Professor Liu somehow acquired a palm-sized box, black and stone, but with a metallic luster, more like it was made of meteorite, and this box is relatively old, at least a thousand years old.

Professor Liu said that this is a box, but this thing looks like a solid square, because although this thing is small, it weighs ten catties, and there are no gaps except for many strange patterns engraved on the outside, but Professor Liu firmly believes that this is a box, but he has never found the right way to open it, as for the weight, it should be caused by the excessive density of the material used to make the box.

As for the strange pattern, Professor Liu has been researching, and this pattern resembles a character and a picture, but it is certain that it is not a hieroglyphic oracle bone inscription.

In order to study the patterns, Professor Liu deliberately expanded them, and found that the patterns of the six sides were connected in a certain order, and they actually looked like a map.

In fact, it was not discovered at first.

Professor Liu researched the pattern separately after expanding the pattern, rummaged through many ancient documents, looked for contemporary graphic representation methods, and finally found it in the literature of a small frontier country.

Professor Liu found that each of these patterns seemed to represent mountains, water, trees, etc., and there were lines connecting them, so he tried to stitch together the six drawings and found the corresponding locations in the literature, and found that they were indeed maps.

Professor Liu speculated that the location pointed to by the map must have something to do with the country that inexplicably disappeared in history.

And the last remaining bit of literature in this country mentions a legend:

After Pangu opened the heavens and split the earth, Nuwa created people, Fuxi was in peace, and the clansmen of Nuwa and Fuxi also took on the responsibility of guarding everything in the world.

Nuwa and Fuxi sealed the power of guardianship together to a hidden place, used a treasure box as a key, and handed over the treasure box to future generations to inherit and guard, and worship it for generations.

And the people of this small country can see from the literature that they regard themselves as the descendants of Nuwa and Fuxi, guarding the treasure box, and threatening that if anyone opens the treasure box, Shou (the name of this small country) will present the treasure as a token of gratitude.

Professor Liu was originally obsessed with the study of archaeology, and after seeing this country, he began to study it, and together with the treasure box and legends, it strengthened his determination to research.

So I decided to find some people to follow the map together to find information and study this small country. And Liu Xin felt that this kind of unknown thing was dangerous, and her father was old, so he really shouldn't take the risk, but he couldn't dissuade him, and he was worried about it.

After hearing this, Lin Xi was thinking, how could this thing sound so mysterious, and couldn't help but think of some novels about tomb robbing and treasure hunting, which were full of all kinds of demons and monsters, Lin Xi couldn't help but sneer, it wouldn't be so.

Lin Xi sorted out his thoughts, and then asked the proprietress, "Why is your father so sure that the cube is a box?" I remember you saying that there was no way to prove it, it couldn't be opened, and no gaps or interfaces were found. ”

"Because it's hollow, and it's certain that there's something in it." Liu Xin said with a shaking motion.

Lin Xi continued: "Since the prevention is ineffective, then one is to find someone to protect him, and the other is for you to follow." ”

"No, my father knows that he is in danger, so he won't let me go with him."