After listening to Keli's explanation, Song Siyuan continued to ask: "Then, how did these quicksands form?" Didn't it mean that Mirranze had dried up, and if it had dried up completely, how did these mortar quicksands appear? ”

They were really curious about this, and they had to ask a little more clearly.

Keli shook his head, and he didn't seem to know very clearly: "I don't know the specific cause, when I went to the quicksand with Abba, I once heard him mention a ......"

It is true that Mirlanze dried up after the diversion of the Peacock River, forming alkaline tidal flats, but the emaciated camel is bigger than the horse, and this Mirlanze has been soaked for thousands of years after all, and what really dried up was actually the surface of the lake basin, which formed a hard salt crust several inches thick on the surface of the lake basin.

Because of this, the lake basin is shaped like a cover, completely covering the land under the lake basin, and there are some underground caves under these covered lake basins that have not completely dried up, so that the groundwater can be continuously replenished to the mud under the salt crust, forming a soil state similar to a swamp.

In the event of an earthquake or an impact on the salt crust, the salt crust will break open, exposing the salt crust in the swamp beneath the salt crust, and at the same time, the many hills above the lake basin will be eroded by the wind and sand, forming sand and soil falling on the swamp, which will allow the sand and swamp to mix and form a viscous mortar.

As the desertification of the hills has stopped, the swamp is permanently covered with a layer of dry sand, creating the illusion of complete dryness near the lake basin, and if you don't pay attention, you may walk on it as an ordinary bunker.

Once the body falls into a deep pit, it will be sucked into the swamp under the pull of the silt, the strength of people is really limited, these mud suction is very strong, and it is very easy to cause the vibration of the ground or the sound disturbance and flow dynamics, forming a turbulent flow of quicksand, plus the mud comes from the underground cave and dark river, it is more likely to have downward suction, as long as people and animals fall into it, it is easy to escape.

It is precisely because the sand cannot be disturbed that the city of Sand is called the Devil's Ear, which only means that as long as the devil hears someone coming, it is possible to cast magic and make people disappear into the quicksand.

Keli's words basically explained why the Devil Sand City was terrifying, Yue Guanchao pointed to the photo and asked: "What are the long earthen platforms between these sand dunes, and why was the tomb built on the top of the mountain?" ”

From the beginning, they were curious about why the water tomb appeared on the top of the mountain, and while Keli was familiar with Sha'er City, they simply asked this time to avoid danger in the place.

Kryan carefully observed the recent photos of the mounds and the long earthen platform on these photographs, and after a moment of thought, he continued to explain: "As I mentioned earlier, in addition to the largest oasis in Mirland, there are thousands of oases in the entire Mirland, and these oases are surrounded by water on all sides and high above the land, like islands. ”

"The sand mountains we see are actually many islands in Daze in the past......"

These oasis islands are located on the outskirts of Miran City, and according to ancient records, there are about tens of thousands of Mirlan oasis islands, shaped like chessboards, scattered in and around Daze.

They served two purposes, one was to serve as a port for commercial ships to dock, and the other was to serve as land in the water, which was used to place tombs for the people of Mirlan City, so that they could be used to bury the bones of their relatives.

Island burial bones is the funeral custom of Mirlan City!

Mirlan City is an important commercial town in Central Asia leading to the East, the price of land in the nearby oasis is very expensive, especially the oasis of Mirlan City is surrounded by water on all sides, the price is even more expensive, under normal circumstances, it is used to build guild halls, commercial buildings, temples, mansions, it is not allowed to build tombs and other buildings that occupy an area, whether it is a commoner or a nobleman, can only send the body into a coffin, buried in a water island.

In this way, you can not only stay away from Daze, but also use the island to locate it, so as not to disappear the tomb.

The long and huge lines in between, presumably the irrigation canals that stretched from the city of Myran to the outside world, and it was through these irrigation canals that the people of Myran could cultivate and work between the oases.

After the lack of water in Mirandze, the irrigation canals first ceased to function, and the oases gradually degraded, and then Daze dried up completely, and the islands degraded from oasis islands to sand hills, which are what they are today.

These so-called sand mountains, which used to be island oases in Daze, were not high at the waterside at that time, but the water level fell over the millennium, allowing the mountain land to emerge from the water, and the height difference was too great to make them look like towering hills.

Those tombs that were originally buried on the oasis islands, of course, were buried on the top of a mountain dozens of meters above the ground under geographical changes, thus creating the wonder of the tomb going up the mountain.

Speaking of which, everyone finally understood why Steinkhin found the tomb on the top of the sand mountain, it was not some accident, but the original form of burial of the people of Mirland.

"Are you really going to go?"

Keli said just now, first explain the danger of Shar City, if they still want to go after knowing the danger of Shar City, then he will also sacrifice his life to accompany the gentleman.

Song Siyuan nodded: "Of course, if my guess is right, Miran City is actually Milan City, since he is a remnant city of the ancient Shanshan civilization, we really have to go." ”

"Kelly, what about you?"

Seeing Yue Guanchao stretching out his arm, Keli snapped and patted it: "Sacrifice my life to accompany the gentleman, I will go with you, and when I settle Nayi, I will prepare some things to take you to Sha'er City." ”

"Okay, that's a deal."

Several people discussed the plan, and it had been delayed for an hour or two, and at this time it was already the second half of the night, Nayi and Keli must also be resting, Yue Guanchao led everyone out of the cave, and returned to the grotto of the royal Taoist.

Sitting in the cave, Daoist Wang obviously had something to say, his eyes flickered, Yue Guanchao noticed this, and asked, "Daoist Wang, do you have anything to say, it looks sneaky." ”

Wang Yuanzhen lowered his head and picked up the tea bowl and took a sip of sand date tea, and said honestly: "I wondered, can you also take me." ”

"Take you? What are you doing in Shar City? ”

Yue Guanchao became curious, squinting his eyes full of doubts.

Daoist Wang took off his round hat and touched his gray bun: "Since Miran City is an important commercial town, and there are many noble tombs, there must be a lot of gold and silver utensils among them, even if you just get one of them, I am the Taiqing Palace...... Hey, hey, hey, you'll be full. ”

It turned out that it was the idea of a nobleman's tomb, Yue Guanchao hurriedly waved his hand: "Then your wish is about to be disappointed, Keli is to find the truth about the disappearance of Gunizi, and we just want to see if the ruins of the ancient Shanshan civilization can find traces of the royal city." ”

"Whether it's him or us, he doesn't mean to rob the tomb, you follow us in vain, you may not really be able to find the noble tomb, as for whether you can get any gold and silver utensils, that's even more later."

Xu Xiake hugged Daoist Wang's neck: "How can a monk have such a great desire for money, you still stay in the Thousand Buddha Cave, and when we come back, we will build the Taiqing Palace for you, and you will be here in the future." ”

Wang Daoist nodded slightly, and said in a rather helpless tone: "Old Taoist, I used to think the same, all the money I raised was used to repair the Thousand Buddha Caves, if I was interested in property, I would have sold all the scriptures I found, but after you built the Taiqing Palace for me, the Thousand Buddha Caves are still in tatters, as long as I get a piece of gold or silverware, I don't have to worry about silver money in my life, and the Thousand Buddha Caves will be saved." ”

He paused, and his tone was quite innocent and pious: "Even if we take a step back and say that we didn't get the gold and silver artifacts when we went to Sha'er City, it can be regarded as my help to you, I deserve this Taiqing Palace, after all, I have earned my own belongings by getting involved in danger." ”

Yue Guanchao narrowed his eyes: "But I still don't know how you can help us, you can't carry it on your shoulders, what can you do us to help?" ”

Daoist Wang seemed to know that he had this question, nodded and pretended to be profound: "Old Daoist, I have been in the Thousand Buddha Cave for so many years, and I still know a lot of Buddhist scriptures and allusions, do you know why Milan City is also called Milan?" ”

"I want to hear about it." Yue Guanchao spread his hands and motioned for Daoist Wang to continue.