The tall iron gate was like a wall, and although there was a wide crack in the wall, it was still majestic, it was like a loyal guard, waiting for the borders of another world, and even when the three of them walked out of this crack side by side, an inexplicable pressure hit them, making them a little breathless.

As he walked out of this door, the icy wind stopped all of a sudden.

The sound of the wind that had been whirring in my ears suddenly quieted down.

Everything slowly appeared in front of their eyes, a faint green light, illuminating the world outside the door.

Outside the door, there was an underground valley.

They had all looked up at the faint green light source.

It was a cloud, a cloud that floated in the air and covered the entire valley, a cloud that slowly changed shape, a cloud that could glow green.

It was this cloud that provided the light for the whole valley, and they could not see it inside the door, and until now, even if they saw it with their own eyes, it was still difficult to believe their eyes.

"It's the aurora?" Gao Chao raised his head and said this sentence involuntarily.

It really looks like the aurora, although Gao Chao has never seen the aurora with his own eyes, he has only seen this kind of light on TV, but there is no doubt that the clouds on this underground valley are indeed very similar to the aurora.

Xia Qing looked at the cloud, and could only admit it, and said, "Yes, it is almost the same as the aurora, and even the color is very similar, it is really beautiful." ”

Xia Qing seemed to have forgotten everything.

The fat man swallowed and spitted at the mouth, and said, "This place is too strange, how can there be a valley underground?" And there's an aurora on it? This...... Where the hell is this? ”

Until the fat man said this. Gao Chao and Xia Qing took their eyes off the clouds overhead.

Superb with the help of the faint green light. I looked into the valley in the distance. This valley is not that big, and the position they are in now is the end of one side of this valley, and the end of the other end is also as far as the eye can see, and it is not even half the size of the valley where the ancient city of Yinshan is located.

The valley is flanked by cliffs that are steep but not difficult to climb. It's just that under the faint green light, it looks so unreal, even a little weird.

And the position where they are located, the terrain is still high, if you want to go down to the bottom of the valley, you still need to walk a mountain road.

Gao Chao looked up again, he had been looking for a way up, after all, their purpose was to get out of here, and if they couldn't go up, they wouldn't be able to get back to the ground. There's only a dead end here.

But he watched for a while. But there was not a single road to be found, and the valley was only a dark green cave top, and this was undoubtedly a huge cave.

It seems that their hopes of escaping from here have been completely dashed.

Gao Chao was already thinking like this in his heart, but he didn't want to say it yet.

He looked at Xia Qing in silence, Xia Qing was also observing the valley, but a trace of excitement gradually appeared on her face.

When the fat man saw Gao Chao's bitter face, he knew what Gao Chao was thinking, but he also noticed the change in Xia Qing's face, so he couldn't help but say, "How is it, Professor Xia, what do you see?" ”

Xia Qing nodded confidently and said, "Do you remember that valley?" ”

"Which valley?" The fat man was puzzled.

Xia Qing said: "It's the valley called 'Yu'. ”

She seemed to recall, and said: "'The Tomb of the King of the Western Night, in the Buzhou Mountains, there is a deep valley and a famous valley. 'That's it! ”

Gao Chao let out an "oh" and said, "I remember, Xiao Cui once mentioned to us that place, there is a valley called Yu, which is the location of the Tomb of the King of the Western Night. ”

Xia Qing couldn't help but have a strange look on her face when she heard the word "Xiaocui", but she immediately said excitedly: "Yu is a deep valley, when I first thought about looking for the tomb of the King of the Western Night, I was still thinking about the meaning of this deep valley, because the ancients were very concise, and the difference between one word was also very big, why didn't they use the valley, but the deep valley, I finally understand now." ”

Gao Chao looked at Xia Qing, and suddenly understood, and said, "You mean...... Is this the location of the valley? ”

Xia Qing's face had already appeared with a smile, and said: "This is naturally the location of the valley, although there is not much mention of the situation of the deep valley in the archaeological documents, but I remember that someone once mentioned in the academic report that there are many legends about the tomb of the king of the West Night in the ancient West Night Kingdom, including the saying that 'day and night are always bright, never annihilated', at that time, many people thought that this was just a good wish of the ancient West Night people, but now it seems that 'day and night are always named, never annihilated', isn't it this piece of aurora?" ”

"No......" the fat man exclaimed, "Could it be that we walked around, and in the end the blind cat ran into a dead mouse and found the right door?" That's a ...... What do you mean by that? What is all effortless? ”

Xia Qing said with a smile: "There is nowhere to find the iron shoes, and it takes no effort to get them." ”

"Yes, yes, yes, if I walk for another day or two, I'm afraid my shoes will really wear out." The fat man also forgot about his tiredness, and said with a smile to Xia Qing.

Gao Chao was not so happy, he said calmly: "Don't be too happy first, even if this is the valley where the Tomb of the Western Night King is located, it can only mean that we have just found the right place, as for where the Tomb of the Western Night King is, it is still unknown, not to mention ......"

He frowned and said, "What's more, those Soviets have already discovered this place, their purpose is the same as ours, they are also here to find the Tomb of the Western Night King, if this is the case, then it is estimated that the Tomb of the Western Night King has been ransacked, and even if we find it, it will be in vain." ”

Gao Chao's words are like a basin of cold water, which poured Xia Qing and the fat man on their hearts.

However, Xia Qing just thought about it, and then immediately said: "Old Gao, maybe those Soviets didn't come to the Tomb of the Western Night King. ”

"Why?" Gao Chaodao.

Xia Qing seemed to be very confident, and said, "Do you still remember those trucks?" There are also prison-like underground facilities, and the airport above, and this big iron gate behind us, all of which shows that those Soviets are definitely not here to rob the graves......"

She turned her head to look at the valley in the distance and said, "Maybe there are some other secrets in this underground valley, and it is those secrets that attract the Soviets and make them spend so much energy here to build underground facilities and build such a large plateau airfield, there must be some unknown reasons for this." ”

(To be continued.) )