"There are discoveries." Zhao Hui said: "The visibility above has greatly increased, and there seems to be light. ”

"It looks like we've reached the surface of the sea, and the water pressure has dropped to its lowest." Professor Qian Siliang also said, and as he spoke, he saw a long stream of water slowly retracted, and finally retracted back to him.

This water flow rope is a part of the metallurgical spacesuit, which just extended to the outside of the monster's mouth, specifically to detect the external water pressure, which is also an advantage of the metallurgical spacesuit, any part of it, can be used as a detector.

"Get out now?" Zhao Hui asked a little excitedly, finally arrived at the sea, it was not easy, the monsters had been running for two hours, if they swam by themselves, they would not be tired to death.

"Get out!"

"Okay." Zhao Hui nodded and said to the pony, "Pony, let this monster open its mouth." ”

The pony didn't speak, and after a while, the monster's mouth slowly opened, and suddenly, a huge stream of sea water poured in, and Zhao Hui and Professor Qian Siliang firmly grasped the monster's flesh and blood, so they barely got washed away.

Eventually, the monster's mouth was filled with seawater, and the sea gradually calmed down because the monster didn't swallow it.

"Let's go."

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

"Pony, can you keep it here, maybe you'll need it?" Zhao Hui said to the pony, this is also just in case.

"Goo." The pony's eyes gleamed with gold, and the monster began to wander around, but it didn't leave.

"Tut-tut, it's really much brighter here than the deep sea, at least you can see the light."

Professor Qian Siliang looked at the bright light above his head, and said a word, and then he went upstream, "This is ice?" ”

After a few moments, his hand touched the object that emitted a bright light, and it turned out to be an ice cube, a hard ice cube.

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

"It seems that this planet is very cold, or this should be the poles of the planet, and the sea we are in is frozen and covered with a thick layer of ice." Professor Qian Siliang frowned slightly, and said helplessly.

"So how are we going to get out and break through this ice?"

Zhao Hui thought for a while and said, the spike in his right hand instantly popped out, piercing the liquid gold spacesuit covering his right hand, and then with a force, the "click" spike sank into the ice, stirred hard, drew a circle, and a large piece of cylindrical ice was cut.

Qian Siliang looked at this scene and didn't stop it, but the corners of his eyebrows kept frowning: "Zhao Hui boy, do you know how thick this layer of ice is?" ”

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

"Try it first! But I always felt that this ice was unusual. ”

Professor Qian Siliang said in a deep voice: "On a gentle planet like the Migration Star, the average thickness of the Antarctic ice is 1,700 meters, and the thickest part is as high as 4,000 meters, and other alien planets are unpredictable. ”

Zhao Hui stiffened, and also realized the seriousness of the problem, the liquid gold spacesuit could not last for twenty-four hours, and there was not much time left for the two of them, how could there be time to slowly chisel the ice?

"What then?" Zhao Hui smiled bitterly in his heart, out of the deep sea, he thought that he could reach the land smoothly, but who would have thought that he was blocked by the ice again.

"Pray. One can only pray that the ice is not thick. So be it! Dig for half an hour, and if we can't dig up, we'll have to find another way. Professor Qian Siliang was also very helpless, "It's a pity that there is no sonar, otherwise the thickness of the ice can be detected." ”

Zhao Hui didn't speak, and continued to cut the ice, and as time passed, pieces of ice were cut off and fell into the sea, and the ice cave that was chiseled became deeper and deeper

Half an hour passed, Zhao Hui chiseled an ice cave sixty or seventy meters long, the speed is not fast, however, the distance to completely chisel through the ice is still far away.

Or rather, he doesn't know when he will be able to chisel through the ice, maybe only two or three meters left, maybe

Zhao Hui's heart gradually sank, and his patience gradually wore out.

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

In the past half an hour, Zhao Hui was digging ice, and Professor Qian Siliang was not idle, he had been wandering around, hoping to find a passage out, but in addition to thick ice, it was thick ice, not to mention a passage, and there was not even a slight crack.

He could only return disappointed.

Zhao Hui slipped down from the hole and fell into the icy water, with a disappointed face, "I'm really unwilling!" ”

"There is no way to do this, you are digging ice now, it is tantamount to a blind man touching an elephant, it is not very useful." Professor Qian Siliang shook his head and said, "Let's go!" If you look further afield, you might be able to find a blowhole. ”

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

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

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

"Got it." Zhao Hui barely cheered up, glanced at the ice cave that had been chiseled, shook his head helplessly, and together with Professor Qian Siliang, sat on the back of the monster, and then ordered the monster to swim forward.

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

"Haha! That's the right direction, keep swimming, and accelerate forward. Professor Qian Siliang continuously measured the oxygen concentration in the seawater through the metallurgical spacesuit, and finally found that the oxygen concentration in this sea area has increased significantly, and there is a direction, the oxygen content is higher.

Under his guidance, the monster swam in that direction.

Finally, after nearly two hours of advancement, a huge light was projected in front of him, which was not very bright, but it was very conspicuous in the dim water.

"Look. There it is. ”

Professor Qian Siliang kept urging, Zhao Hui was also excited, the light in front was like a bright galaxy in the dark starry sky, quietly lying in front of him, guiding the way.

After twenty minutes, the monster finally reached the bottom of the light.

"Haha! Fissure. It's a huge crack. ”

The light came from a super-large fissure, a kilometer or two wide and an unknown number of kilometers long, crooked and meandering to infinity.

And through the huge crack, you can only see the crystal solid ice, shining with light, but you can't see the end of the crack.

Have no bottom.

It's a super big, super deep crack.

"This huge crack is where the sea and the land exchange gases." Professor Qian Siliang roared excitedly.

"Let's go up now?" Zhao Hui couldn't hide the excitement in his heart, swallowed his saliva and said, he finally swam from the deep sea to the surface of the sea, and it took so long to appear here, the excitement in his heart can be imagined.