Xiwen finally nodded: "Then be careful!"

So Lu Yuan secured the rope to his waist, tested its strength, put on his windproof mask, and slowly walked along the rope toward the ice and snow layer.

Finally, they reached the top of the ice hole. To prevent himself from accidentally falling in, Lu Yuan had no choice but to break the thin layer of ice and snow under his feet.

Then, Lu Yuan took the dagger he had brought with him and slowly descended the glacier. The further he went, the lower the temperature felt inside. He glanced at the color of the glacier nearby and noticed that the ice was no longer the white glacier it had been before, but a pale blue color. Moreover, the color deepened as he went down, and the temperature dropped accordingly.

Lu Yuan had seen it on a science program. He knew that glaciers of this color were formed tens of thousands of years ago. The water inside was frozen tens of thousands of years ago or even longer ago. Over tens of thousands of years, the color of freshwater on Earth gradually returned to a colorless state. The freshwater sealed in these glaciers was the color of freshwater that existed on Earth tens of thousands of years ago.

So Lu Yuan reached out and pried off a piece of the glacier, placing it in his dimensional space. These were all good things; he didn't know when he would see them again.

Finally, Lu Yuan felt his feet stop, and he was finally close to the bottom of the pit. Lu Yuan quickly took off his rope and then took out his flashlight from his pocket.

Looking around, Lu Yuan saw a figure struggling to wave at the light.

"Help me!"