With a shudder, the hexagons beneath the two of them began to sink, carrying them across a thick floor that was about kilometers thick, and the light under their feet became more pleasant and comfortable, as if there was a gentle sun shining in all directions below.

"I wondered, could it be a fusion reactor?" Zheng Kai was a little excited, and his gaze began to bring light around the sinking tunnel, "The ancients were able to create such a huge thing, it must have a similar energy source, maybe we can control it, or find a way to control it." ”

"I think you're overly optimistic in this regard." Bing Shijue smiled, but he was still looking forward to it, until it sank to the interface, a slightly dazzling light entered his eyes in an instant, allowing him to see clearly what the bottom layer was, and Zheng Kai closed his eyes directly.

It is a glowing, rotating sphere, and the pupils of the photoreceptor cells are roughly visible as a regular octahedron as the pupils of the photoreceptors are rapidly narrowed and adjusted according to the ice sense.

The massive octahedron was suspended in the distant air, and below it were connected by four brilliant pipes, each leading to the distance as far as Bing Shijue's line of sight could see. Presumably with a similar cube levitation. However, these cubes obviously didn't have much energy, and they looked a little dim in Bing Shijue's eyes.

"Bing Shijue, what do you see?" Tears flowed from Zheng Kai's eyes, and the bright light stimulated him, making him unable to open his eyes at all, "What is here?" ”

"There is an octahedron, suspended in the air." Bing Shijue looked at Zheng Kai in some surprise, and he understood randomly. He can now look directly at the sun, and can even adjust the specific conditions and structure of the cells in his eyeball, which can quickly adapt to this kind of strong light, but Zheng Kai's eye structure is still the original appearance.

"Help me open the filter in my suit, I can't control it right now." Zheng Kai closed his eyes vigorously, but tears still kept flowing out, "No matter what it is, this must be an energy room or something." ”

"I think so." Bing Shijue put his arm around Zheng Kai's neck and found the button to adjust the filter, and during the press, several layers of filters fell in front of his eyes, making Zheng Kai's breathing much softer, "I am a complete blind spot in this regard, I have to rely on you." ”

"I'm not an energy major either." Zheng Kai's eyelids were still trembling, but with the help of several layers of filters, he could already see a regular hexahedron with some color distortion, "Is it that kind of spar?" ”

"Probably." Bing Shijue nodded, and narrowed his eyes, "It's a little distance from us." ”

"That's the energy of a building." Zheng Kai subconsciously rubbed the protective shield on his head, "No matter what, we have gained." ”

"And I look at it, the octahedron in the middle is connected to the four cubes around it, according to conventional logic, it is speculated that the center is an energy reserve, and then the four corners correspond to Xuanwu's feet." In between conversations, the two continued to sink, apparently not yet reaching the surface.

"Next time, I may have to trouble you, I will bring some instruments to measure the air in, and if it goes well, we can allocate some of our research energy here." Zheng Kai's tone was also a lot more relaxed, "Then you can slowly send researchers to live here." After the nuclear fusion above is basically successful, you can also start to evacuate the surrounding people, clean up the city, relocate people, and start to float the Xuanwu. ”

"I'm going to have to work as a coolie a few more times." Bing Shijue smiled.

"But it sounds like you're happy, you've found Xuanwu, and humans have a chance to escape." Zheng Kai's mood is not bad.

"I have a question, though." Bing Shijue pointed to the octahedron in the distance, which had barely changed at all, and then looked at the ground, the light always lit up as his gaze moved, "Why haven't we changed after landing for so long?" ”

"This place is 3,000 kilometers deep, and this kind of thing, I think it should be normal to have a 500 or 600 floor." Zheng Kai said, stretching out his hand to compare the octahedron in the distance, "A few kilometers from one layer, it should take us more than ten minutes to descend." ”

"That's what I said." Bing Shijue jumped lightly and floated in the air, "But waiting like this is too much of a waste of time." ”

"But I can't fly like you." Zheng Kai simply sat on the ground, quietly looking at the octahedron in the distance, and also staring at the back of Bing Shijue's flight, "I suggest keeping a little distance from these things, you will still absorb energy, this kind of thing is also estimated to be pure energy, once you touch it, if something happens, we will all be finished." ”

"Don't worry." Bing Shijue nodded, and sped in the direction of the octahedron. Although all kinds of abilities are now suppressed, and there is no ability to fly near the speed of light, it is still possible to do it for a few hundred meters per second.

But it was such a flight that made Bing Shijue realize that something was wrong.

also made Zheng Kai's goosebumps sitting on the six-sided frisbee begin to flood rapidly.

In Bing Shijue's eyes, the regular octahedron was expanding, expanding, expanding in a slow way, even when he was flying at a speed of several hundred meters per second, even if he had been flying for more than ten seconds and was already a speed of several kilometers, this octahedron continued to expand at a slow speed.

In Zheng Kai's eyes, Bing Shijue's body became smaller and smaller, smaller and smaller, and finally even became a tiny dot on the filter, and finally disappeared.

"The size of this thing, it won't be ...... A few hundred kilometers......" Zheng Kai sat on the frisbee a little weakly, at this moment, he could only wait, waiting for Bing Shijue's return.

The shock in Bing Shijue's heart in the distance also made him slow down his flying speed, if the shock of the size of the Xuanwu before had been dissipated by those familiar buildings and familiar gates. And now, as he kept approaching, expanding, and even filling his entire field of vision, the pure crystals made him feel a strong sense of awe.

From the octahedron that originally covered the sky and the sun, now I can only see a pure and flawless, glowing surface in my eyes.

Ten minutes passed, and Bing Shijue realized that he had advanced two hundred kilometers, leaving behind only pure white, and black behind him, except for two smaller luminous objects that could be seen in the corner.

"Xuanwu won't have only three layers." Bing Shijue was thinking a little desperately, but the flight continued, and he felt that the whole world had returned to the scene he had seen when he dived underground, the world had been cut into two parts by the mighty force, the fiery orange-red magma, and the blackness of the Xuanwu's cracked vision.

Half an hour passed in the numb flight, and this time Bing Shijue was finally able to feel the warm feeling close to his skin, but the world in front of him turned pure white, and even his own clothes, his skin was illuminated by the strong light to pure white.

"It's almost more than 900 kilometers to feel it." Thinking of this kind of number, Bing Shijue only had a wry smile in his heart, this distance reminded him of the story told by his parents that in that era when there were no high-speed trains, ordinary families had to take days and nights to get there.

"It's time to go back." Bing Shijue raised his head and looked at the apex of the octahedron piercing the ceiling, and lowered his head again, he could also see another vertex that was hanging down in the distance. If it weren't for the familiarity of his body being able to slightly feel the transformation of light into energy, and if he didn't feel any sense of dying in his mind, he would definitely be running away.

During the long journey, Bing Shijue rediscovered Zheng Kai, who was illuminated in the dark, and his breathing began to become a little heavy due to the consumption of oxygen, but when the two finally saw each other, he was relieved.

"How's it going?" Zheng Kai watched Bing Shijue step on the frisbee, and the two of them slowly rose.

"For now, the good news is that we have more than 900 kilometers of energy." Bing Shijue said, staring at the harmless, well-behaved and lovely octahedron of humans and animals in the distance.

"The bad news?"

"We probably don't even know how to use this thing." Bing Shijue spread his hands, "When we see a vein, we may dig it, but do you dare to move when you see such a standard, suspended octahedron?" ”

"Absolutely not." Zheng Kai stared at the glowing geometry through the filter, "However, we will always touch this thing little by little." ”