Zhou Xuan returned to the real world and slowly opened his eyes from the bed.

He is now used to this way of traveling through time and can clearly calculate when the "black bead" will be moving, so he can prepare in the bedroom in advance. Otherwise, if he suddenly comes out like this, it will definitely scare many people.

Zhou Xuan sat up, sat on the edge of the bed with a smile and said.

“What will be the reward this time?”

In fact, the gains this time have been quite large, and the storage space has been expanded more than twice as much as before. In normal times, this opportunity will definitely not be available. Only when I met this opportunity this time, I just replaced a person with high power.

Zhou Xuan was slightly stunned and murmured.

"Reward a Qingming Sword?"

Then a sword appeared in his hand.

The scabbard seems to be made of Tangdi wood, and the whole body is black. The decorative handguards, large heads, waist hoops, etc. are all silver-plated and white and bright.

Zhou Xuan pulled out half of the Qingming Sword and made a crisp sound of swords in an instant. The Qingming Sword felt a little cold when held in the palm of his hand, but it seemed that he could feel its uniqueness. This feeling was very wonderful, and it was indeed a "Black Pearl".

He looked at the cool-shaped Qingming Sword and loved it very much. Then he couldn't help but frown and pulled out the sword completely and said to himself.

"Which Qingming Sword is this?"

The Qingming Sword's body emits a faint light, and the blade looks extremely sharp. Its reputation is quite good, and it has its legends in ancient and modern times.

There has been a real Qingming Sword in history. It is said that it began in the Spring and Autumn Period more than 2,000 years ago. It was later lost to the Han Dynasty. It has a long history and has very few records of it.

However, there seem to be three more statements about the origin of the Qingming Sword.

It is said that King Sun Quan of Wu once used his own sword for the fine steel and made into six swords, all of which were named after the texture of the blade face, including: "White Rainbow", "Purple Lightning", "Evil-proof", "Liucheng" (meteor), "Baili" and "Qingming".

Among them, the texture of the "Qingming Sword" seems to be circling with dragons, with its introverted light and slightly dark blue color, which is more favorable.

Another saying is that during the Spring and Autumn Period, Ou Yezi, a famous sword-making craftsman, accidentally discovered the strange stone left by Nuwa to repair the sky, and spent all her life to make the sword, but failed.

Before his death, Ou Yezi's daughter Ming'er couldn't bear to see her father regret, so she resolutely jumped into the furnace. For a moment, flames soared into the sky and the sky was gone. A sword broke through the furnace, and the sword body was green and the cold air was dark. Because Ming'er was wearing green clothes when he jumped on the furnace, he was called Qingming Sword.

The last statement.

In ancient times, Pangu created the world and created this vast universe.

Later, Gonggong knocked down Buzhou Mountain, pierced the sky and disrupted the world.

Fortunately, the goddess Nuwa was able to pick stones to repair the sky, so that the world could be peaceful.

When the goddess Nuwa repaired the sky, she left a few strange stones and abandoned Yu Kunlun Mountain in the wilderness and valley. These strange stones contained the essence of the sun and the moon, the spiritual energy of heaven and earth, and formed their own ability to understand the sky and the earth.

Among them are three stones. When he repaired the sky, he was in the mouth of Nuwa, but he failed to take on the task of repairing the sky.

Nuwa named three strange stones one by one according to their spiritual power, one is called "Majesty", which refers to the supreme power of divine power; one is called wisdom, which refers to the wisdom of heaven and earth; the other is called "Majesty", which refers to the mighty of destroying the heaven and earth.

Time flies, and countless more Jiazis have passed. The "martial arts" transformed into a piece of black iron, and trained the famous sword craftsman Ou Yezi as a famous sword, and was named Qingming.

No matter which statement the Qingming Sword comes from, or it may be that the name coincides with the Qingming Sword, it is still a famous sword.

Zhou Xuan held the Qingming Sword in his hand tightly and carefully observed the texture of the sword. He reached out and bounced it gently on the sword, making a soft sound. He pulled a hair and threw it directly towards the sword blade. As a result, before he could breathe, his hair broke into two pieces when it touched the sword blade.

He smiled happily on his face, looked down at Qingmingjian and said.

"It's indeed a good sword."

The dragon-patterned swords that Zhou Xuan found in the palace treasure house before were only blowing hair and cutting off his hair. Unexpectedly, the Qingming Sword could actually cut off his hair in the air.

Blowing hair and breaking hair is a description of the extremely sharp sword. Putting the hair onto the blade and blowing it with your mouth will break in two pieces. A sword that can reach this sharpness is called a blowing hair and sharp blade. This requires that the blade is extremely sharp and can be achieved with a little external force.

But it is even more difficult to cut hair in the air, and it is a non-blowing version of the hair blowing and hair breaking. You can completely rely on the sharpness of the blade to cut off your hair.

Zhou Xuan turned around and walked towards the safe and took out a South African diamond from it.

He threw the diamond into the air, held the Qingming Sword and swung it quickly. The sword light flashed, and then he heard a "click" sound, and the diamond was cut in half. He took it again, lowered his head and carefully observed the diamond in his palm.

Zhou Xuan looked at the smooth section of the diamond, smiled and nodded and said.

“Not bad.”

As the hardest substance among natural gemstones, diamonds are the highest in the hardness level of gemstones.

The hardness grade standard of gemstone is "Mohs hardness". Ten different natural minerals are used as hardness standards to determine ten hardness grades, from high to low: diamond (diamond): 10; corundum: 9; topaz 8; quartz: 7; feldspar 6; apatite: 5; fluorite: 4; calcite: 3; gypsum: 2; talc: 1.

Generally, the hardness of iron is around 4 to 5, while the hardness of diamond is 10.

Diamonds have very high "brittleness" and can be broken by ordinary hammers. "Hardness" refers to the local extrusion resistance of the material, and brittleness refers to the property of the material that only produces small deformation, namely breakage and failure under the action of external forces (such as stretching, impact, etc.).

The common glass and wooden sticks in daily life are obviously harder than wooden sticks, but using wooden sticks can break the glass. High hardness and high brittleness are two completely different concepts and can exist in the same object at the same time.

Although diamonds have high hardness, they are also "brittle". Therefore, although diamonds have much hardness that are much greater than hammers, they are also more brittle than hammers. Therefore, the hammer can break diamonds.

However, the Qingming Sword did not split the diamonds by relying on the brittleness of the diamonds, but directly carried the hardness to cut it. It can be seen that the sharpness of the Qingming Sword has definitely reached the level of cutting iron like mud.

Zhou Xuan put the diamond back in the safe and then received the Qingming Sword into the storage space. Although the reward was only the Qingming Sword, it was also scratched his itchy place. He also had the kind of love that most men liked swords, so he was very satisfied with the Qingming Sword.

Because the Qingming Sword is a reward item for the "Black Bead", it can also be brought to the crossing world through storage space. Whether in the real world or through the world, it can play a great role. It will be of great help to it in the short term.

Overall, the reward is pretty good.
Chapter completed!