m.

He forced himself to calm down.

Shi Lei carefully analyzed the entire discovery in this small room.

The pattern on the wall is the key to opening the door to the underground palace.

Those four potholes must be where the mechanism is. Only by finding a way to clear these four potholes can it be possible to open the stone door, enter the underground palace under the Parthenon, and then find the exit.

However, there were no buttons or anything else inside these four potholes. Shi Lei looked at it several times, but all he could see was that there seemed to be an extremely narrow tunnel underneath the round potholes, connecting the inside of the stone door. …

hole?

Is it necessary to pour liquid into it?

Shi Lei stood up suddenly and thought of the lamp oil.

According to common sense, the lamp oil should have evaporated long ago after a long period of time, and the air here is kept circulating.

Why have these lamp oils been stored in containers under lamps for hundreds of years?

Moreover, when Shi Lei used a flashlight to observe the lamp oil just now, he found that its degree of reflection was quite high. At first, Shi Lei almost thought for a moment that the container under the oil lamp was solid. At first glance, the lamp oil looked like a metallic luster. .

However, he soon saw lamp oil sloshing in the container and determined that it was lamp oil.

But now, the more he thought about Shi Lei, the more he felt something was wrong. Those lamp oils didn’t seem to be oil at all.

He walked to the wall on the right, took out the container from under the oil lamp, and shone it carefully with a flashlight. The more he looked at the liquid, the more it looked like metal. Its viscosity was not as simple as ordinary lamp oil.

Shi Lei stretched out his finger and got a little bit of “lamp oil” on it. This time, he suddenly discovered that it was not lamp oil at all, but mercury.

Shi Lei really had little experience, he had never seen mercury, and it was too dark in the small room. Except for the flashlight in his hand, there was no light at all.

Moreover, there was lamp oil under the oil lamp. This was almost an inconvenient habitual thought. Shi Lei would never have imagined that the container under the oil lamp would actually contain mercury.

He walked to the other wall and took out the container, which also contained mercury.

An idea appeared in Shi Lei’s mind. Injecting the mercury into the holes at the four corners of the front wall might open the door.

No matter what, time was running out and Shi Lei had to give it a try.

He immediately took a container containing mercury and poured the mercury inside into the two holes on the left side of the front wall as evenly as possible.

Then, he quickly poured the mercury from another container into the upper and lower holes on the right side of the front wall.

However, after the mercury was injected, there was still no movement at all in the small room. Shi Lei’s attempt seemed to have failed.

This puzzled Shi Lei. There was mercury under the oil lamp. The mercury obviously couldn’t light up the oil lamp. This seemed to indicate that the mercury must be a means to open the mechanism.

Otherwise, why do we need all this mercury?

Now that mercury has been injected into the pothole, there is still no movement. What went wrong?

While Shi Lei was waiting for the changes in the small room, he suddenly realized that the mercury was obviously not consumable, otherwise it would not have always existed in this container.

He turned around suddenly and shined the flashlight in his hand on the oil lamp on the left. He saw mercury starting to drip from the bottom of the oil lamp.

Shi Lei rushed forward, lifted the container in his hand, and caught the dripping mercury. Then, he quickly installed the container at the bottom of the oil lamp, then quickly walked to the right and restored the container again.

As time passed by, Shi Lei finally heard the familiar clicking sound, which was the sound of the mechanism being opened and starting up.

Shi Lei breathed a sigh of relief, he understood.

There is some kind of special device in the three walls. Only when a liquid with extremely high density such as mercury flows through can the mechanism be triggered. Otherwise, even if liquid is poured into these holes, the mechanism will not be activated. .

Moreover, there is another condition for the activation of the mechanism, that is, all the mercury contained in the container must flow back into the container.

That is to say, people who enter here must put the container back to hold the mercury.

When the mercury returns to the container through all the holes, the mechanism is completely triggered.

At this time, Shi Lei had already seen that the stone door was slowly moving upwards following the pattern on the wall, and a door-shaped hole appeared in front of Shi Lei’s eyes.

When all the movement stopped, Shi Lei returned to the oil lamp, took off a container and looked at it. Sure enough, it was filled with mercury again.

Moreover, with Shi Lei’s now very sensitive sense of weight, he could tell that the weight of the mercury in this container was almost exactly the same as before.

Not daring to stay any longer, Shi Lei quickly passed through the stone gate.

And when he completely passed the stone door, there was another clicking sound behind him, and the stone door slowly descended and returned to its original state.

Shi Lei lowered his head and glanced at his feet. He was stepping on a huge stone slab that was almost exactly the same as the pattern carved on the stone door.

This stone slab is about the same size as the stone gate. It is ten meters long and five or six meters wide. As long as a normal person crosses the stone gate, it is almost impossible to step on other places and can only stand on this stone slab. superior.

Shi Lei couldn’t help but admire the ingenuity of the mechanism here.

First, the mercury is poured into the hole, and then the mercury must completely return to the container before the mechanism can be activated and the stone door can be opened.

And walking through the stone gate will inevitably trigger the mechanism again and cause the stone gate to fall.

Shi Lei simply calculated that at the speed just now, probably after three or four people passed through, the stone gate would be completely closed.

The first person to step onto the stone slab will trigger the mechanism that closes the stone door. Those who follow must pass quickly, otherwise, the stone door will have to be reopened.

2

(End of this chapter)