"Even if we could have this layer, it would be enough to accommodate so many people on the planet." Zheng Kai looked around at the unfinished buildings and briefly estimated the distribution of the crowd, "The size of the houses here is about twenty or thirty square meters, and the middle aisle is also 3 to 5 meters wide. ”

"The question is how to get Xuanwu to the ground, right?"

"That's right, and then the text lights up over there, it's called ......" Zheng Kai narrowed his eyes and took a few steps closer, "The return workshop should be a place for the people who come." ”

"Looks like it's really good to take you." Bing Shijue also traced the shiny words in the sea of consciousness, and completely memorized the meaning, and then began to look around, his gaze wandering much faster than Zheng Kai. In an instant, a long dragon of bright colors lit up all over the ceiling and floor, and countless words appeared, "Can you find an entrance to other places?" ”

"Wait, wait, I can't read the text as fast as you." Zheng Kai frowned, staring at the shiny area where Bing Shijue's gaze slipped before, "Many of them are suffixes, and they should all be residential areas." And then this word Fang is actually my speculation, at present, there is no word Fang found in the oracle bone inscription, according to the appearance of similar houses, plus the density of the houses here, you can roughly speculate. ”

"So I'm just looking for the word that isn't Fang, right," Bing Shijue nodded, his body floating slightly. Although he can only fly a few meters in the air now, and his speed is limited, it is still much faster than Zheng Kai's several meters and a few meters.

"Yes, you can look at the ceiling when you find it, and this kind of light point can also help us identify the location to a certain extent." Zheng Kai said, his eyes began to wander around, looking for other words.

"Imagine a little, the people who lived here in ancient times, if the lights were lit according to their gaze, it would really be enough fantasy and science fiction scenes." Bing Shijue smiled, and his body continued to float, staring at everything around him above the house.

"But I think it's probably also a sign of energy scarcity." Zheng Kai thought for a moment and said, "If there were enough resources, there would be no such mechanism. Of course, this may also be because we entered the interior of Xuanwu after thousands of years, and what people saw back then was a piece of light. ”

"Don't talk so much, waste oxygen." Bing Shijue said, his eyes wandering around. After entering the foundation building period, his observation distance and fineness have also improved a lot.

"Actually, the air here is theoretically breathable, but just in case." Zheng Kai heard what Bing Shijue said, so he found a low wall to sit down, and bent down slightly to observe the smooth wall, "And the wall here may really be 3D printed, very smooth, and the junction is not sharp." Not even debris, if we master this technique, shipbuilding will be ......"

"It's going to be fast, and Zheng Kai, there may be good news here." Bing Shijue found a glowing text flashing on the ground hundreds of kilometers away. This is something he hadn't seen before. And this glyph is all too familiar to him, who used to be a teacher.

"What?"

"I saw the oracle of the door, I can be sure." Bing Shijue said, looking at Zheng Kai, who was sitting behind him resting, staring at the glowing words on the ground, "Is your oxygen content enough?" ”

"Except for the bag of compressed oxygen that I used to go back, the others can last two hours." Zheng Kai glanced at the dial of the projection and scolded with a smile, "If my physique can be the same as yours, I can go to any mountain and seabed, so I don't need to wear this." ”

"In general, there are no high-risk viruses and bacteria here." Bing Shijue glanced at it, "But it's really inconvenient for ordinary people...... Come, I'll take you. With that, Bing Shijue also flew to Zheng Kai's side, grabbed his arm, and led him to the location of the door he had seen before.

"I'm wondering how big the gap between the Level 3 civilization and our Level 1 civilization is." Zheng Kai looked at the flatter and flatter building, "Just if Xuanwu smashes into the earth, we may not be able to defend against it." ”

"Don't think about it yet, isn't it really how to get this thing to the ground?" Bing Shijue spoke, and also sent Zheng Kai to the place where he saw the word "door" before.

"Don't say it, besides, I want to resign from the position of director of Yanjiang City and become a scientific researcher with peace of mind." Zheng Kai's feet touched the solid floor again, and the two layers of protective clothing creaked under the trampling, "Look at this door first...... You read that right, it's the word door. Well? Just one word for the door, nothing else? ”

"Could it be that there was too much time to build it at that time, like our safety exits and whatever?" Bing Shijue scanned the surroundings, making sure that there were only large words on the ground.

"I don't know, I don't understand the principle behind this glow." Zheng Kai tried to stomp his feet, but there was no light on the ground, which made him a little frustrated, "It's not a pressure trigger, it's a visual trigger." But this doesn't fit the rules of exploration. ”

"But Zheng Kai, have you noticed that the light source emitted by your vision can make you see clearly no matter what." Bing Shijue said suddenly.

"Seems to be?" Zheng Kai suddenly looked at the ground, and the light became extremely gentle in front of him, illuminating everything around him. And when he looks into the distance, the distant light will also light up, but it will be more intense, and it will still allow him to see his body clearly.

"Adjust the amount of light based on the relative position of the observer's gaze? Well...... But at a distance of 3,000 kilometers, how can I do it if I want to look into the distance, wouldn't that consume more energy? Or is this light just a form of expression, and in terms of results, it should be pressed to trigger the simplest and most energy-efficient. Zheng Kai fell into contemplation for a while, and after staring at the ice suspended in the air, he clapped his hands suddenly.

"By the way, there used to be immortal cultivators, and immortal cultivators basically flew and didn't touch the ground. Assuming that people in the past used this form, then triggering becomes unnecessary. That's why this line of sight triggering is used...... If that's the case, let's say it's all full of people. Then when the immortal cultivators patrolled, the intruder's gaze would definitely wander everywhere, and this chaos would reveal the location. ”

"Congratulations, it looks like you have a lot of inspiration." Bing Shijue smiled, he was taking out a football-sized spar from the sea of knowledge, slowly absorbing it, "It just so happens that I'm almost ready, see if I can open this door." ”

"Aren't you able to absorb the heat of magma along the way?" After Zheng Kai figured out a question, his mood was also a lot more relaxed.

"Yes, but it takes a little bit of thought to help keep the lava around you avoided." Bing Shijue exhaled and inhaled, and the spar also melted in the palm of his hand, "In addition, although this clothing of ours is newly developed, it can't withstand the temperature of the lower mantle at all, and it will be burned directly as soon as it touches it, so it can't be absorbed while maintaining a safe cavity." ”

"Who called you an immortal cultivator, you can go to a place with a temperature of several thousand degrees, ordinary clothes can't withstand this kind of burning at all." Zheng Kai waved his hand helplessly, "That's it, let's take a look at the door below, can it be opened?" ”

"It shouldn't be difficult." Bing Shijue touched the ground slightly with his feet, squatted down, and condensed enough energy into his palms to inject into the earth.

The moment the palm was pressed, the light began to light up, and began to spread and spread out like a pattern, making Zheng Kai's eyes squint in an instant, and Bing Shijue's pupils began to shrink rapidly to adapt to the abrupt amount of light.

These rays of light began to take on a regular shape as they flowed, scattered, and converged into a hexagon. Centered on where Ice Beginning was located, the rest of the floor vanished as if folded, leaving only the hexagonal body that was large enough to stand at his feet.

Zheng Kai's feet are the same, but the hexagonal body under his feet is larger, allowing him to stand more smoothly.

With a single glance, they saw a gentle glow emanating from the hollow beneath their feet. The two of them couldn't help but crouch down, turning their heads sideways to see what was going on beneath the thick floor.