Zhang Shaoyuan and his six team members were advancing along the tilted digging tunnel.

The rolling steam had already condensed in the cold temperature of the planet. Even with the reduction measures, their descent rate was still quite fast. The entrance behind them had turned into a small circular light hole, and they seemed to have become frogs in the well.

But in fact, the process is like riding a slide.

This reminded Zhang Shaoyuan of the 300-meter ice slide that he once sat on in the Ice City Ice and Snow World.

At that time, he still had his wife and children.

Under the holographic mask, Zhang Shaoyuan's mouth inexplicably had a curvature.

Because he remembered his wife's gentle smile and the child's excitement that day.

The thickness of the ice layer is 130 meters. The slightly inclined digging direction makes the length of the cave reach nearly 200 meters, but it is not as good as the ice slide in the ice and snow world.

It's just too dark.

If a pure human enters here, then this gliding process will be a terrifying journey that is extremely dark and terrifying, just like people suddenly fall in their sleep. However, Zhang Shaoyuan and his team are equipped with the most advanced personal night vision equipment of the Xinjing Fleet, plus the lighting equipment they come with. For them, the brightness of this gliding is enough, but the depth is endless, as if sliding towards the mouth of some unpredictable terrifying creature.

And when many people have the same thoughts, they come to the end.

The body suddenly became empty, and the feeling of depression came quickly.

There are large holes under the ice layer, and it will naturally fall when you penetrate the ice layer.

Zhang Shaoyuan and others were prepared and activated the propeller of their space suit as soon as possible to slowly stabilize their body in mid-air.

It was then that they noticed that the underground was not dark, and some kind of strange crystal was born on the frozen upper "ice cap". Only one was there from a long distance, emitting a blue light.

The blue light is actually very weak, and the number of blue crystals is not large, so it can only shine on a small area. Looking down from here, it is still dark. At such a distance, the lighting equipment on their bodies cannot be worn.

The height is at least two hundred meters.

Zhang Shaoyuan made a simple judgment, but they did not drop the height at the first time: "Xie Wenbo, Chen Jia, you go and collect samples of that blue crystal and pay attention to protection. The crystal may have radiation. Others and I disperse the warning, turn on the biological radar and the thermal radar, be careful of anything."

The temperature under the ice layer is even lower. At this moment, the surface temperature of this planet is around minus 31 degrees Celsius, but the temperature here exceeds minus 40 degrees Celsius.

Further down, the temperature seems to get lower.

Zhang Shaoyuan thought that the size of this frozen planet was several times larger than that of the earth.

At this time, he noticed that the signal was slightly worse, both in their internal communication and from external signals.

Two soldiers flew towards the nearest blue crystal under Zhang Shaoyuan's order.

Before they came down, they had made sufficient preparations to bring all kinds of things they could carry, including small material collection and storage devices.

As the only blue crystal that is suspected to be the "rock" of this planet seen so far, of course it is necessary to sample it.

The picture here was also immediately sent back to the frigate where Xu Youyang was. As the ice layer was chiseled here, he began to go deeper, Xu Youyang also mobilized some resources and manpower to keep a close eye on the situation here.

Xu Youyang knocked on the handrail of his captain's seat, looked at the slightly noisy scene, and said, "Captain Zhang, there seems to be a strong magnetic field underground, which has caused interference to our communication. If there is any situation, withdraw it immediately."

"receive."

Zhang Shaoyuan responded immediately.

At this time, the two soldiers had already begun to collect blue crystals.

The blue crystal is not big, probably the size of two adult male fists. It is crystal clear blue all over, like the crystal of the ore, but there are no impurities. Moreover, it seems to grow in the ice layer, and half of it is connected to the ice layer.

"Can this be some kind of fluorite?" A relevant expert raised a question in the frigate bridge.

At present, neither of the radiation indicators on the two soldiers issued an early warning, which means that the radiation of this blue crystal has not reached the level that can cause damage to the human body.

Xie Wenbo and Chen Jia looked at each other, and after a brief exchange, they followed the instructions of the frigate expert group to chisel the blue crystal and a small part of the ice around it.

This process took a lot of time.

Fortunately, the ice layer is 100 meters thick, and I don’t know how many years have existed. It is strong enough. You only need to worry about not damaging the sampling target when cutting.

After the sampling was completed, Xie Wenbo opened the metal backpack behind him and put the sample that had been blocked in the storage box into it.

Zhang Shaoyuan made a gesture to them from afar, signaling them to follow, while he began to descend.

The six-person exploration team began to slowly descend.

The caves under the ice feel endless. Looking left and right, there is no end to darkness.

"The scale here seems to be comparable to the holes under our Arctic glaciers."

Chen Jia, who followed, couldn't help but say something.

In this team, he is the youngest, only twenty-one years old, and it is so novel that he always has to be more vigorous than others, and he talks more.

But unfortunately, no one responded this time.

The caves underground were extremely empty, and they fell vertically. Because of caution, the process still took nearly one and a half minutes to calculate the height and distance of the caves where they are currently located was 237.65 meters.

During the descent, the interference of their signals was becoming more and more serious. When they were about seventy meters away from the "ground", communication with the frigate was almost interrupted.

They stayed at this position for a moment, and after re-contacting with the warship, Zhang Shaoyuan's team decided to continue descending until the ground.

At this time, both their internal communications and their communications with the frigate had been interrupted.

Zhang Shaoyuan ordered the team to turn on the sound device of the combat uniform and prepare for direct communication. At the same time, he re-checked whether his camera was operating well to ensure that the recorded ground data can be reviewed and studied by the fleet after returning.

But at this moment, Chen Jia, who was at the end, suddenly saw a flash of shadows: "There is a situation!"

Everyone immediately entered a state of alert, and the lighting equipment scanned the surroundings.

"The infrared thermal radar did not detect the target."

"The biological detection radar did not detect any targets."

"The dynamic detection radar detects an unknown thing moving around us!"

...

...
Chapter completed!