This morning, the mountain people Ma De got up early to go to the market, passed by the gate of the mountain temple, and saw a large group of people, all craning their necks to read a notice that had just been pasted on the wall. As soon as Ma De inquired, it turned out that it was the newly enthroned king's order to collect gems from the world. When Ma De heard the words, his heart "thumped" for a while, and he hurriedly squeezed in front of the crowd to watch carefully, only to see the text of the notice clearly stated: As long as the gems offered can satisfy the king, the gems can be offered to the gems. Ma De thought for a moment, threw the burden full of mountain goods underground, and did not care about the market, turned his head and ran home. Seeing this, people talked one after another: Could this old man have gems hidden in his house?

Besides, no one knew that the new king was still a gem lover before. No, he had only been king for a few days, and before the old king's funeral was over, he brought a group of confidant ministers to the royal treasure house to appreciate the collection of gems. Faced with these priceless gems, the king frowned and seemed to dislike them. Seeing this, a minister who was good at flattering came up with an idea: "Now that our country and the enemy are temporarily at peace, why not take the opportunity to order the whole country to collect gems hidden in the people?"

The king thought it was a good idea, so he followed the plan and chose a day as "Treasure Day." Some upright ministers thought it was a toy, but the king insisted on going his own way, and no one could help him.

On the day of the treasure offering, the first person to offer the gem was a lame centurion, who offered a crystal stone taken from the enemy officer during the war. This crystal stone was exquisite and clear, and the carving was fine. The centurion thought he could please the king, but the king only glanced at it twice, and waved it away without even picking up the connection.

The second person who came to offer the gem was a merchant who offered a bloodstone. This bloodstone was carved into a statue of the God of Wealth. When the king saw it, he only "hummed" a few times from his nose.

The third person to offer the stone was a beautiful woman with an outstanding appearance. She offered a stone hairpin with a feminine fragrance. However, the king mercilessly threw the hairpin at his feet, which embarrassed the beautiful woman who wanted to be the new queen.

In the blink of an eye, half a day had passed since the day of offering the treasure, but not a single gem could satisfy the king. At this time, Madeira came to him with a parcel, panting. When he opened the parcel, everyone was dumbfounded. Inside was a rectangular gray stone, neither clear nor delicate, but just cumbersome. The king asked Madeira, "What kind of stone is this?"

Mader said respectfully, "Your Majesty, this is my family's ancestral whetstone."

Mader told the king that this whetstone was unique. When sharpening knives, there was no need to sprinkle water, just dry grinding, which was particularly important in the desert battlefield where water was extremely scarce. No matter how many swords were sharpened, the stone itself would not be worn, and even the powder would not fall off. Moreover, the efficiency of sharpening knives was extremely high, and it only took a few strokes back and forth to make the sword extremely sharp. After being sharpened, the sword was very durable and did not need to be sharpened for a few years.

On the day of the market, Ma De learned from the notice that the king was going to collect the gems of the world. As a patriot, he was keenly aware of the abnormality and felt that the country might fall into the flames of war again. In any case, his whetstone could no longer lie at home and sleep, so he rode a fast horse to offer the treasure.

Hearing Mudd's words, the king asked in surprise, "Is this true?"

The lame centurion questioned, "How can there be such a miraculous stone in the world? I think this person must be a spy of the enemy country. As long as you take a knife that has not yet been bladed and let him sharpen it, the truth will be revealed."

The king nodded and gave an order, and several attendants soon handed over a new knife that had not yet been cut into the hands of Ma De. Ma De slanted the blade on the plane of the whetstone, "brush brush brush", and only sharpened it back and forth a few times, and suddenly the light of the knife shone, and the cold was overwhelming. An attendant pulled Ma De's horse into the hall, and Ma De hesitated for a moment, and with a light knife he chopped off the horse's head.

Seeing this, the merchant said maliciously: "I heard that a really good knife can blow hair and cut hair, I wonder if the sword sharpened with this whetstone has such an effect?" Hearing this, the king waved his head to the beautiful woman, and a servant cut off a lock of her hair with a dagger, and gently blew it on the blade. The hair really split left and right, and even the dagger was "clang" and broke into two pieces. The merchant was stunned.

The king was so happy that he jumped up like a child and said, "I have finally found the real gem!" He twisted his neck and said, "Send the order to sharpen the knife overnight today, and at dawn tomorrow, he will make a long-distance attack on the enemy's camp."

It turned out that the king had a unique vision before he ascended the throne. He found that his weapons were often cut off by the enemy's swords in battle, resulting in defeat. He knew that his country's technology of making swords lagged behind that of the enemy. He heard that there was a whetstone that could upgrade the strength of swords, and he didn't want to say that he was looking for such a whetstone, in case the enemy learned and found the whetstone first. So after ascending the throne, the king pretended to collect gems, but he really found the whetstone hidden in the people.

Because of the strange whetstone, the king formed a commando team with "super swords" overnight to defeat the enemy army and recover the land occupied by his country.

As for the origin of this whetstone, some astronomers later studied that it was a meteorite that fell from the sky, and a meteorite of this texture could only appear once every ten thousand years. Theologians believed that it was not so much that the enemy country was defeated by the whetstone, but by God's will. A small piece of stone thrown by the Creator is better than a thousand sharpeners.