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Since officials at all levels in the Eastern Han Dynasty were not allowed to leave their fiefdoms without the emperor's order or the summons of their superiors, Lu Bu, Li Su and their group of more than 20 people had to disguise themselves as merchants transporting glass products along the way.

During this trip, in addition to the general glass products, Lu Bu also specially prepared some glass beads (Lu Bu also planned to later make the kind of rubber-made elastic night-shining pearls, just like the Dragon Pearls in the Grave Robbers' Chronicles). In the process of producing glass beads, fluorescent powder and luminous powder were added. Such products will shine brightly in the dark night, dazzling and comparable to the "night-shining pearls".

Night-shining pearls were a rare gem in ancient times, and were called by many names, such as "suizhu", "xuanzhu", "chuiji", "mingyuezhu", etc. To put it simply, the night-shining pearls in ancient times were actually fluorite, because among the gems that the ancients were able to mine, only fluorite had the characteristic of absorbing sunlight and then emitting light on its own. The content of fluorite in geological reserves is relatively high, and it is not a very precious gem resource at all. It is usually a fluorite mineral containing rare earth elements, which is actually what is commonly called fluorescent stone or night-shining stone in modern times, or fluorite for short.

It is said that some luminous substances in the earth's crust have been formed over tens of millions of years, from the initial volcanic magma eruption to the later geological movement, and gathered in the ore. The stones containing these luminous rare elements, after artificial processing, became what the ancients called night pearls. They have various colors such as yellow-green, light blue, orange-red, etc. When the fluorescent stone is placed under the light, it will emit beautiful fluorescence in the dark night.

Therefore, in the description of the ancients, "night pearls" are natural, self-luminous jewels that can be clearly seen by the human eye in the dark. Of course, natural night pearls were extremely rare in ancient times, and were more often seen in myths and legends.

Since this rare gem can emit light on its own for a certain period of time and is usually clearly visible at night or in the dark, it has been regarded as a precious ornament in history and is often used to make jewelry and ornaments. It has a long history and was regarded as a rare treasure as early as the Spring and Autumn Period and the Warring States Period. In addition, although the brilliance of the night pearl is not very bright, it is still regarded as a rare treasure and night lighting tool in the homes of the ancient nobles.

Lu Bu also wanted to use the night-shining pearls he produced to accumulate a large amount of wealth for military supplies in a short period of time, so he had been thinking about how to operate this product so that he could launch it without risk. However, he had no capable counselors and management personnel available, and if he personally operated it, it would inevitably leave room for gossip, so he had to put it on hold for the time being.

On this day, more than 20 people finally arrived safely at Guan Yu’s hometown, Jie County, Hedong County (now Jiezhou Town, Yanhu District, Yuncheng City, Shanxi Province), and checked into the largest Yuelai Inn in the city.

Lu Bu arranged for Li Su and twenty personal guards to act separately to inquire about any relevant information about Guan Yu, and then meet again at Yuelai Inn in the evening to summarize the information.

After Li Su and his personal guards set off, Lu Bu, because Liu Yuan in his previous life had been to Guan Gong's hometown and remembered the address of Guan Gong's hometown, used the barrier-free communication skills of the space-time router system to bribe a group of sparrows with a 20-jin bag of millet. He first asked about the specific location of the treasure pool in Changping Village, Xiguan, and the business address of the local jewelers, and then asked them to go to the surrounding areas to inquire about various news about Guan Yu.

Lu Bu rode on his Red Hare and went to Changping Village, Xiguan, Jiezhou.