Lin Yu touched the walls and found that the four walls were not poured with cement, but contained dark iron, which was extremely hard.

It's hard to scratch through, let alone create a smooth mark so easily.

And many sword marks, which are clearly completed through several changes, are extremely delicate.

I can't help but sigh in my heart, this sword technique can hit such deep traces, it's really powerful!

The core of sendword is the use of qi to control the sword, and the power generated is controlled by qi, but it can hit a sword with more power than holding a sword in your hand!

He had fought with the Second Elder, and although the Second Elder was very proficient in the sword, he did not hold the sword in his hand, and his power was significantly weakened.

It seems that no one in the entire Shushan faction has comprehended the true essence of the ancestors of Shushan.

Lin Yu couldn't get out anyway, so he simply stayed here, calmly observing these sword marks one by one.

When you find a sword mark, you will carefully ponder what kind of sword method and angle you can make such a mark.

And there seems to be a connection between these sword marks.

For example, two sword marks are produced by the same sword.

In this way, Lin Yu could judge the position of the ancient man and the angle of the sword according to the direction.

Time passed quickly, and in this way most of the day passed, and the sun outside had sunk in the west.

A faint moonlight shot into the secret room, but with the refraction of the moonlight on the mirror, Lin Yu could still see these sword marks clearly, and it was not affected much.

Lin Yu tried to stand in the position of the ancients who said war, and wanted to try it.

The first time it failed.

The second time also failed.

The latter series failed dozens of times.

He has no true qi on his body, so he can only use the power of heaven and earth to control the sword.

But the sword either went out crookedly, or it fell to the ground halfway through.

Lin Yu felt that he was completely out of control.

When he was tired, he lay on his head on the ground and began to think.

"How can this sword be controlled freely, the connection in the middle, the speed of flight, how to control it?"

Thinking about it, Lin Yu fell asleep.

"Mr. Lin!!"

While Lin Yu was asleep, a voice sounded outside.

At the same time, the sound of knives and axes was heard.

Rumble!

After more than ten minutes, the boulder where the stone gate had been blocked was pried open and collapsed, revealing the light outside.

"Mr. Lin, thanks to you, you have been able to protect the sword room left by our ancestors."

Lin Yu thought that if he broke into here, the people of Shushan would blame him, but he didn't expect that the second elder still had gratitude on his face.

Presumably, they already know the ins and outs of the whole thing.

He had been in the stone chamber for hours, and no one would have noticed that he could learn anything.

Lin Yu didn't say anything, and left the cave.

Back in the banquet room, the second elder still asked, "Mr. Lin, do you know what that stone room was just now?" ”

"I know, it's the secret room for you to learn swordsmanship in Shushan."

"You have really helped us a lot, if it is destroyed there, the foundation of Shushan will be destroyed, and the sword art will be lost." The second elder said gratefully.

Lin Yu couldn't help frowning, "Could it be that to learn the Imperial Sword Technique, you must enter the stone room?" Can't it be passed on by you people? ”

The Second Elder sighed and said, "Actually, I won't tell you, I've been studying in the stone room for three years, and I haven't comprehended its true essence, including the master, the Great Elder, and some other elders, we actually haven't even mastered a third of the Imperial Sword. ”

"I can see that, too." Lin Yu said directly. "When I fought with you, I found that although your sword was agile and integrated, its swordsmanship was soft and could not kill the real master, compared to those traces in the stone room, it was much worse."

The second elder sighed: "Mr. Lin is really sharp-eyed, just by observing those sword marks, you can see it, the old man admires it."

So, even those of us who don't know much about it, how to pass it on, it's not a mistake, this kind of thing still requires talent.

In our generation, Chen Fan has the highest talent, and he could have shouldered the great cause of preaching in Shushan, but he became an enemy. ”

Lin Yu suddenly remembered those sword marks in the stone room, which were very clearly engraved in his mind, and he said:

"I was locked in the stone room, and I had nothing to do, so I observed these sword marks, and I can see that the sword has changed endlessly, and it is unpredictable, how did this Shushan ancestor manage to control the flying sword like this?"

The second elder laughed hehehe, "Mr. Lin, in fact, the ancients who cultivated in this stone room were not the ancestors of Shushan, and the Shushan Sect was founded for thousands of years, and this swordsman was only more than two hundred years ago.

In fact, the swordsmanship has long been lost, and it is this swordsman who has re-developed the Shushan Supreme Treasure Swordsmanship. ”

"So, is he still alive?" Lin Yu asked.

The second elder shook his head, "No one knows if he is still alive, but more than a hundred years ago, he was already an epic powerhouse, and it would not be strange if he could live." It's just that we don't know what he looks like. ”

Lin Yu thought about it, the old monster who had lived for more than two hundred years, and everyone who knew his appearance was hanging.

"Second Elder, I have a question, just out of my personal interest, I want to communicate with you." Lin Yu said.

"Please."

"What exactly is the use of the sword art to control, is it true qi? But if you use true qi, the sword will not be obedient at all. Lin Yu asked.

The second elder glanced at Lin Yu with a little vigilance, Lin Yu had no true qi on his body, so he didn't have any scruples, and said, "Haha, Mr. Lin, you misunderstood!" Edgeplay is not controlled with true qi! There are many people who have been passed down from the mortal world and use the True Qi Imperial Sword, so after dozens of strokes, the physical strength of the body is overdrawn. ”

Lin Yu nodded, a person's true qi exists in the body, after all, it is limited, and it will be used up sooner or later.

"What is that?"

"Sword Qi! The disciples of our Shushan faction have to practice sword qi since childhood, and we have a swordsmanship, which is specifically to practice sword qi, and the standard for us to select people to enter the stone room is to look at the understanding and control ability of sword qi. Because it's the foundation of practicing Edgeworth! The higher the foundation, the easier it will be to master Edgeworth. ”

I see!

Lin Yu suddenly had a feeling that his mouth was suddenly opened.

Use sword energy to resist the sword!

Sword Qi and True Qi are the same, but they are different.

Sword Qi is born from the combination of True Qi and Sword Slash, and it is not pure True Qi, so it is more easy to control, and the consumption is also small.

True Qi controls the sword, which is naturally relatively easy, and the speed and power will be drastically reduced, as if the sword was just thrown out.

The explosive power of sword qi is stronger, and the way is endless, so using sword qi to resist the sword will produce more changes, and the strength will be guaranteed.

Lin Yu suddenly had a thought in his mind, since the sword qi can resist the sword, what about the sword intent?