Lang Xiaobai said kindly: "Ah Cai, I understand your state of mind very well. By the way, where do you put that big hat when you're not wearing it on weekdays?"

"Well, that big hat is made of wool, so it's very soft and soft. When not in use, fold it up and put it in your pocket. ”

"What about the wooden shoes?"

"The shoes looked like they were wooden shoes, but they were actually made of soft rubber."

"Oh? I see. So when you walk, it doesn't make a noise, and you can climb stairs or diamond head seams while wearing it, right?"

"Yes."

"So, you've become a mysterious weirdo out of nowhere! Now that I finally know the true face of the weirdo, thank you for telling me without reservation. Ah Cai, in order to reward your sincerity, I will give you gold sand, and fill your big hat and big wooden shoes. ”

"No, I can't...... And, so far, the gold sand hasn't been found!"

"Yes, I haven't found the gold sand yet, but I'll find it."

"May I assist you? I've found a good way. ”

"I don't think so, because I've already thought of a way."

"Oh? How?"

"Have you noticed, the last line of the number on Mr. Xie Yunqing's will?"

Ah Cai said: "Yes, I noticed. Mr. Jiang Kai said that the numbers were meaningless, but I disagree with him. It is absolutely impossible for Mr. Xie Yunqing to leave useless Arabic numerals on such an important will. So I speculate that it must mean something.

"Moreover, the will also indicates that the secret recipe for alchemy will will be left behind, but we will not find such a document anyway. So I reasoned, did Mr. Xie Yunqing die suddenly and didn't have time to leave a secret recipe? Then I tried my best to analyze the numbers, and finally discovered the secret of that line of Arabic numerals. ”

"When did this happen?" Xiao Bin asked.

"It was found a few days before Mr. Jiang Kai was killed. I was so excited that I had unlocked the secret of the numbers, and I immediately followed the above method, but I still didn't get the gold sand or the secret recipe. ”

"That's for sure." Lang Xiaobai said with a smile.

"Why?"

"You have solved the mystery of Arabic numerals, but you cannot decipher their meaning."

"So, you know?"

"Yes, I see."

"Do you understand what it means?"

"I understand."

Ah Cai stared at Lang Xiaobai with wide eyes.

Xiao Bin, Xie Yan, and Juanzi also stared at him, and even Ah Qiao, who was crying, held back her tears at this time, holding a handkerchief and watching him distracted.

"Are your words true?"

"If you have any doubts, we'll find gold sand to prove it right away."

"Immediately?"

"But it's not windy tonight."

"If the wind is not too strong, can't it?"

"Yes, it's good to look for gold sand when it's pouring rain."

"Why?"

"From what you asked, you don't understand what it means."

Lang Xiaobai said with a smile, then lit a cigar and put it in his mouth, smoking leisurely.

The next morning, the wind and rain tightened. Since last night, the wind has been blowing stronger and stronger, and it is mixed with heavy rain.

"The storm is coming."

Lang Xiaobai stared out the window, the tall trees in the yard were crumbling by the wind, and even the depression was full of rain. He also heard the roar of the gold rush river.

"Wow! What a violent storm. In such weather, it is impossible to find gold sand. Xiao Bin muttered to himself.

"No, we'll go to the river in a little while to find the gold sand, but we'll have to have breakfast beforehand."

Ah Qiao prepared food for a few people in the dining room. When they had finished using it, they sat down in the hall and waited for the time to go, but the wind and rain were more violent.

"Forget it!" Xiao Bin persuaded.

"No, we'll go right away!"

As soon as they came out of the house, they were almost blown down by the wind. Lang Xiaobai took Juanzi's hand, and Xiao Bin also protected Xie Yan in the heavy rain, and it took a long time to reach the river.

The river overflowed the land because of the rising tide.

"The tide will rise even higher after a while, combined with floods and storms, but it will not be long before the tide recedes. At that point, the wind may no longer blow. ”

With that, Lang Xiaobai led the three of them to the wooden bridge. The water level has been long, and it is about to approach the bridge deck.

"Be careful! Hold on to the handrails!"

In the raging storm, Lang Xiaobai's shouts were not very real. The bridge "clicked", and water was already pouring in from the rotten wooden plank.

Lang Xiaobai was the first to cross the wooden bridge, and Xie Yan and Juanzi also followed him with fear. Because the wind and rain were too strong, the two sisters almost couldn't stand steadily, so they screamed loudly and hugged each other. At last they walked over, and the two sisters were so frightened that their faces were blank, and their hats and coats were soaked through the rain.

Xiao Bin also cautiously crossed the wooden bridge. The four of them held hands and barely managed to reach the front of the loft.

Lang Xiaobai took out the homemade key and opened the door of the pigeon house and turned on the light. Lang Xiaobai not only repaired the broken wires in advance, but also replaced them with a new light bulb.

Then, Lang Xiaobai turned on the light in the basement again. On the basement wall hangs a metal mesh made of wire, fixed around it with a square iron frame, as if it were a giant sieve.

This is the metal mesh used by Mr. Xie Yunqing to fish for gold sand. Ah Cai and Ah Qiao thought of using a cloth bag to collect gold sand, but the weight of the cloth bag was too light, it was easy to be washed away by water, and after the cloth bag was filled with water, it could not be dragged at all. ”

As Lang Xiaobai spoke, he climbed onto the wooden chair attached to the corner of the wall, and there happened to be a window in front of him. From there, you can see the island, and on the other side is the rough water. In other words, the roof of this basement is only one meter above the ground.

Lang Xiaobai opened the glass window, and the wind, heavy rain and the cold air outside poured in at once.

Lang Xiaobai asked Xiao Bin to assist him. The metal mesh was handed out of the window, and the four men came out of the basement to the front of the pigeon loft.

"Don't come out here, it's too stormy outside."

Lang Xiaobai asked the two sisters Xie Yan to stay in the pigeon house, and he and Xiao Bin carried the metal mesh to the bridge.

The pillars at both ends of the bridge were heavier and firmer than the rest of the planks, and there was a thick longitudinal groove on it.

"This place fits just in the four corners of the metal mesh. Xiao Bin, you go to the other side!" Xiao Bin walked over the bridge, and then worked together with Lang Xiaobai to lift the metal mesh, and put it into the trench with great effort.

"Alright, let's go back! In this way, we are equivalent of leaving the big net behind and waiting for the fish to come in. Although this metal mesh is not very old, the grooves on the pillars of this bridge are very old, perhaps a hundred or two hundred years old. In other words, it was this method that the owner or large landowner of this place used this method to find gold sand a long time ago. ”

"So, you also got the gold sand at that time?"

"yes, that's why it's called the Gold Rush River."