"Wang Xingguo, what do you say we die here?" Xia Ruobing suddenly remembered this question.

"Isn't that still dead?"

"I said what if...... For example, I'm dead, you're still alive, what are you going to do? Xia Ruobing asked.

"I never make that assumption." Wang Xingguo saw that there was a fork in the road in front of him again, and his mind was thinking about whether it was left or right? Anyway, at this time, the southeast and northwest are no longer meaningful here.

"If my parents die here and I die here, is that a kind of reincarnation?"

"For me, I only think about what is now and what is going to happen." In this case, discussing death is indeed frustrating, and Wang Xingguo wants to avoid this frustration from spreading, and he wants to pull the conversation away.

"Wang Xingguo, if I die, you have to help me bring back the Lu Wen comparison table and my mother's notes." At this time, it was not a good thing for Xia Ruobing to say this, which proved that her morale was very low, and Wang Xingguo had to answer smart enough to stop her from continuing to think nonsense.

"Doing anything no longer makes no sense to the dead, only to the living." Wang Xingguo thought for a while and said.

"Hey...... Wang Xingguo, your words are quite philosophical! Xia Ruobing felt that this answer was quite satisfactory.

"Hmm...... Left...... Right? There was another fork in the road, which was a total of 719 steps away from the starting position, about 400 meters forward, turned two corners, and crossed a fork in the road, this is the second one, Wang Xingguo sketched the cave map in his mind.

"Didn't you say theoretically to the right?" Xia Ruobing looked left and right, but she was actually not sure.

"Hmm...... Theoretically, yes. Wang Xingguo stopped and handed the flashlight to Xia Ruobing, "Take it and rest for two minutes." ”

"What are you doing?" Xia Ruobing took the flashlight, and Wang Xingguo took out a pencil and drawing paper from his pocket.

"Draw a circuit map." Wang Xingguo unfolded the paper and began to draw the impression of the cave in his mind on the map, marking the turns, forks, and some key points that are easy to distinguish.

Wang Xingguo sketched out the route on the paper, and marked the two blocked passages, which they had been turning to the right, and if these passages were interconnected, they would have returned to the same place after a few more turns.

After drawing the route diagram, Wang Xingguo stared at the line on the paper in a daze, and didn't speak for a long time, Xia Ruobing pushed him: "What's wrong?" ”

"I think it's a bit of a problem." Wang Xingguo can't say it well.

"Drawing it wrong?" Xia Ruobing chuckled in her heart.

"Xia Ruobing, does Loulan have a solar burial system underground?" Wang Xingguo raised his head, looked at Xia Ruobing and asked.

"This ......" Xia Ruobing thought about it and shook his head, "No, the sun burial in Loulan is to dig a circular depression in the open space, place the coffin in the middle, and then radiate outward and insert poplar stakes. ”

"Is that so?" According to Xia Ruobing's description, Wang Xingguo drew a sketch on the paper with a few strokes.

"Yes."

"If you look at the route map, this is the stone chamber where we fell, there is no passage, and then we climbed up here and followed the passage to find the stone chamber of the mural, and there are several passages in the stone chamber that are radiating outward, and then there is this small stone chamber, and there are also several passages...... The passages are connected......" Wang Xingguo said, pointing to the route map.

"Are you in the right proportions?" Xia Ruobing looked at the passages and stone chambers, although those passages diverged from the stone chambers and connected to other stone chambers, but these passages were not symmetrical, 2000 years ago, the symmetry was beautiful, the circular cemetery was like the sun, and those poplar stakes were like sunlight radiating around.

"It's not easy to dig symmetrical passages in such an underground, and most of these passages have been modified and processed using natural passages." Wang Xingguo thought for a while and said.

"I'm not sure, but there's really no such way to bury the sun." Xia Ruobing shook her head again.

"Could it be that some other desert people have come here?" Wang Xingguo did not give up.

"Wusun, Yanqi, Khotan, Ruoqiang...... Loulan, in the 36 ancient kingdoms of the Western Regions, there is no such burial method. Xia Ruobing said with certainty.

"Alright, let's move on." Wang Xingguo is almost resting, and there is no need to continue wasting time.

Walking along the passage for a while, a big cave suddenly opened up, this is a cave that has not been artificially carved, the mountain stone that was squeezed out by pressure is like the fangs of a beast abruptly in the cave, Wang Xingguo touched these dark brown stones with his hand, this is a hematite with a higher iron content, and shone it around with a flashlight, and there was a platform in the corner of his eye to see that there was a platform in the high place, and the flashlight illuminated it, then there might be a passage to the ground, but the weak light could not be seen clearly, he turned it into a strong light, but the platform did not have any channel, Wang Xingguo was a little disappointed.

"Over there?" Xia Ruobing looked at the three passages in the cave.

"This way!" Wang Xingguo turned the flashlight back to the low light, shook it towards the passage in the middle, and motioned for Xia Ruobing to continue to move forward.

The passage was fairly straight compared to the originals, and the walls on both sides of the passage had been carefully carved, and the low-grade hematite mixed with sand and gravel was much better than the hard marble, but where did the stone and earth go? Xia Ruobing thought about things, and accidentally tripped under her feet, and her knee hit the ground again, making her grin in pain.

"Why was it so careless?" Wang Xingguo stepped forward to help her up, and her knee injury would be troublesome if she hurt again.

Xia Ruobing rubbed her knees, and suddenly her hand stopped, and her eyes were attracted by something shining on the pillar of light.

She tripped over a piece of gravel under her feet, but this is not the common hematite here, hematite shows yellow or brown depending on the content, but what tripped her was a white stone, Xia Ruobing wiped off the pollutants outside, this is a piece of limestone!

"Huh? Limestone? Wang Xingguo also noticed.

This is a stone of about 20 kilograms, there are traces of carving on the side, but it has not been carved and formed, it has become waste and discarded here, Xia Ruobing turned on the flashlight and shone into the depths of the passage, and found that there were some white stones scattered in the distance.

"There's still there!" Xia Ruobing ignored the pain in her knees and limped towards the stones.

"Hey! Watch your feet! Wang Xingguo reminded him, but where could he control Xia Ruobing, so he had to hurry up and follow.