I dig ancient tombs for the country

After hearing Captain Sun's words, the big guys were all silent, only Xiao Li looked aggrieved. I can understand his emotions, but he can't blindly and one-sidedly accuse someone without conclusive evidence.

Captain Sun waved to everyone: "Everyone follow Comrade Jin Tao, remember, don't fall behind."

I tidied up my diving suit, turned on the searchlight on my hat, and was the first to jump into the dark passage.Steps were built along the stone wall in the secret passage, and we walked down the steps step by step.

The entire steps are made of unpolished rough blue bricks coated with white lime.Perhaps because of thousands of years of experience, uniform lime grooves have been formed on the surface of each step.The steps are very steep, but fortunately there are guardrail walls built on both sides, and the guardrail walls are all rough-faced green bricks.When people walk on the steps, the sound of their footsteps is particularly loud in the quiet space. The sound of "dong dong dong" echoes around, like the sound waves reflected from all directions, with a mysterious vibration. Can't help but give you a creepy feeling.

After going down 37 steps, we came to a wide passageway underground.This aisle has been extending forward around the stone wall. On both sides of the aisle are smooth stone walls that do not see the top, and there are wet sand and stones under the feet.The strange thing is that every time we take a step, we will hear the sound of ticking. At first we thought it was the sound of water dripping, but after observation, we found that there is no place for dripping water in this passage, and there is no sound at all except the smooth stone wall. a drop of water.So where exactly are these weird ticking noises coming from?

Everyone felt uneasy and urged each other to leave quickly.I took the lead in the front and slowly moved forward along the stone wall.As we moved forward, those strange ticking sounds became more and more intense, and then they were like galloping horses, making you restless and numb in your ears.

There is a kind of mystery everywhere, which is invisible and daunting.But this aisle seems to be endless. We walked for nearly an hour, but we still haven't got out of this underground passage.

The crowd became restless, and Captain Sun asked everyone to stop temporarily and analyze the terrain before proceeding.

The red hair looked around suspiciously, and whispered to me: "Brother Tao, I think this is a lost road, just like the small forest in front of Agui Village."

I carefully looked at the terrain around me, and I was already thinking about it, so I nodded at Hongmao: "I look like it, why don't we leave a mark on the wall, and then we can draw a conclusion." I said Pulling the red hair, he carved a huge cross on the wall in front of him, and then led everyone to move forward.

After walking for about ten minutes, someone shouted: "Look, isn't that cross on the wall carved by Jin Tao just now? It seems that we turned around and walked back."

Everyone looked at each other for a while, and they all sat on the ground speechless. We walked for nearly an hour and a half, and it seemed that our legs were dry.

Everyone sat quietly on the ground, those strange voices finally stopped temporarily, but once we talked, the annoying ticking sound continued endlessly, making you dumbfounded, it seems that this is a powerful echo wall .

In order to verify what the strange sound was all about, Xiao Yang shouted loudly at the wall: "Hey, who can tell me what this sound is?" The echo made everyone tremble with fear, and they all patted their buttocks and stood up from the ground.

Hongmao walked back and forth a few times with his hands behind his back, and then confidently said to the big guy, "I know what's going on."

Everyone looked at Hongmao strangely, and there was clearly a kind of disdain in their eyes, as if they were saying, we don't know yet, what do you, a young boy, know?

Captain Sun looked at Hongmao with great interest: "Let's hear it."

The red hair pointed to those steps: "The surfaces of these steps have not been polished, they are relatively rough. Due to the long time, grooves of different sizes have been formed, as well as the guardrail walls on both sides and the smooth stone walls on all sides. These all coincide with the sound transmission principle of acoustics, forming multiple uniform sound wave reflection and refraction surfaces invisibly. What's more, the roof of the tomb is covered with glazed tiles. These glazed tiles prevent the sound waves from disappearing loosely. These factors are combined It constitutes a repeated reflection of sound waves, so that once pedestrians walk, the sound of their footsteps will generate a variety of sound waves during the process of outward transmission, and finally transform into a high-frequency echo."

The applause of "Papa Papa" suddenly sounded, and everyone looked at Hongmao in a different way.With a smile in his eyes, Captain Sun kept nodding: "Well, it makes sense, makes sense."

The red hair went on to say: "These sound waves interfered with us, causing us to have a hallucination, which caused us to make mistakes in judgment, and caused us to spin around in circles. From now on, everyone should block their ears and not look at the surrounding environment. I have been walking along the stone wall, and I think I will be able to get out this time."

Someone quickly reconsidered: "Well said, let's act quickly! If we don't leave, I'm afraid the oxygen will be exhausted."

I secretly gave Hongmao a thumbs up. Unexpectedly, Hongmao is not what it used to be. His outstanding performance has been unanimously praised by everyone.

So, everyone blocked their ears one after another, and I was still leading the way.Sure enough, we never heard those strange voices again this time, and walked out of the secret passage smoothly.

When we got out of the secret passage, it suddenly became clear to us that not far from us, there were many villains standing densely, looking like figurines from the Han Dynasty.These funerary figurines are beautiful in shape, majestic and mighty, like soldiers sticking to their posts, guarding the safety of the underground palace here tirelessly.

When the personnel of the archaeological team saw these figurines, they cheered and ran forward, and started a new round of taking pictures.

I walked up to a figurine and looked at it carefully for a while, always feeling a little strange, these figurines are not much different from real people regardless of their size and height, especially the eyes, which look very energetic, just like real people .It seems that the firing technology at that time has reached its peak, and such lifelike figurines are really rare.

Inadvertently, I saw a figurine with a bulging belly, quite big, just like the beer belly we are talking about now, maybe out of curiosity, I raised my hand and patted that figurine’s belly, I heard a crisp sound of "bang", and the figurines standing in front of me broke into countless pieces with a "hula". With the sound, everyone cast amazed eyes on me, a dazzling The light shone directly on my face, and I couldn't open my eyes for a while.