Sensing the abnormal movement, Fang Nian knew that something more fierce must be coming, and these insects would become so irritable, they were obviously fleeing.

"Not good."

Fang Nian said in his heart, and then took advantage of the firelight to shine into the depths of the mountain.

However, because the torch's light was too scattered, and the torch was indeed too small, he couldn't see anything over there, but Fang Nian was sure that this thing definitely didn't come to talk to them.

So he no longer hesitated, found two horseshoe locks that were closer to him, stepped on them with a swing, and then inserted the torch in his mouth into the gap in the rock wall, and then directly hugged Cai Wenji with his right arm, and then began to run away at an indescribable speed.

Fang Nian could feel that that thing was not an ordinary thing, it gave him the feeling that it was like the monster he had seen in "Doomsday Train" before, and this one seemed to be even more powerful.

When Fang Nian stopped with Cai Wenji, he had already come to an open space where he could stay.

At this time, under Fang Nian's feet, the river was still speeding rapidly, but the down-to-earth sense of steadiness made him very comfortable, it can be said that for the first time in so many years, he felt that the ground could bring such a good feeling

After taking a few breaths, Fang Nian put down Cai Wenji beside him, only to find that Cai Wenji had woken up, but her body was still very weak.

Fang Nian touched the substance that he stepped on on the soles of his feet, it was very hard, it was indeed a crystal, and it had a very clear sense of contour and edges.

"This is a natural crystal mine?"

Fang Nian was extremely shocked, you must know that if this is really a natural crystal mine, if it is placed in Fang Nian's world, I am afraid that this will cause a big war, after all, it is all money.

Crystal, a rare mineral, a kind of gemstone, quartz crystal, belongs to the quartz group in mineralogy, the main chemical component is silicon dioxide, the chemical formula is SiO2, and it forms colorless and transparent crystals when pure.

When it contains trace elements such as AL and Fe, it is purple, yellow, brown, etc., and the irradiated trace elements form different types of color centers to produce different colors, such as purple, yellow, brown, pink, etc.

Containing associated inclusions are called inclusion crystals, such as hair crystals, green ghosts, etc., and the inclusions are rutile, tourmaline, actinolite, mica, chlorite, etc.

If it is placed in modern times, then its value is probably higher than the value of the latest aircraft carrier.

However, when Fang Nian touched a few more places, he found that this crystal mine cave may not have been formed naturally, because except for a few places where there were obvious traces of crystallization, most of the places had signs of smelting.

In other words, this crystal canal was deliberately built by artificiality, so this thing is terrible, you must know how difficult it will be to smelt crystal in this era.

And to build a canal with this kind of thing, such a thing is probably not much simpler than Qin Shi Huang building the Great Wall.

If this is really as Fang Nian thought, it was dug out by hand, then the skills of this ancient craftsman are a little too rebellious.

"Crystal canals? What's going on? ”

Cai Wenji, who had finally recovered a little, couldn't help but ask curiously.

In her->>

She didn't seem to see anything like crystals in her eyes, so she was still looking around.

"At your feet." Fang Nian said lightly.

At this time, Cai Wenji looked down at her feet, and for a while, she also felt the feeling of numbness in her scalp, because she found that she was now standing in a suspended river, and for a while there was a little more fear in her heart, which was like your overpass in the 21st century.

Cai Wenji was surprised for a while, this was really something she had never seen in her life.

After about half an hour, the two of them still had no news from anyone else, so they continued to explore along the natural crystal river.

Continuing to walk along the Crystal River Canal, just turning a corner, Fang Nian and Cai Wenji saw an entrance with light shining in.

At this time, water was constantly pouring into the cave, and Fang Nian could see very clearly that the water poured into the cave was intercepted by a platform at the entrance of the cave and refracted into the cave, and the water source outside looked a little like a waterfall.

Seeing such a scene, Fang Nian seemed to understand something instantly, so he quickened his pace, and in a few steps, he collapsed out against the rapid water on his head, and stood outside this hole, the platform used to lead water into the canal, and Fang Nian found that this platform was also made of crystal, which made Fang Nian even more convinced that the craftsmen of this era already had the technology of smelting crystal.

However, just after Fang Nian stood on this platform, the whole person fell into a stupor, looking at all the scenery under the platform, the shock in his heart was indescribable, and he was even a little overwhelmed, standing there motionless for a long time, even his mind, which often thought about some things, felt a little stagnant.

"What's wrong?" Cai Wenji was not very relieved when she saw Fang Nian's abnormal state, so she also followed.

But when she stood beside Fang Nian, the expression on her face was exactly the same as Fang Nian's, even Fang Nian's surprise.

And the reason why Fang Nian and Cai Wenji showed such expressions was because what appeared in front of their eyes at this time was too shocking.

For they saw a city, a city the size of the city of Galo.

The two of them looked at everything in front of them in shock, and couldn't calm the shock in their hearts for a long time, although they were also people who had seen the world, but they couldn't calm down if they saw this.

Cai Wenji gradually slowly recovered from that shocked atmosphere, and asked Fang Nian with a hint of suspicion.

"This is where the owner of this tomb is, right? I have to say that this is really big, and it would be used to build tombs in this kind of place. ”

Fang Nian nodded, also relieving himself from that atmosphere, and said with a hint of embarrassment.

"If you follow the positioning of Feng Shui, it is true that this is the main burial chamber. It's just strange that the yang energy here is very heavy, but the yin energy has not reached the level of a tomb, or the level of such a large tomb. ”

Cai Wenji glanced at Fang Nian.

"It's not there yet? It's built underground, and it's such a big city. I don't think it's like a tomb, it's like an ancient city, and maybe it's still inhabited. ”

Fang Nian didn't take Cai Wenji's words and continue to argue with her, but observed everything here.

。