Mountains and rivers depend on each other, the earth's veins are lucky, and the heavens are together. A man's life is not his own choice, but he changes because of himself.

Yixing and his party walked along the small river, and after walking for a long time, they came to the front of the so-called gate. People in the world are always skeptical, and they always have some doubts about what others say, not what they see, even if they know that the other party will not lie to him. However, after seeing this miracle, this group finally surrendered under the skills of the ancients.

Everyone's expressions are different, but the same is surprise. After a long silence, someone finally spoke.

"I thought there would be some deviations in what Bai Kun said, after all, what he said was too surprising. Who knows, this is still conservative talk. I really didn't expect that the technology of the ancients had reached such a high level. Li Yi sighed, and the rest of the people also agreed.

"It's really amazing."

"Is this true?"

"We were the first to open this door."

……

Yixing listened to the people around him talking incessantly, while he and the other two members of the heart were carefully examining the giant door. It is not an exaggeration to call it a giant gate, it is too huge, it is nine meters high, about six meters wide, the color is blue, and there are many floating texts, mountains, birds and beasts, etc., and there are many creatures that have never been seen before. However, the color of this door is too weird, most of the underground doors in ancient times are stone doors, because the materials are convenient, the price is slightly lower, and the rest have metal doors, mostly copper doors, and iron doors are also very few. However, the giant blue-blue door in front of him reflected a metallic luster. But in the known information, no one has mentioned this blue gate, at least, Yixing can't tell what kind of gate it is. And he stood at this door, and couldn't help but feel a little depressed, and after a while, he looked at Quebai and Wenqi, and signaled whether the two of them knew. Just then, a voice rang out.

"This, this, is that kind of metal?" Ao Tao suddenly thought of something and cried out in surprise.

After welcoming everyone's eyes, Ao Tao also felt a little out of shape, coughed lightly, and then said: "I'm sorry, I really didn't expect this thing to exist, but it's not necessarily, it just looks a little similar." ”

"Lao Ao, you said so much, what the hell is this, I have to make it clear to everyone." Li Yi asked happily, after all, it is better for someone to know the best, than not to know anything.

"This, speaking of which, I also knew from the tomb of an ancient man when I was in archaeology." As he spoke, Ao Tao thought for a while, organized his language, and then continued: "There are many well-preserved books in his tomb, but these books are not made of paper, but metal, otherwise they would not have been well preserved for so long. What is the name, I can't remember it for a while, but there is a note about various rare metals, 'In ancient times, there were great immortals, who went down to earth, encountered a stone in the way, and then walked away, frightened, and lost all their mana. And there is a metal called 'dispersion' in this stone, the color is dark blue, and then according to the quality of the arrangement, the blue gradually fades. Later, during the period when alchemy was in full swing, this metal was even more difficult to find, and it was a good material for Dan furnaces. In the late Ming Dynasty, this metal is not remembered, I don't know why, and it is rarely even circulated among the people. And this metal is also very easy to distinguish, smeared with blood, the blood turns blue. However, I only thought of it suddenly, and this description is a bit exaggerated. After saying a lot of words, Ao Tao looked at everyone, and at this time everyone was very tacitly quiet, presumably everyone had a plan.

After a long silence, Yixing spoke, "Professor Ao, are you sure this could be that kind of metal?" After listening to Ao Tao's description, Yixing immediately thought of the value, and at this time, Li Yi's face also changed slightly, but then it was well concealed, and no one noticed it. Finally, Yixing said, "Why don't you try it with my blood." ”

"No, absolutely not." Before anyone else could speak, Quebai and Wen Qi all spoke out to stop them.

"We don't know what this door does at all. If you do it rashly, it is very likely that certain prohibitions will be opened, and you will not be aware of the dangers of these places if you do not engage in this. Curses, viruses, and so on are all possible. After speaking, Magpie Bai fell silent.

Wen Qi received it again with a tacit understanding, "Do you remember the discovery of the 'angel' that time?" We are because one person accidentally knocked out a little blood, which caused a lot of casualties. ”

After listening to what they said, everyone was silent, Li Yi and his group had no right to speak, and Yixing also thought of something and fell silent.

After half a moment, it was Li Yi who took the lead in breaking the silence, "We don't need to think about these things yet, and we are still not sure whether to open this door, so let's go outside and investigate it now." ”

After listening to Li Yi's words, as for the people on his side, they naturally have no opinion, and they need to be careful when excavating this matter. Yixing also replied.

After two hours of investigation, everyone was a little disappointed when it was determined that there was nothing of value outside the giant gate except for the small river.

"Did you find anything?"

"Nope."

"What about you?"

"Not either."

……

"Okay."

"Since everyone hasn't found out, let's go back to the top to rest first, and then make arrangements."

"Okay." This time there really was no one who had an opinion.

Time passed, and when Yixing and his party returned to the ground, it was already night, and the sky here was very beautiful, with stars twinkling all over the sky.

However, no one knew that just after they left, the uneventful river fluctuated, but then it lay dormant quietly as usual.