Through Vo Dai Lang, He Immediately Took Medicine

The next day, the three of them walked another morning, ate lunch early, excreted cleanly again, and officially entered the valley.

This is like a folded mountain range caused by the movement of the earth's crust, and a river under the mountain meanders in, directly leading into the cave, and Wu Da carefully observes, and the water flows outward.

It's just that the river is stained with caves, there is no place to put feet, and the boots are not waterproof, so the three have to go in barefoot.

Hu Sanniang asked, "Xianggong, isn't this the water curtain cave that the guide said?"

Wu Da burst out laughing: "Hahahahahaha... Madam, you are so cute, the water curtain cave is a waterfall, from the mountain down, the waterfall blocks the water curtain cave. If you look at it again, it clearly looks like a woman peeing.

As soon as he finished speaking, Zhang Zheng and Hu Sanniang observed it, and then the two looked at each other, stunned.

Hu Sanniang exclaimed: "No wonder I look familiar

..." Zhang Zheng: "..."

The three of them entered the cave, and the afternoon sun just shone in, and the light was still good.

Zhang Zheng took out the compass decently, and then said: "Sure enough, this place can't tell the north from the south.

Wu Da shook his head: "How can there be no distinction between north and south, it is because the stone here has a high iron content and the compass is invalid." It's just after noon, can't you tell the sun apart?

Zhang Zheng was dumbfounded, and Hu Sanniang followed Wu Da closely.

Wu Da secretly sensed the system space, took out a peach, broke it and handed it to Hu Sanniang half, and took out another one and handed it to Zhang Zheng.

Zhang Zheng took it stunned, good guy, bring fruit when doing this kind of thing. Don't you know to bring more food? I see that the food in your bag is still enough to eat for a few days....

Wu Da kept looking at something, and from time to time a few drops of water fell on them on the top of the cave, and Hu Sanniang looked at the folds on the cave and secretly sighed at the ghostly work of nature, which came alive.

Gradually, the cave narrowed, and I don't know what was going on inside.

Wu Da took out three toys, turned on the light, tied it to the heads of the three, Zhang Zheng was surprised what it was, but he didn't ask, when he saw the light, he understood that it must be a lighting tool invented by Wu Zhi, and then took the lead and walked in.

Wu Da lit another torch and handed it to him. Zhang Zheng doesn't know why.

"Take it, if the torch is extinguished, hurry back!"

Zhang Zheng nodded.

It is clearly a cave, and the torches are not extinguished, proving that there is enough oxygen inside.

At the beginning, it was narrow, and only then did he understand people, and he repeated dozens of films, and suddenly he was cheerful.

There was a ticking sound in his ears, and Wu Da looked up to see that it was stalactites dripping.

After an unknown number of years, these stalactites are a rare spectacle in a variety of forms, water and milk.

However, in Wu Da's eyes, they are all like organs.

After walking for about half an hour, there was no trace of natural light in the cave, and Zhang Zheng shouted: "Your Highness, it's here!" Wu

Da and Hu Sanniang stepped forward, and a huge stone gate blocked the path of the three.

Wu Da carefully observed the stone gate and the surrounding structure, and was convinced that there must be an organ here.

It's just that Zhang Zheng can't get the essentials and doesn't know how to open it.

Immediately, Zhang Zheng took out an explosive bag and tried to blow open the stone door.

"Slow down!!"

Wu Da stopped him.

"This cave is so deep, if it collapses, we will be buried here."

Hu Sanniang quickly nodded.

Zhang Zheng was stunned: "Can this still blow up and collapse the mountain?" Wu

Da was afraid that he would be reckless and put away the explosive bag.

He said: "Look closely at the wall, if there is any text or something, tell me!" The

three of them then searched the wall.

Fortunately, the lighting tools are powerful, and the stones under the light are very clear.

After a while, Hu Sanniang shouted: "Xianggong, look at it!"

Wu Da and Zhang Zheng looked over.

I saw a row of characters engraved on the stone wall: X=(sin30°+cos60°)x123456x(tan30°xtan60°+cos45°xcos45°)

Zhang Zheng looked confused and said: "Is this a code word?"

Hu Sanniang was also confused, so she had to look at Wu Da with an inquiring attitude.

Wu Da touched his chin and said excitedly: "It's a real hammer, I should be able to open this door!"

"How to open it?" Hu Sanniang asked.

Wu Da said: "You guys look for the mechanism on the door, but don't move, let me come!"

Then Wu Da took out a pen and paper and calculated.

After a while, the two found a row of good and bad organs. At this time, Wu Da also calculated the result.

According to the number of results, the organs are dialed in turn.

At this time, Zhang Zheng and Hu Sanniang had already put on their armor, and then held a shield to Wu Da to block the sudden dark arrow. A centipede ladder is also laid under the feet. I was afraid that Wu Da would be careless and be beaten into a sieve.

Wu Da sneered, when I was in school, I often heard people say, mathematics, learn addition, subtraction, multiplication and division can be used, you have to do what function calculus, there is no use at all....

No, it's finally used. Wu Da thought that he was bound to write down this story and pass it on, and he thought that he was persuading him to learn.

The two watched Wu Da constantly chant and touch the organ, and their hearts were raised to their throats.

Wu Da fiddled for a while, the stone door was already a little corroded and melted together, and when he dialed, he clearly felt that the mechanism inside was driven, but fortunately, Wu Da was strong enough, and finally it was all dialed.

Suddenly, there was a noise, and the stone door opened from the middle.

The two were pleasantly surprised, and the treasure that had been passed down for hundreds of years was finally opened.

When the door opens, there is a top-down staircase flanked by stone walls. Wu Da sighed: "I'm afraid this project of digging deep mountains is not simple, how good it would be if it could be used to build railways..."

Zhang Zheng admired: "The king of the county really has the whole world in mind, and at this time, he still thinks about building a railway, benefiting the country and the people!"

Hu Sanniang smiled: "He wants to finish repairing it quickly and hurry back to the book."

Zhang Zheng: "..." Zhang Zheng

saw that Wu Da unlocked the stone door and was the first to walk in.

Wu Da glanced at it and said, "Lady, you are behind me, be safe!"

Hu Sanniang nodded in satisfaction.

The Yong Road is narrow, only enough for one person to move forward, Zhang Zheng in front, Wu Da behind, and Wu Sanniang behind Wu Da. The three walked forward silently. Since the torches were not extinguished, it proved that there was still no danger.

And the cool air inside is whizzing, Wu Da understands that there must be vents.

The three of them walked deeper and deeper, and there was only the sound of the footsteps of the three people.

Suddenly, the three heard the sound of "Zniuz twisting".

It seems to be the sound of gears turning.

Wu Da hurriedly reminded: "Be careful with the organ!

Before the two could come to their senses, the steps behind them collapsed step by step.

Zhang Zheng hurriedly walked forward, and Wu Da and Hu Sanniang hurriedly followed.

Who says it's always safe in the back?