"Because the rivers in this area have heavy rains in the morning and evening from March 13 to March 16, and from September 12 to 15, and there are many storms during this period, the water of the Taojin River will churn and jump, so that the sediment at the bottom of the river will roll up and become a rolling muddy stream."

"Oh! I know. Because the river rolled up the mud and sand at the bottom, and the golden sand hidden below ran to the surface of the water, and was carried to the side of the wooden bridge, is that right?"

"No, it's not. Mr. Xiao Jue, Ah Cai and you have the same idea, but in fact this is not right at all. ”

"Why not?"

"There is no gold placer at the bottom of the river, and there is no gold placer upstream. In order to get to the bottom of this strange story, I learned about the geological structure of the area and analysed the geographical documents, so I understood that there was no gold in the area at all, and of course there would be no gold sand at the bottom of the river. The Gold Rush River is just a vain name. ”

"Is that so? But didn't we just get real gold sand? Where did they come from?"

"I don't know who hid a large amount of gold upstream, and then the river washed down again. In ancient times, the big landlords and lords did not know the inside story, but believed that the gold sand came from the bottom of the river, so they called this river the gold rush river. Mr. Xie Yunqing got these gold sands, but he lied to outsiders that he had refined them with alchemy. ”

"I still don't know ......," Xiao Bin shook his head.

"You're stupid, but you must know about it, right? Lang Xiaobai said to Sister Xie Yan, who had been eagerly listening to the cause of the incident from the beginning.

"No, we don't know ......," Xie Yan said with a flushed face.

"Well, listen to me slowly.

"In ancient times, there was a man who kept a large amount of gold in a closed pot and hid it somewhere. After a few hundred years, the pots cracked open, and with each tidal impact, the cracks became larger, so that the gold sand naturally flowed out.

"I don't know who first caught the gold sand? I don't know where the gold sand came from? Maybe in the surrounding manors and aristocratic landlords' houses, I can find the answer by looking through the ancient books, but I don't have the time or opportunity to do this yet. ”

"Ahh Do you speak of ancient texts on these things? I know!" Juanzi suddenly remembered.

"Is that true?"

Lang Xiaobai couldn't help but shout, and he could hear that his voice was full of excitement.

"Yes. My grandfather's study kept books and periodicals from before 1751 AD, and there was a topographic map of the geography of Taojinqiao Village. On that old map, the name of the river was not the Gold Rush River, but the Beak River. ”

"What? You call it the Bird's Beak River?" Lang Xiaobai stood up in surprise. "Is it really called the Bird's Beak River?" Lang Xiaobai asked hurriedly.

"Yes, I'm not mistaken."

"Great! In this way, my inference is correct. This unsolved case has finally come to light, and I finally understand where the gold sand came from. ”

Lang Xiaobai shouted happily. Xiao Bin and Xie Yan stared at him for some reason.

"More than 180 years ago, gold sand did not appear in the river, so why did it flow into the river later? It must have been a crack in the gold sand pot placed in a secret place upstream of the river, so the gold sand was carried into the river by the water.

"So, where are these pots of gold sand placed? I racked my brains and couldn't think of it, but what Fang Caijuanzi said suddenly reminded me that all doubts had been dispelled.

"Is there anything in this river that resembles a bird's beak? Suddenly I remembered that it was the mound. The mound was surrounded by water on three sides, and the upper mound formed a triangular protrusion against the river, just like a bird's beak.

"The mound that was high in ancient times became more and more gentle. Why is this happening? Because the mound has collapsed. So why did the mound collapse for no apparent reason? I think there is only one answer, and that is that the middle of this mound is empty.

"The hollow mound is not a natural formation, but a man-made structure. When I think of man-made mounds, you will definitely think of the tombs of ancient emperors and nobles. Inside the tomb was a spacious stone hut that had collapsed due to earthquakes or other natural causes, making the rise of the mound less noticeable day by day,...... This is my inference. ”

What Lang Xiaobai said was reasonable, and after everyone listened to it, they were convinced, and he continued:

"The stone house in the tomb will not only store the body of the deceased, but also some funerary goods. For example, the armor, weapons, and daily necessities used by the deceased during his lifetime, as well as precious stone boxes and porcelain pots containing gold.

"There must have been gold clay pots in the stone houses under the mound, and not a few. These porcelain pots have been broken for hundreds of years and have been broken by the collapse of the stone house, and gold sand may have flowed out.

"On days when the flood rises, the river rushes up from the basement and carries out a lot of mud mixed with gold sand. Later, someone caught these gold sands in the river, so it was logical to change the name of the river to the Gold Rush River. ”

"Xiao Bin, the gold sand you fished out of the water was washed out of the stone house."

"I see. So, who exactly put the pot of gold sand into the stone house? Moreover, since ancient times, there has been a situation of golden sand overflowing, and its quantity is not small, whose gold sand is it?"

"I don't know very well, maybe it has something to do with the proximity to Dongzhou City. In ancient times, this place may have been a metropolis. The ruler of this city must be a man of infinite power and wealth. He sent someone to build a mausoleum to store the gold sand, but he may have died of a violent illness or died on the battlefield, and he didn't have time to tell his children about it, so the gold sand stored in the pot has been kept in the tomb. It wasn't until more than 100 years ago that the golden sand flowed out of the crack of the kettle, giving the river its name Gold Rush River. ”

"Is all that gold still there?"

"Yes. However, after a few hundred years, there must be a lot of gold sand that has been swept away by the river, so there will not be much left. Anyway, won't we go and see what we're all about?"

"Look? Where to look?"

"Go to the stone house inside the mound!"

"I don't know how long it will take to excavate such a large project as a mausoleum, and how many people will it take?"

"No, an hour or two is enough."

"How so?"

"That's true. Because the stone house where the gold is buried is not located too deep underground, and it is reasonable to place the gold in a stone house that is not known to outsiders, but can be entered by one's own people without much effort.

"I searched the terrain above the mound, and found a granite stone wall about a meter below the grass, which must have been a secret door leading to the stone house. I believe that if you dig through the earth of that wall, you can enter the stone chamber. Come on, let's give it a try!"