As Ji Ru ordered them to go deeper, the mechanism in the tunnel began to gradually decrease, and on the walls on both sides, some mysterious murals began to appear, due to the age, many of the murals have been blurred, and if you look at all the murals together, you can probably know some of the contents.

According to their observations, these murals should have recorded some major events during the life of the owners of the underground palace, and this underground palace seems to be not just a person's mausoleum, but seems to be about a large-scale sect.

Once upon a time, there was a sect that was very powerful, everyone was a high-level refiner, and people from all over the world came to ask for divine weapons, and this sect had an extraordinary status in the martial arts and was admired.

But suddenly a huge humanoid weapon appeared, claiming to be able to dominate the entire Hundred Battles Continent, it may be that this weapon is too rebellious to the sky, provoking the wrath of the sky, so the sky fell thunder, destroying the entire sect, no one survived, some survivors who were lucky enough to go out to escape this catastrophe buried all the treasures of the sect, including the humanoid weapon in this Xiancheng, and never came out again, they also changed their names and surnames, and established another sect, since then this famous sect has disappeared in the long river of history, and no one has mentioned it again.

This made Ji Ruling very curious, he was well-informed, he had seen a lot of good weapons, and even those superb ancient treasure magic weapons didn't dare to say that he would dominate the world after getting them, so what kind of virtue could the so-called humanoid weapons do, and they would provoke the wrath of the heavens.

And this sect seems to be not only proficient in refining weapons, there are countless hidden weapons along the way, and it seems that the mechanism has long been extremely high, there was once such a sect, why is it not recorded in the book, it is really strange, with the attitude of finding out, the four of them continued to walk to the depths of the tunnel.

After walking for a long time, they finally came to the end of this secret passage, but they were greeted by a very heavy iron door, and three swords were inserted in front of them, and there was a sword-shaped groove on the iron door, as if to press one of the three swords into it.

Looking at the gate in front of him, Ji Ruling always felt as if he had a little sense of déjà vu, he and Chu Yunfeng stepped forward to carefully observe the mechanism on the iron door, although it had experienced the erosion of the years, but the iron door was still tightly embedded in the door frame, and not even a piece of paper could be inserted.

Not only that, but this iron gate also has countermeasures, there is only one chance, if you choose the wrong one, or try to force your way in, the iron gate will be completely locked and can no longer be opened, and this entire iron gate is made of the same material as the iron railing just now, which is very strong and cannot be broken at all.

Shi Tian'er and they didn't know how to move, they just picked up the three swords and kept playing with them, "These three swords are the same, how to choose, do you have to gamble on luck to get in?"

Ji Ruling became extremely cautious at this time, he turned out to observe the three swords carefully, the quality of the three swords in front of him is not very good, but they look almost identical, it is difficult to distinguish between good and bad with the naked eye, it is estimated that the person who made this mechanism just wanted to deceive the interloper, so he deliberately made it like this.

But Ji Ruling is a master of swordsmanship, reading countless swords, after closing his eyes and perceiving it with his heart, he immediately divided the good and bad, and picked out the best quality from it, and pressed it in the groove of the iron gate.

"Brother Ji, why did you choose that one, obviously the one on the side is sharper, isn't it" Shi Tian'er asked puzzled.

Ji Ruling went to the other two swords and explained to her, "The sword is not just sharp, you see, although this sword is sharp, it can be blown and broken, but the hardness is not enough" As he spoke, he directly slashed the sword on the iron frame where the sword was placed, and the blade immediately jumped out.

"And this sword, although it is very strong, but it is not flexible enough, and it is easy to break" Ji Ruling did the experiment just now, although the blade did not collapse, but when Ji Ruling bent the sword body hard, the sword jumped into three sections.

"Among these three swords, only the one I chose, the one I chose is moderately rigid and soft, and it is more than sharp, which can be said to be a masterpiece."

Sure enough, the sound of gears turning immediately after the iron gate was heard, and the gate slowly rose up, and they were greeted by another bottomless tunnel.

"Okay, let's go quickly, the people of the Tianwu Hall may find other passages coming in at any time, so let's hurry up", they immediately quickened their pace and ran forward.

After a long time, the same iron gate appeared in front of them as just now, but this time three different grooves appeared on the iron door, and three swords of different shapes appeared in front of them, compared with the one just now, these three swords are of much higher quality.

If you have the same sword, it is more convenient to find a better one in comparison, these swords with different shapes in front of you, if you want to pick out the best quality among them, it is indeed a little difficult, after listening to Ji Ruling's discussion just now, Chu Yunfeng and Shi Tian'er also wanted to find the key to open the iron door, and stared at these three swords for a long time, but in the end, the three of them chose three different swords.

"Brother Ji, who of the three of us chose the right one this time?"

Ji Ruling took their swords and observed them for a while, and couldn't help frowning, "If it's the same, it's better to choose some references, but these three swords are of excellent quality, and the styles are very different, it's hard to say who is good and who is bad, just like Xiao Chu, his body is agile, and he is known for his speed on weekdays, so he chose this lighter sword, and Chi Yu is good at killing because of the relationship between the Emperor Scorpion King, so he chose this one to be thicker and heavier, and with a blood groove, the lethality is more powerful, Shi Tian'er, because of the relationship between the cold ice and dragon flames, you are good at the two attributes of ice and fire, so it is also the most suitable for you to choose this sword that can be split into two swords.

But if you really have to divide the superior, it should be the sword of Chi Yu that is better, the sword you two chose has not been used since it was cast, although it is very well preserved, but it is still almost a little bit of the sword's killing aura, this sword of Chi Yu should have been through a hundred battles, there is already a prototype of the sword spirit, and if you continue to use it, maybe it can become a spiritual weapon."

Everyone suddenly realized, worthy of being a kendo master, the perception of the sword is different, they followed the tunnel in front of them and moved forward for a long time, this time waiting for them is a very huge stone door, this stone gate does not have any mechanism, but depicts a huge formation.

(End of chapter)