Suddenly, the ground under Lin Xuan's feet separated left and right, and the two of them fell straight down.

It took about half a minute before the two of them slammed to the ground.

The place where they fell was a cave ten meters long, seven meters wide, and five meters high, and the walls of the cave were like frozen jade, emitting a faint cyan light.

"Follow me." Tian Yunong screamed in a low voice, his voice excited and full of hope.

They went to the right, along a crevice in the mountain.

"Right in front, right in front......" Tian Yunong couldn't stop whispering excitedly, as if he had broken into the robbers' cave treasure trove.

Suddenly, the gap in front of them was wide, and the two walked into a cave five meters square and three meters high. However, the cave is dead, and there is no way ahead.

Tian Yunong was stunned, looked around, and his face was full of confusion. Next, he took out a high-altitude reinforced compass and placed it flat on the ground.

Normally, the compass will discern the direction, but this time, the compass is motionless and has lost its effect.

"Right here, if we find due north, we can find another pathway." Tian Yunong said with a frown.

According to his own understanding, Lin Xuan walked to the front right and stood in front of the stone wall. In the fall, he still held a firm sense of direction, convinced that this was due north. He has a wealth of experience in the wilderness, and when he was in Xiongba Village, he often traveled without any guide equipment, and he could find the right direction accurately every time, and he never got lost in the wild.

"Hey, is it due north?" Tian Yunong, who was anxious, was already in a mess.

"Yes." Lin Xuan replied.

Tian Yunong stepped over in three steps and two steps, raised his arms, and pressed his palms against the uneven stone wall.

They could all see that the stone wall was a natural formation, and there could be no hidden portal.

Lin Xuan's heart slowly sank, after all, they had been falling for so long, it was impossible to return from the original way. According to rough estimates, they had descended at least about five hundred meters, and Tian Meng, who was left behind at the entrance of the cave, was really powerless. If they can't find their way, the two of them will really be trapped in the area.

"Senior Tian, have you been here? If there is a portal in front, what is behind the door? Lin Xuan asked.

Tian Yunong settled down and gave a plausible answer: "Behind the door, it's still the door." ”

Lin Xuan leaned one palm against the wall and walked around the cave, convinced that there was no way to either side. This cave is like a fist-shaped bubble in the depths of the mountain, isolated from the world.

"Why don't we go back and see if we can find the door outside?" Lin Xuan mentions.

Tian Yunong shook his head meaninglessly and muttered to himself: "The door is here, the door is obviously here, I will not be mistaken, this is indeed the gateway to the axis of the earth." ”

Lin Xuan didn't care about Tian Yunong, he retreated alone, and arrived at the first cave where he fell.

In the same way, he had tried the stone walls around him, and they were all solid mountain walls, not even a finger-thick gap, let alone a portal for escape.

He looked up, deep and far away, and he didn't know where the exit was.

"It's terrible." He couldn't help but sigh.

The changes in the Everest camp have not been completely dealt with, and he suddenly fell into such a desperate situation, which is simply a double blow from God.

"I'm afraid it's really over this time." In order to preserve his body, he sat down against the corner of the stone wall, closed his eyes and meditated, combing his thoughts.

I don't know how long it took, in a blur, he knew that Tian Yunong had been in and out of the two caves several times, suddenly yelling, suddenly whispering, and constantly venting his anger.

Later, Lin Xuan gradually fell asleep. He needed sleep, because after climbing Mount Everest, he barely slept a single sleep, and was just struggling with willpower.

In the haze, he heard someone playing a song. Listen carefully, it turned out to be a famous "patriotic anthem".

It was the national anthem of the Russian Federation from 1991 to 2000. Glinka's original unwritten piano melody was chosen as the national anthem by Russian President Boris Yeltsin in the early 1990s with the support of the Russian Orthodox Church, and remained lyrics-free for several years. Victor? Radugin wrote the lyrics for the national anthem in 1999, which led to the complete national anthem.

"How is it possible that the national anthem of the Russian Federation is played here?" Lin Xuan was a little strange.

When he opened his eyes, Tian Yunong was sleeping deeply in the other corner of the cave, snoring lightly from time to time, and seemed to be asleep.

Lin Xuan wiped his face and slowly looked around, his mood getting heavier and heavier.

Waiting, it is definitely not a way, because now even if Tian Meng goes to Samantha for help, the people above are powerless to rescue. What's more, Tian Meng couldn't even get out of that ice cap, so how could he inform Samantha? No, what else can you do in this environment like sitting in a well and watching the sky?

He casually hummed a couple of words about the music he had just heard, of course, subconsciously, he didn't think that his ears actually heard the music, but that it was just something that popped up in his head.

After Putin took office, the original lyrics of the song were no longer used, but in December 2000, the presidential office officially signed a bill on the national flag, national emblem, and national anthem, and the national anthem of the former Soviet Union was officially established as the new national anthem after the lyrics were modified. That is, even if someone plays a song of the Russian Federation, it can only be a new anthem.

On the territory of the current Russia, it is no longer allowed to publicly play the anthem with the old lyrics.

Lin Xuan walked along the gap to another cave, and just after he stepped into the gap, the sound of the national anthem in his ears suddenly became loud and clear, startling him a lot.

He was stunned for a few seconds, and immediately judged that the song had come from the small cave, and after the gathering and rectification of the cracks, it had become so amazing.

"Singing...... In that cave, that is, the cave can lead to the outside......" he thought, and he made a quick move into the cave.

The cave was empty, and the sound of the music was slightly diminished, but the sound of the instruments was clearly recognizable to the human ear.

Lin Xuan was overjoyed, walked along the edge of the cave, and finally determined that the sound of music came from due north, which was also in line with Tian Yunong's words that "due north is the gateway".

He drew his vengeful blade and tried to slash the rock, but the rock was much harder than the ice, and even the sword had no effect.

"Alas, even if we are only separated by a foot-thick stone wall, we can't walk through, and we are still trapped." Lin Xuan could only give up, facing the stone wall, thinking hard.

"Soldiers, you are great Russian fighters, always ready to contribute to the national cause of Russia. At the critical moment, even if you sacrifice your life and break your bones, you will not hesitate to do so. Soldiers, as your commander, I am really proud of you, and when we leave here, I will apply for a state medal for each of you, you are good sons of the Russian people, you are the pride of Russia......"

The voice of a speech in Russian came, sonorous and powerful, and the tone was impassioned.

Lin Xuan was completely stunned, because it was indeed a human voice, and from the sound analysis, it was the voice of a Russian man in his sixties, and the other party was likely to be a soldier, because he said the words "As your commander".

"Who's talking? Who are they? Lin Xuan couldn't help but face the pale cyan stone wall and muttered to himself.

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