(I'm very happy to have a more chapter for book friends, with your support, the plot of "Thief Road" will become more and more exciting!) This book may have been written for a long time, but it certainly won't be a eunuch! In short,When it is not updated, it must be because there is really no empty code word.,Please understand! ）

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"Soon, there will be a few minutes left to draw a rough picture." Takashi Kato said.

It's really thanks to Kato Taka that he thought about it after a few days of meditation, and he actually thought of using this method.

He asked the three people with long mouths to hold the painting silk, using the light as a guide, and then drew it on the white paper on the ground according to the image reflected from the silk silk, so as to get the desired image.

"Since it's all about using light, why don't you just do it under the sun?" I asked, my brain was still a little sluggish, I didn't want to think about it, it must be the sequelae of blood loss!

"Classmate Ouyang, although this painting silk is well-made and well preserved, after all, it is something in the ancient tomb, and the sun has been shining for a long time, I am afraid that there will be some changes, by the way, since you are a student majoring in archaeology, do you know 'the light of seeing the sun'?" Takashi Kato asked as he took out his handkerchief and wiped the sweat from his forehead.

"Dean Kato, what did you say about the bronze mirror known as the Western Han Magic Mirror?" I asked, thinking for a moment.

"Seeing the Light of the Sun" is a bronze mirror of the Western Han Dynasty, which at first glance looks no different from ordinary copper mirrors, and is a kind of "translucent mirror" with an illusion-like effect.

If a beam of sunlight shines on the mirror, after reflection and projection onto the wall, the light spot on the wall will miraculously show the pattern and inscription on the back of the mirror, as if the light passes through the copper mirror, and the back pattern and text are reflected on the wall, so it is called a translucent mirror.

And because there is an inscription on the outside of the pattern on the back of the copper mirror: "Seeing the light of the sun, the world is bright", so the mirror is named "The light of seeing the sun" translucent mirror.

The bronze mirror of this process has been lost to the Song Dynasty (about 1000 AD), and there are tens of thousands of bronze mirrors in the Magic City Museum in China, but there are only four of them with the so-called light transmission phenomenon, and they all appeared in the Han Dynasty.

As a result, the translucent mirror has since been covered with a layer of mystery, and is called the "magic mirror" by foreigners.

For more than 1,000 years, this magical phenomenon has attracted many scholars from ancient and modern China and foreign countries, from Shen Kuo in the Song Dynasty to Zheng Fuguang in the Qing Dynasty, countless scholars around the world are trying to unravel the mystery of the ancient mirror that has plagued the world for thousands of years, but no one can confirm their guesses with experimental methods, or rather, no one can really copy the mirror that is exactly the same as the ancient mirror of the Western Han Dynasty.

It was only more than twenty years ago that our experts solved this mystery.

It turns out that this bronze mirror is very thick where there are inscriptions and patterns, and thinner where there are no inscriptions. Because the thickness is uneven, the copper mirror produces casting stress, and elastic deformation occurs when the mirror is grinded, so the curvature of the thick part is small, and the curvature of the thin part is large.

The difference is so small, as small as a few microns, that it is impossible to detect with the naked eye. The difference in curvature corresponds to the ornamentation, when the light hits the mirror, the reflected light in the place with greater curvature is more dispersed, and the projection is darker; Where the curvature is smaller, the reflected light is more concentrated, and the projection is brighter.

Therefore, we can see from the reflected image that there are brighter handwriting patterns, which are actually the images on the back of the mirror, and from the surface, the copper mirror seems to be really "transparent".

"Hmm, that's right, classmate Ouyang, it's the magic mirror of your country." Takashi Kato said.

"What magic mirror?" The stallion and the long-beaked asked questions at the same time.

After I spent five minutes explaining the information, the stallions and the others were amazed, and at the same time I was shocked that they had come up with the idea of hiding the map in this way.

"Abe Qingming is worthy of the greatest onmyoji in history, and Empress Ruizhen is worthy of being the Ma Ma of Qingming Gong, this painting silk should be completed by the two of them, this kind of means is simply incredible!" I couldn't help but sigh.

"Although the productivity and various smart devices in today's world surpass the ancients, the wisdom of the ancients is not lost to us at all, and I have been emphasizing this, but it is a pity that there are too many ignorant people who disdain the wisdom of the ancients." Takashi Kato said.

"Listen to what you mean, the ancestor of Qingming Gong used the casting principle of the Western Han Dynasty magic mirror on this painting silk? That's awesome! How, exactly? I have a question here, since his old man didn't leave any clues about Xu Fu's tomb everywhere, why did he go to great lengths to hide the map clues in the silk? The stallion asked, using his brain.

"This time, Xiaoma asked correctly, I can only decipher the mystery of this painting, as for the deeper reasons, let Ouyang answer it." Takashi Kato said.

"How did Qingming Gong do it, maybe it is because of the special material of this painting silk, the light transmittance and the copper mirror look not much different, when they painted the silk, by depicting different scenes, they constructed the same thing as the inscription pattern on the bronze mirror of the Western Han Dynasty, artificially simulating the casting stress, but after all, it is not a copper mirror, so it is necessary to use moving lights to keep wandering on it, so as to outline the general graphics through the projected image." I said with a deep groan.

As for why he did this, I think there are two reasons, first, he has lived too long, he is a little bored, he has been to a magical place, and he can't tell the world, so it will be very uncomfortable to hold it in his heart, so he used a vague method to draw the map. Don't look at me with such incredible eyes, no matter how many years you live, how much ability you have, that's a human being, as long as you are a human being, you will have seven emotions and six desires, and I'm just guessing, let me talk about the second point, which is also the most likely point, the reason why Qingming Gong did this is because he believes that only those who can crack this painting silk are qualified to enter Xu Fu's tomb and come out of it alive. I went on to analyze.

"At the end of the ebb and flow of the tide, when the Kong Ming lantern rises, it is the time to enter the ancient tomb." This is a hint given by Abe Harumaki about the specific location of Xu Fuku's tomb, and I don't have a clue about this hint at all, so let's take a look at the map drawn by Kato Taka.

"Whew, I'm so tired, my hands are going to be broken." Big Ears extinguished the lampstand he was holding in his hand, and jumped off the table with Big Ears and Shar Pei, who had quickly put away the silk scrolls.

"Let's look at the map first, and see what the hell is the tomb of Xu Fu, which has not been entered by anyone except Qingming Gong for thousands of years!" Seeing that he could read the map, the stallion yelled and leaned forward.

Even Yue Mingmo couldn't help but step forward and try to take a look at the true face of Lushan hidden in the map of Abe Qingming's silk.

"Don't get too close, just stand outside, if you mess with this map, I don't have any confidence that the silk will be so brightly lit again!" Kato Taka shouted.

"What? Damn, Dean Kato, do you mean that this silk can't be illuminated by strong light for a long time? Dizzy, if we break it, we will definitely be torn by the old man of the Earth Palace. When the stallion heard that the silk was at risk of damage, he was terrified.

"It's the safest option." Takashi Kato said seriously.

"Don't talk about those useless things yet, Dean Kato, we are not familiar with the map of Fuso, so let's take a look at what kind of place this is! By the way, let's open the map of Fuso to compare. I said.

"I'm afraid it's a bit difficult, I can only see that this is a certain area of the map, whether it's a zoomed-in or scaled down map, it's not known, and I need to study it more carefully." Kato said with a frown.

"This place, I look a little familiar." Yue Mingmo, who had been watching from the wall, suddenly said aloud.