Chapter 1601

Looking in the direction of Longfei's fingers, a simple and broken Temple appeared in front of them.

"How can there be a temple here?" Xu Shaotang was slightly stunned, and then realized: "it's a mirage!"

Mirage usually occurs in areas with heavy alternation of cold and hot air. Desert, Gobi desert, ocean and other areas are the areas with frequent mirage. This is the first time in Xilin.

"Yes Long Fei nodded and said, "there is a mirage here, which indicates that there is a big difference in the temperature of the cold and hot air here. The hole we are looking for should be in that direction!"

Xu Shaotang nodded slightly, Long Fei's analysis is very reasonable.

With this mirage phenomenon, it is equivalent to pointing out the direction to them. If you look in that direction, you should be able to find the air outlet.

"Mirage is an illusion, but what it shows is real!" Xu Shaotang said with a smile: "that is to say, there should be a temple around this mountain range!"

"It's not a temple, it should be the site of the ancient Xiangxiong dynasty!" Long Fei took out the map and spread it in his hand, saying: "there are two sites nearby, one is the site of the ancient Xiangxiong Dynasty, the other is the site of the Guge Dynasty. The site of the Guge Dynasty should be more dilapidated."

"Er..."

Xu Shaotang looked at Long Fei speechless and said, "how do you know?"

"I have observed the ancient Xiangxiong site before. I have a little impression!" Long Fei said lightly.

Well, it seems that I think too much! Xu Shaotang shrugged helplessly and quickly swept to the direction of the mirage.

Among the scattered peaks, several figures are flashing rapidly. Every time they walk out of a certain distance, they will use the telescope to observe carefully.

Soon, they feel more heat around them, which means they should be in the right direction.

Half an hour later, they finally saw the hole not far away through the telescope.

The hole is open, and there is no shelter around it. The sunlight shines on the hole, making the hole and the surrounding environment just right. This is why it is difficult for them to find the hole from this angle.

"Go and have a look!"

As soon as Xu Shaotang's voice fell, he immediately swept to the direction of the entrance.

The so-called "dead horse running on the mountain". When they looked through the telescope, they felt that the place was not far away from them. But when they really took action, they found that the distance between the cave entrance and their home was much farther than they thought.

A few minutes later, they finally came to the edge of the cave.

As soon as we get close to the entrance of the cave, we can feel the heat wave coming. The convection of cold and hot air makes the strong wind rampant around the entrance. There is no dust near the entrance of the cave that can be lifted by the strong wind. The surrounding stones are constantly eroded by the strong wind, showing the shape of thousands of postures. Vaguely, it seems that we can hear a burst of crying and howling And you can hear bursts of laughter.

"It must be here!"

Xu Shaotang breathed out a long breath, bowed his body, and said to the two people around him: "first supplement your strength, and then go down to investigate!"

Starting from parachute landing, they didn't even drink a mouthful of water, let alone eat. They tracked down all the way here, and their physical strength consumption was also extremely huge. Now it's hard to find this hole, and they can finally feel at ease to replenish their physical strength.

They nodded slightly and walked a distance to the bottom of the cave to avoid being cut on their faces by the raging wind.

"It seems that the temperature here is a little higher than that analyzed by the data analysis team." While biting the dried meat in his hand, Long Fei frowned and said, "what I'm most worried about now is the temperature inside the mountain. If the temperature inside is too high, we may directly become roast pigs."

It's hard to imagine how high the temperature inside the mountain is.

Xu Shaotang thought about it and shook his head: "the temperature inside should not be too high. At most, it is a little bit higher than the temperature of the air outlet."

"Why?" Long Fei asked.

"There must be a large cavity in the mountain. If the cavity is formed naturally and there is such hot gas, then unless there is volcano or lava, in this case, we will be roasted into suckling pigs!" Xu Shaotang poured some saliva into his mouth and continued to analyze: "however, the location of the air outlet obviously has no sign of volcanic eruption, and there is no unpleasant smell produced by lava. Therefore, this chamber is not formed naturally, but is built artificially. Since it is built artificially, it must at least ensure that people can survive in it."

"Are you so sure that the chamber inside the mountain was built?"

"Nine times out of ten! I'm not quite sure! " Xu Shaotang said with a smile.

Now, he didn't really enter the mountain, and he didn't dare to talk too much. When listening to the data analysis team saying that there was a huge cavity, he always thought that the cavity was built by man. Under natural conditions, it's not impossible to form such a cavity, but the probability is too small."It could be a cave." Mu Tiance said lightly.

"Cave?" Xu Shaotang thought about it and nodded: "it's possible, but if it's a cave, we won't become roast suckling pigs."

The altitude here is high, and the ice and snow cover all the year round. It is not impossible to produce underground caves, but such caves do not pose any threat to them.

While discussing the situation inside the mountain, several people quickly replenished their physical strength. Soon, they finished eating and drinking. Although it was not delicious, it could keep them energetic.

Xu Shaotang clapped his hands and stood up, lifted a stone from the ground, then dropped the stone from the air outlet, and put his ear on the air outlet to listen carefully.

"It seems to be a little deep in here!"

More than ten seconds later, Xu Shaotang did not hear the sound of the stone hitting the ground, which shows that the air outlet is extremely deep from the ground, even beyond the range of sound transmission.

After thinking for a while, Xu Shaotang said: "first, connect the ropes on our bodies. I'll go down and have a look. Don't come down first! If the following situation is not right, I will ask you to pull me up. "

"Good!" Long Fei nodded slightly and took out all the ropes in his backpack.

All the ropes in the three men's backpack were connected, which was only three or four hundred meters long. After fixing the rope on the stone at the entrance of the cave, Xu Shaotang immediately slid down the rope from the cave.