When the shadow crashed into Xue Yi and Liao Cheng, it was extremely fast. Xue Yi didn't have time to react at all, and was directly knocked into the air more than twenty meters away, although he was protected by the Holy Dragon Battle Armor, he was not injured this time, but it shocked him in his heart, the speed of that thing was too fast, it was obviously a small killing dragon.

However, what surprised Xue Yi even more was that when the small killing dragon collided just now, when he didn't even have time to react, Liao Cheng easily turned to one side and dodged the killing dragon's attack. This Liao Cheng's speed is even faster than killing dragons.

While Xue Yi was thinking, the black shadow collided towards Liao Cheng again. And Liao Cheng just turned sideways lightly again, and avoided the attack of the killing dragon.

Xue Yi's heart lit up and he understood that this was the so-called "body fast" in the "fast knife".

The fast knife is divided into two parts: "knife fast" and "body fast". Xue Yi can only use the simple "knife fast" at present, and he has not learned the "body fast" yet, although he has also seen the "body fast" learning method in "Fast Knife" before, but it is an extremely difficult skill to master, which requires a subtle footwork, and if this exquisite footwork is not guided, although it can be practiced, it will be much more difficult.

At this time, Xue Yi saw Liao Cheng's body method when he dodged the killing dragon, and he suddenly had a trace of realization in his heart, so he carefully observed Liao Cheng's body method while carefully guarding against the killing dragon.

The killing dragon was dodged by Liao Cheng continuously, and his heart suddenly became angry, his figure flashed, and he rushed towards Liao Cheng again.

Don't underestimate this small killing dragon, although it is only more than five meters long, because of its small size. It's twice as fast and agile as the big slaying dragons.

But no matter how the killing dragon attacked, Liao Cheng only dodged left and right, and then dodged the killing dragon.

The more Xue Yi looked at it, the more transparent his heart became. With his eyesight, he gradually saw some doorways.

However, although Liao Cheng was able to avoid the killing dragon, it was very difficult to kill the killing dragon. He didn't want to make too much noise and wake up the female slayer dragon above, so he couldn't make an ultimate, but if he didn't, he would work on his hands. And they can't kill the dragon. Although he had learned to use a quick knife, it was useless to slash at the slaying dragon. And this juvenile killing dragon lives underground, and its eyes haven't even opened. It acts only by hearing, so it is not enough to pierce its eyes, let alone its ears. Its ears are protected by three layers of scale armor.

This put Liao Cheng in a dilemma.

But soon, the killing dragon saw that it really couldn't hit Liao Cheng. can only vent his anger on Xue Yi. suddenly moved, and rushed towards Xue Yi.

Xue Yi had seen Liao Cheng's footwork just now, and at this time, he had a little experience, and immediately on the side of his body, the front claws of the killing dragon slashed dangerously past his chest. However, Xue Yi didn't just dodge, but while dodging, the scalpel in his hand suddenly flashed out and was suddenly withdrawn.

After that killing dragon pounce. Immediately fell to the ground like a mess of mud, motionless.

Liao Cheng saw this scene. A flash of light flashed in his eyes, and he exclaimed, "Quick knife!"

Xue Yi nodded: "Well, fast knife." ”

Liao Cheng looked at Xue Yi in disbelief. The fast knife is the master's original stunt, he has been following the master before, for hundreds of years, but he has never seen the master teach other people fast knives, and he has never heard the master mention that there are other people who can use fast knives. In other words, except for the disciples of the Crystal Palace, there is no one else who can knife quickly, and this person in front of him can actually knife quickly, how can this be explained?

Xue Yi guessed Liao Cheng's doubts, and said indifferently: "When I was in the Crystal Palace, I saw "Quick Knife", flipped through it at random, and memorized two moves. ”

As a result, Liao Cheng's gaze at Xue Yi flickered even more. Xue Yi said it lightly, but Liao Cheng knew how difficult this fast knife was, he had learned this fast knife for more than ten years, and now this person in front of him only looked at it twice?

He didn't believe it!

Of course he didn't know that Xue Yi had learned the Shadowless Sword Technique, and there were many places in this fast knife that were similar to the Shadowless Sword Technique, so after Xue Yi took a few looks, he was able to use some of them. It's just that he is not very proficient, and he still needs to be honed in actual combat.

However, this was not what surprised Liao Cheng the most, what surprised him the most was that Xue Yi was able to slash and kill the dragon with a quick knife.

You must know that what Shizun wanted to do most back then was to apply the fast knife to the actual battle against the killing dragon. It's a pity that the body of the killing dragon is too hard, and the knife slashing on the body can only leave gradual marks, and it can't hurt its roots, so in the end, this idea can only stay at the idea stage.

And the person in front of him actually applied the fast knife to the actual battle against the killing dragon, this person can be described as a genius.

He didn't know that Xue Yi used to be a ninth-level dragon doctor, dissecting countless dragon bodies, and now facing the killing dragon, he could see the weakness of the killing dragon at a glance, and with the fast knife, he could pierce the gap between the killing dragon's scale armor in a very short period of time and hit its vital point, which would easily kill the killing dragon.

However, after being surprised, he still saw the problem with Xue Yi's fast knife, that is, the footwork was too rusty. He said to Xue Yi: "Your footwork, try to reduce the excess, with the shortest distance, the simplest footwork but change, this is the most elementary body speed." ”

Xue Yi nodded and said, "I've been taught." He secretly remembered Liao Cheng's words just now.

The two continued to walk forward for more than ten minutes, and suddenly, the cave wall next to them was broken again, and another ten-meter-long juvenile killing dragon rushed towards Xue Yi and Liao Cheng.

Liao Cheng stood in front of Xue Yi, and with a slight side of his body, he avoided the killing dragon.

Xue Yi, on the other hand, bent down suddenly, allowing the killing dragon to leap over him. However, at the moment of jumping, Xue Yi's right hand bolted out.

After the dragon leaped, it fell to the ground and never got back up.

Liao Cheng secretly felt a pang in his heart, Xue Yi's footwork was much faster than just now. Moreover, the sword technique of killing the dragon that Xue Yi killed this time was even faster than just now. If Xue Yi's body reached the peak of perfection quickly, then Xue Yi could easily escape even if he was surrounded by the Killing Dragon.

Thinking of this, Liao Cheng urged the dragon to move forward, and said, "Bending down just now can be faster and more natural." ”

Xue Yi remembered Liao Cheng's words again, and the two continued to fly on the dragon.

However, the further the two of them farthered, the more and more juvenile killing dragons popped up from the broken holes in the surrounding cave walls.

Liao Cheng's face was solemn, and he said: "It seems that we came at the wrong time, the eggs of the killing dragons are hatching one after another, we must speed up, if we are trapped in the cave by these juvenile killing dragons, I am afraid that we will not be able to get out in this life." ”

At this time, Liao Cheng didn't care about the killing dragons that popped up from time to time around him, but urged the dragon with all his strength, and the speed was turned on to the maximum. If there was a killing dragon popping out of the cave wall, Liao Cheng could easily dodge it. And Xue Yi is a scalpel that is indestructible, as long as the killing dragon dares to pounce, all of them collapse to the ground and remain motionless after one pounce.

After walking like this for more than 50 miles, the eyes of the two suddenly brightened.

In front of their eyes, an extremely large cave appeared. The diameter of this cave is tens of thousands of meters, and there are countless holes on the four walls of the cave, and Xue Yi is now standing at the entrance of one of the holes. And on the very central ground of the cave, a Killing Dragon King, ten times taller than an ordinary Killing Dragon, was entrenched there, motionless, his belly constantly rising and falling, and a snoring sound came from his nose.

And around it, there were four or five hundred adult killing dragons busy.

When Liao Cheng saw this, his face turned pale, and he said to Xue Yi with his soul: "I didn't expect that the female killing dragon would actually expand his cave tenfold. When I passed by here half a year ago, there was no cave at all, only the passage we are standing on. The breeding of the killing dragon is terrible. ”

Xue Yi didn't speak, his eyes scanned the hundreds of killing dragons in the huge cave and the killing dragon king who was definitely more than two hundred meters long, waiting for Liao Cheng to figure out a way.

In the current situation, once the two of them went out, they would inevitably be surrounded by hundreds of killing dragons, and they would also have to face the killing dragon king who was more than two hundred meters, not counting the thousands of juvenile killing dragons in the surrounding caves. At this time, the two of them really entered the lair of the killing dragon.

Liao Cheng glanced at Xue Yi, there was no panicked look on Xue Yi's face, and he couldn't help but be secretly surprised in his heart. After a while, he gritted his teeth and pointed to Xue Yi at a small hole in the wall of the cave 10,000 meters away on the opposite side, and said, "That hole is the hole that leads to the outside." Wait a minute for me to attract the attention of the Slayer Dragon, and you quickly pass through that hole. ”

Xue Yi turned his head and glanced at Liao Cheng seriously.

Liao Cheng laughed miserably and said, "Don't worry about me, I've broken through hundreds of killing dragons several times in the past two years, and I'm used to it." You go out first, wait for me in that abandoned ancient city a hundred miles away, and I'll come later." ”

Xue Yi pondered for a moment and said, "You...... Be careful. ”

Liao Cheng smiled miserably again, but the next moment a confident look appeared on his face, and he said to Xue Yi: "You have to see it clearly." ”

Before the words fell, his whole person disappeared suddenly, and when he appeared in the next moment, he had already passed through hundreds of killing dragons, and came to the killing dragon king, and a ball of energy in his hand bombarded the killing dragon king's chest, and then his body suddenly disappeared again, and when he appeared, he was already on the edge of the cave wall more than five thousand meters away.

When Xue Yi saw this, his heart was shocked.

This is the effect of practicing the body quickly to the fullest, which can only be described in four words - like a ghost.

Xue Yi knew that Liao Cheng was not teleporting, and even if he was teleporting, there was a momentary pause in between. However, Liao Cheng paused except for the first two times when he deliberately asked the Killing Dragon to pay attention to himself, and then he didn't even pause at all, as long as he wanted, he could make the Killing Dragon not see him at all. Because his speed is so fast, he can't even keep up with his eyes!(To be continued......