With the increase of personnel, the iron cover finally couldn't hold on and was completely lifted up.

The group of people in black who joined behind didn't stop there. After putting down the iron cover, they quickly dispersed in all directions. In the blink of an eye, this group of people completely disappeared in the surrounding area.

As if this group of people never showed up from the beginning to the end, the efficiency is simply astonishing.

Huh!

And as the iron cover was opened, a huge iron pipe-like thing appeared in the center of the pit, and gusts of cool wind were blown up through the iron pipe, making people feel a bit chilly for an instant.

Chi Meng looked inside the railway, and the inside of the iron pipe was completely pitch black, and he couldn't see to the end.

With a movement of her hand, she used a burst of energy to roll up a stone on the ground, and then threw it down at the entrance of the cave.

The depth of water can be probed with stones, and the depth of caves can also be probed naturally. The principle is to use the sound produced by the falling stones to distinguish the depth.

I don't know how long it took, Chi Meng even got a little impatient waiting, but there was still no sound coming from the iron pipe.

This makes people feel very strange. Could it be that there is still a beast living here, and it can eat the stone with its mouth wide open?

Otherwise, how could there be no sound?

Even if there is some kind of curve in the deepest part of the iron pipeline, there should be a very subtle collision sound.

Yes, this kind of sound may be extremely small, and it may be completely inaudible to the human ear, but what Chi Meng uses is not the physical ear, but the spiritual sense.

Under her spiritual consciousness, she can hear all the sounds below clearly.

This makes people feel extremely strange. What's going on here?

Chi Meng couldn't help but frowned deeply, and was a little dumbfounded for a while...

Seeing the expression on Chi Meng's face, Shangguan Qingyan also realized that things might not be as simple as imagined, so she hurriedly stepped forward and asked, "What's wrong? From your appearance, something seems wrong. Could it be that we have found the wrong place?"

Chi Meng thought about it again, shook his head, and looked at Shangguan Qingyan: "It's very strange, it seems that the bottom is not only fifty meters deep."

"What do you mean, more than fifty meters?"

"Just now, you also saw that I threw a big stone down. It stands to reason that after the stone goes down, there should be echoes, but unfortunately, I didn't hear any memories."

Shangguan Qingyan heard the words, and immediately frowned: "Based on your behavior, it is basically impossible for you to mishear, and you should be able to hear very deeply."

Although I don't know Chi Meng's specific cultivation base, but seeing her come and go without a trace just now, and her subordinates can easily kill her own guards, her cultivation base should be very powerful.

For such a person, if he wants to hear the sound of a stone reaching the ground, it has to be said that it is very easy.

However, she didn't hear it. Then, Shangguan Qingyan basically agrees with Chi Meng's thoughts, that is, there is an abyss underneath, and there is no bottom.

"Father, is the information you heard back then really wrong?" Shangguan looked at Shangguan Qinghai lightly.

Shangguan Qinghai frowned slightly, a little embarrassed: "This... I didn't know this for a while."

The news was originally heard, so it is doubtful whether there is any missing in this process, and whether what people are talking about is related to blood is also a doubt.

This in itself is half-heard, half-guessed, and it's not uncommon if something goes wrong.

"Maybe, I really got it wrong."

Although Shangguan Qinghai immediately admitted that he might be wrong, Chi Meng did not immediately deny this possibility. JrNovels.com