"There is a discovery." Zhao Hui said: "The visibility above has increased greatly, and there seems to be light."

"It seems that we have indeed reached the sea surface and the water pressure has dropped to the lowest level." Professor Qian Siliang also said. As he said, a long thin rope of water flow slowly retracted and finally retracted back to him.

This water flow string is part of the metallurgical space suit. It just extended to the monster's mouth to specifically detect the external water pressure. This is also an advantage of the metallurgical space suit. Any part can be used as a detector.

"Go out now?" Zhao Hui asked excitedly. He finally arrived at the sea surface. It was not easy. The monsters ran for two hours. If they swam by themselves, they would not be exhausted.

"Go out!"

"Okay." Zhao Hui nodded and said to Xiaoma: "Xiaoma, let this monster open its mouth."

Xiao Ma didn't say anything. After a moment, the monster's mouth slowly opened. Suddenly, a huge sea water poured in. Zhao Hui and Professor Qian Siliang firmly grasped the monster's flesh and blood, and barely was not washed away.

Finally, the monster's mouth was filled with sea water. Because the monster did not swallow it, the sea water gradually calmed down.

"Walk."

The two of them jumped, used their hands and feet together, quickly stirring the sea water, and swam out of the monster's big mouth.

"Xiao Ma, can you keep it here forever? Maybe you need to use it?" Zhao Hui said to Xiao Ma, just in case.

"Gugu." A golden light flashed in Xiaoma's eyes and penetrated into the monster's mind. The monster began to wander around, but did not leave.

"Tsk tsk tsk tsk, it's true that this place is much brighter than the deep sea, at least you can see the light."

Professor Qian Siliang looked at the light above his head, said, and then he swam upwards, "Is this ice?"

After a moment, his hand touched the object emitting light and found it to be ice, hard ice.

"It's indeed ice." Zhao Hui also said.

"It seems that this planet is very cold, or it should be the two poles of the planet. The sea area where we are located has frozen, covering a thick layer of ice." Professor Qian Siliang frowned slightly and said helplessly.

"Then how do we go out and break this layer of ice?"

Zhao Hui thought for a while and said, and a spike popped up in his right hand instantly, piercing the liquid gold space suit covering his right hand. Then, with a force, the spike penetrated into the ice, stirring it vigorously, and drew a circle, and a large piece of cylindrical ice was cut off.

Qian Siliang looked at this scene and did not stop it, but his eyebrows kept frowning: "Boy Zhao Hui, do you know how thick this layer of ice is?"

"I don't know, it probably isn't too thick!" Zhao Hui shook his head.

"You try it first! But I always feel that the ice layer is unusual."

Professor Qian Siliang said in a deep voice: "A gentle planet like Immigration Star, the average thickness of the Antarctic ice layer is 1,700 meters, and the thickest part is as high as 4,000 meters. Other alien planets are unpredictable. If the ice layer here is really so thick, or thicker, when will we chisel it open?"

Zhao Hui's whole body stiffened and realized the seriousness of the problem. The liquid gold spacesuit could not last for twenty-four hours. There was not much time left for him and the two of them, so how could he have time to slowly chisel ice?

"What should I do?" Zhao Hui smiled bitterly in his heart, and walked out of the deep sea. He thought he could reach the land smoothly, but who would have thought that he would be blocked by the ice again.

"Pray. I can only pray that the ice layer is not thick. Let's do it! Dig for half an hour first. If we can't dig it up, we can only find another way out." Professor Qian Siliang was also helpless. "It's a pity that there was no sonar, otherwise the thickness of the ice layer could be detected."

Zhao Hui did not speak, and continued to cut the ice. Time passed by minute by minute, piece of ice was cut and fell into the sea water. The ice holes chiseled became deeper and deeper.

Half an hour later, Zhao Hui dug open an ice cave that was sixty or seventy meters long, and the speed was extremely fast. However, the distance between completely drilling through the ice layer was still far away.

Or he didn't know when he could drill through the ice layer, maybe only two or three meters left, maybe

Zhao Hui's heart gradually sank, and his patience gradually faded away.

"Half an hour has arrived. Boy Zhao Hui, come down! We can't waste time on this."

During the past half an hour, Zhao Hui was chiseling ice, and Professor Qian Siliang was not idle either. He had been wandering around, hoping to find a passage to go out. However, except for the thick ice, it was thick ice. Not to mention the passage, there was not even a slight crack.

He could only return in disappointment.

Zhao Hui slid down from the tunnel and fell into the cold sea water, looking disappointed, "I'm really unwilling to give up!"

"This is also a matter of no choice. You are chiseling ice now, which is like a blind man touching an elephant, and it is not very useful." Professor Qian Siliang shook his head and said, "Let's go! Go further and look for it, maybe you can find the ventricular hole."

"It can be seen from the fact that oxygen dissolved in the ocean that there must be a place leading to the outside world, and this planet contains oxygen."

The two were in a desperate situation, and Professor Qian Siliang's rich knowledge and experience fully reflected "As long as we move along the places where the oxygen concentration is getting higher and higher, we will definitely be able to find the connection between here and the outside world."

Seeing Zhao Hui's face full of disappointment, Professor Qian Siliang couldn't help but comfort him: "Haha! Don't give up hope."

"I understand." Zhao Hui barely cheered up, looked at the chiseled ice cave, shook his head helplessly, and sat on the monster's back with Professor Qian Siliang, and then ordered the monster to swim forward.

At the beginning, the oxygen concentration in the sea water was almost the same, and the monster was moving aimlessly, but after more than an hour of forwarding, the oxygen concentration became higher and higher.

"Haha! This is the right direction. Keep swimming and accelerate forward." Professor Qian Siliang continued to detect the oxygen concentration in the seawater through the metallurgical space suit. Finally, he found that the oxygen concentration in this sea area has increased significantly, and there is one direction, with a higher oxygen content.

Under his guidance, the monster swam in that direction.

Finally, after nearly two hours of progress, a huge light was cast in front of me. This light was not very bright, but it seemed extremely conspicuous in this dim sea water.

"Look. It's there."

Professor Qian Siliang kept urging, and Zhao Hui was also excited. The light ahead was like a dazzling Milky Way in the dark starry sky, quietly standing in front, guiding the road.

Twenty minutes later, the monster finally arrived under the light.

"Haha! Crack. This is a huge crack."

The light transmits from a super-large crack, which is one or two kilometers wide and is unknown how many kilometers long, and it extends crookedly and winds to infinity.

And through the huge crack, you can only see the crystal clear ice, flashing with light, but you cannot see the end of the crack.

Unfathomable.

This is a super big, super deep crack.

"This huge crack is where the ocean and land exchange gases." Professor Qian Siliang shouted excitedly.
Chapter completed!