The playback of the mobile phone was not paused due to their doubts, and time continued to walk, and after a while, the screen suddenly brightened, and what was displayed was the wall opposite the bottom, and it could be seen that this was after the rope was broken.

Mu Zifei speculated: "Grandma, brother, could it be a flying animal that fell on the electric light, because it doesn't weigh much, so grandma doesn't feel anything abnormal, not to mention that it fell on it just when grandma twisted the rope, grandma is not easy to detect the moving rope, and this flying animal, with teeth, bites on the rope and eventually bites the rope!" Then it flew away, and it just flew into the passage, so when we came down, we couldn't find it or see it! ”

Yang Shan thought about it, nodded and said, "It's not that there is no such possibility. ”

The old grandmother shook her head with a smile and said, "Feifei, you are always whimsical, I ......"

Halfway through the words, it stopped abruptly, the grandmother's eyes widened, only to see the mobile phone that had not been played back, a particularly strange thing suddenly appeared in the video screen, due to the light pixels, I couldn't see the specific appearance of the thing, but I could see that thing, about one meter high, two small short legs, feet like birds have scratches, two bat-like big wings on the back, and the head shape was like a praying mantis.

The old grandmother said in disbelief: "Feifei, you are really right, there are really flying animals." ”

After Mu Zifei saw the strange thing in the mobile phone, she shivered, goosebumps all over her body, and she said, "Grandma, where is this still an animal, this is obviously a monster!" Brother, what do you say this is? ”

Yang Shirt was also frightened, and said: "I haven't seen it, it looks like a monster, I don't know if it's a new species, almost all the species we humans have found are on the ground, and only species at a certain depth can be discovered in the ocean. ”

The phone did not have any abnormal images until the end of the recording.

The old woman said, "We have no choice but to move on, little goat, where do you think the baby will be?" ”

Yang Shirt recalled the structure of the symbol, in which several small squares were connected in series, and finally connected to a large square, he said: "Grandma, I think the baby should be at the top of the symbol." ”

Mu Zifei didn't see the symbol diagram on the brick wall, and asked, "Brother, tell me quickly, what are the symbols drawn?" ”

The old woman said, "It's just a string of squares, and the squares are connected by lines, but the top square is relatively large, as if it were ...... There is no line between the big square and the square below? ”

Yang Shirt thought about it and said, "Well, it doesn't seem to be, could it be that there is dust and impurities that just cover that line?" ”

The old woman shook her head and said, "It's not impossible, but it's not necessarily, now we don't want to think about that, I don't know where we are in the symbol now." ”

Yang Shan speculated: "There is only one door in this space, we should be at the bottom of the position, and if we want to get to the top of the place, we need to go through six spaces." ”

The old woman said, "Okay, then let's break into these six spaces, little goat, you give me the electric baton, and I'll open the way." ”

Yang Shirt turned around, walked towards the entrance of the passage, and said, "Grandma, don't rob me anymore, we are already grasshoppers tied to a rope, no matter who opens the road, we can't escape if something happens, you follow me." ”

The old grandmother was very moved, and she held hands with Mu Zifei and followed closely behind Yang Shan.

The three of them cautiously stepped into the passage, the passage is made of stone, Yang shirt touched the stone wall, very slippery, as if it had been polished, his heart couldn't help but sigh that the people who built this passage are extraordinary, he thought, whether it is the ancients he has traveled to see the buildings, or he found in the ground, none of them are made of cutting corners, it can be seen that the ancients built with care, careful, strict requirements, it is because of the intentions and specialization of the ancients, so many architectural works that amaze the world, ingenious workmanship, and look at the current society, Everywhere is cutting corners, rushing the construction period, speed is not quality, and even some houses can not live in a few years before they collapse, it can be said that the real reason for the loss of some technologies is the loss of fine traditions.

Yang Shi sighed, he had already walked out of a distance of more than ten meters, Mu Zifei behind him looked back, it was dark, and now it was done, he couldn't see the head in front of him, and he couldn't see the tail in the back.

A few steps further, Yang Shan raised his head slightly, he found that the top of the passage was no longer bare, but there were some paintings, these paintings had faded, the painting seemed to be a wave current, the water flow has been extending forward, all the way, the waves all the way unrestrained, walking and walking, Yang Shan suddenly heard the sound of water in his ears, faintly from the front, he was surprised, carefully searched the electric light forward, but could not shine the head.

Mu Zifei said in the back: "I seem to hear something, grandma, brother, did you hear it?" ”

The old grandmother nodded and said, "Yes, I heard it, it's really strange, how can there be such a sound in this passage?" Could it be that there will be an empty field further on? ”

Yang Shan was sure that he was not hallucinating, the old grandmother and Mu Zifei both heard it, he thought, could it be that we met an underground river? If the terrain here is low, and there is no soil separation facility under the channel, there will be groundwater seeping out, which is the same thing as digging a well, but it is not uncommon to have water, but it will not flow loudly? He thought again, why did his grandmother say that there might be an empty field ahead, and what does this have to do with the sound of water?

Mu Zifei asked what Yang Shirt wanted to ask, and she asked, "Grandma, how can you suspect that there is an empty field ahead?" This kind of sound, listen, should be the woods ahead. ”

Yang Shan was taken aback and said, "No, how can it be a forest?" I think it should be ......" Yang Shan thought of something, his expression became terrifying, and he said, "No, no! Grandma, Fei Fei, I think, we all hear the sound in our ears, but, if I guess correctly, the sound we hear should be different! ”

The old grandmother and Mu Zifei looked at each other, they gasped at what Yang Shirt said, Mu Zifei said, "No, how can our ears hear different sounds?" ”

The old woman said, "Then let's tell us what we hear in our ears, and I will say first, what I hear is that there seems to be a strange sound in front of me, and the strange sound seems to sound in an open place, and there is a long-term echo." ”

"Huh?" Mu Zifei looked surprised and said, "Grandma, what my brother said is not wrong, what I heard is really different from what you heard!" ”