This secret road is much longer than the previous one, and it has a downward slope.

At first, Zheng songru was still calculating the distance and direction in his mind, but after walking for about half an hour, he found that the passage was not straight, but had a radian, which made the light never shine too far.

The castle is located in the summer, two people are wearing very thin, especially now, is out of the bedroom, just wearing a robe.

With more and more in-depth, the more two people can feel that the whole body is filled with piercing cold, so that when they walk, their bodies are trembling.

Zheng songru is still better. After all, he practices martial arts hard. He practices March 9 in winter and March 15 in summer. Although he is not afraid of the cold, his ability to resist the cold is much better than Xu Mingguang.

Xu Mingguang is a respectable young master. Xiangjiang is very warm all the year round. Where has he suffered from this?

Along the way, Zheng songru could hear his teeth fighting and his body shaking badly.

Seeing this situation, Zheng songru was also secretly worried, and suggested to go back. After all, in his opinion, no secret was as important as his body. At that time, Zheng songru had already realized that the cold was very abnormal, and he was afraid that it was not just the low temperature.

However, Xu Mingguang really seems to be suffering, but he has to insist on it. It seems that he has a lot of backbone, which makes Zheng songru admire him.

Therefore, Zheng songru is to support him, two people walk toward below together.

Because he was cold and worried about the things below, Zheng songru's nerves were always tense and in a state of high tension. At the beginning, he could calculate how far he had gone. Later, he felt that his brain was frozen and he could only walk forward blindly.

At that time, Zheng songru felt in a trance that he and Xu Mingguang seemed to be circling under the valley, as if it was a huge spiral downward passage with no end.

In this deep and empty passage, everything around is very quiet, it can be said that there is a dead silence. The two people can hear each other's breathing and heartbeat, which adds a bit of strangeness to the atmosphere.

Because of the silence, when Zheng songru heard some sounds in his ears, he thought he had hallucination.

Some subtle sounds, like moaning and crying, vaguely came into his ears. In his mind, it felt like a sudden explosion. It seemed that the sound could hurt his brain.

At the same time, in Zheng songru's ear, Xu Mingguang's voice with a little fear: "do you hear anything?"

Only in this way can Zheng songru believe that this voice is not his own illusion, but a real existence.

At the beginning of the journey, they could talk with each other, but at the moment, there was no communication at all. Xu Mingguang was walking forward blindly. At this time, Xu Mingguang spoke to Zheng songru, and his voice was a little hoarse.

Zheng songru did not respond too much, just a faint "um".

Then they closed their mouths again. They didn't talk about it any more. They just moved on.

It's not that they don't want to talk about it, or that they have no strength at all. But at the moment, there is a sense of inexplicable fear in their hearts. Once anyone raises this topic, it's very likely that they will turn around and run away.

As the two continued to move forward, the moaning and weeping sound seemed more and more clear, but it was still indistinct, not very clear.

Then, Zheng songru could feel the wind in the passage.

This is a very unusual situation.

For a sealed underground passage, it is impossible to have a large range of air flow, it is impossible to form wind.

Although the temperature in this passage is very low, which makes them feel extremely cold, there is no cold wind blowing until now, but at the moment, the cold wind is blowing their bare ankles and arms, which makes them feel even colder.

Zheng songru had a deep regret in his heart. He wanted to plan to tell Xu Mingguang to leave. At that moment, he suddenly realized that something was wrong. He suddenly stopped and held Xu Mingguang beside him.

He gave a sharp blow.

Xu Mingguang opened his mouth and gasped for breath. At that moment, he felt a kind of creepy feeling for the rest of his life.

Just in front of them, one step further ahead, there appeared a huge fault, which was like a cliff. It was dark below and couldn't see to the end. Because it was extremely dark in the passage and the flashlight was too weak, the cliff couldn't be seen at all.

If Zheng songru didn't feel this position suddenly strengthened, I'm afraid that two people have stepped on it.

After standing on the edge of the cliff for a long time, Xu Mingguang realized that there was no way to go, but he still didn't give up. He held a flashlight in his hand and called Zheng songru to move along the edge of the cliff to see if he could get around.

But after walking for a long time, it seems that the cliff is very long and has no end at all.

Zheng songru calculated the path of walking and drew the route in his mind. He was surprised to find that the two people were walking in a nearly circular shape.

That is to say, this is not a cliff at all, but a huge black hole.

The black hole is the size of a football field, and the cold wind and the intermittent moaning and crying come from below.

However, the moaning and crying must be caused by the wind passing through the caves that may exist under the black hole.

Xie Mingguang thought that this secret passage was related to the witchcraft in the castle. Unexpectedly, he only saw a huge black hole. After a short period of consternation, he was disappointed.

He thought that there might be some secret under the cave, that is, he tried to go down and have a look.

But because the black hole is too deep, the flashlight is too bright to shine to the end, and it is impossible to rashly go down if you can't figure out how deep the hole is.

In order to find out the depth of the huge hole, Xu Mingguang finally decided to throw a flashlight down.

When the flashlight fell into the black hole, they watched helplessly, waiting for the sound of landing.

But this flashlight, spinning in the air, all the way down, the flashlight light is also rotating, gradually smaller, disappeared.

But in the end, there was no sound of the last fall.