Under the seat of Liao Cheng, a sub-dragon species with a body length of more than thirty meters appeared.

This made Xue Yi a little puzzled, with the wealth of Master Liao Cheng's so many blood crystals, wouldn't it be easy to help Liao Cheng catalyze the dragon into a sub-dragon species?

Xue Yi didn't know that although Liao Cheng's master was a benevolent person, he was extremely strict with his apprentices. He required his disciples to reach the rank of Advanced Dragoon King, which would help catalyze the dragon.

This is also Master Liao Cheng's good intentions: let the apprentices grow up in a difficult environment, so that the achievements in the future will be greater.

Xue Yi's soul moved, and the two hundred meter-long Wind Dragon that had evolved appeared under the seat. Xue Yi said: "Your dragon is slow, sit on mine." ”

When Liao Cheng saw Xue Yi's two-hundred-meter-long wurm species, a trace of envy flashed in his eyes, and he said to Xue Yi: "It turns out that you are a wurm knight. ”

But the envy in his eyes was also fleeting. He still remembered what his master had said when he was getting started, that he had to reach the high-level Dragoon King to use blood crystals to catalyze the throne dragon. He jumped and came to Xue Yi's Wind Dragon.

As soon as Xue Yi's mind moved, the Wind Dragon flew forward.

This is the first time Xue Yi has ridden the Wind Dragon after the Wind Dragon has evolved again. I could only hear the whirring wind in my ears, and the speed of the Wind Dragon had reached an extremely terrifying level.

Liao Cheng was behind Xue Yi, and his eyes were blown away. Although his level was about the same as Xue Yi, his physique was still much worse than Xue Yi's, and now under such a terrifying speed of the Wind Dragon, even if he was the Dragoon King. It's a little unbearable.

He was amazed in his heart, with his Dragoon Knight's physique, he could easily withstand the speed of almost any dragon. Unexpectedly, now on the back of this dragon, his eyes were blown away by the wind.

However, although his eyes could not be opened, his soul could still probe a radius of 100,000 miles. While exploring, he said to Xue Yi: "Turn left in front and go southeast." ”

Xue Yi had no doubts about this, turned the dragon's head, and flew towards the southeast.

Flew southeast for half an hour. Liao Cheng suddenly spoke again: "Turn to the east." ”

Xue Yi turned the dragon head and flew in the direction of due east.

Although Xue Yi's soul probed a radius of millions of miles, he found that there was no danger here. But Xue Yi knew that when the killing dragons gathered together, a kind of energy would be emitted from their bodies, preventing the soul from probing. Even if his soul is stronger now. But they still can't lock down the slaying dragon. And Liao Cheng lives here all year round. He is very familiar with the terrain here, where there is a killing dragon lair, and where is the only way to kill a dragon, he knows it well. Therefore, what Liao Cheng said is very credible.

Of course, Xue Yi did not relax his vigilance because of this, while recovering the consumed dragon power, he kept an eye on his surroundings, ready to fight at any time. With his cautious character. How is it possible to put your life in the hands of a stranger who has just known each other for less than an hour?

After flying for more than two hours, Liao Cheng's face was solemn. said to Xue Yi: "Fly from a high altitude, the higher the better." ”

In fact, this time, there is no need for Liao Cheng to say that Xue Yi has also explored that in the direction of a hundred miles ahead, there is a killing dragon lair.

The lair was on a mountain, and the entire huge mountain was full of killing dragons, and those killing dragons faintly formed a protection for a hole in the mountain. Xue Yi's soul couldn't be found in the cave. When these killing dragons come together, they seem to emit an invisible energy that can prevent human souls from probing.

At this time, Xue Yi saw with his naked eyes that in the sky around that mountain peak, there were as many as a thousand killing dragons flying.

Seeing this, Liao Cheng frowned slightly, and said, "It seems that there is a female dragon to lay eggs, and the male killing dragon has strengthened its vigilance against the sky. ”

Xue Yi groaned slightly, and then understood. Although the slaying dragon is strong, it also has a weakness, and that is aerial combat. Although on the ground, they possess countless strong tentacles, which makes them almost perverted to the point of flexibility, people block killing, and dragons block killing dragons. But in the air, their perverted agility can't be used, and they can only be regarded as slightly more powerful dragons.

So when the female dragon lays eggs, they will strengthen their vigilance against the sky, but the vigilance against the ground is not as strong as the sky, after all, on the ground, they are the kings, so there is no need to be too vigilant at all.

Xue Yi let the Wind Dragon hover in the air, did not speak, but looked at Liao Cheng.

Liao Cheng groaned for a moment and said, "I still know a passage, although there is a certain danger there, but it is easier to pass through than from the sky now." ”

Xue Yi nodded and motioned for Liao Cheng to show the way.

Liao Cheng pointed to a lake about a hundred miles away behind him and said, "Three thousand meters from the bottom of that lake, there is a cave, and that cave will pass under the peak occupied by the killing dragon, and then there will be another exit a hundred miles away on the other side of the mountain. However, with our strength, we can only dive up to two thousand meters at most, and you and I are not water dragon knights, so I am afraid it will be a little difficult to go down. ”

Xue Yi shook his head and patted the Wind Dragon, which flew in the direction of the lake.

At the speed of the Wind Dragon, it took less than two minutes to reach the lake a hundred miles away. Then the Wind Dragon suddenly disappeared, and Xue Yi and Liao Cheng had no strength to lift them, and they both fell towards the lake. Liao Cheng glanced at Xue Yi suspiciously, although they were all dragon riders, and they would not drown if they fell into the water, but with their strength, they couldn't sneak into the hole below, what was Xue Yi doing here?

With two plops, the water splashed, and Xue Yi and Liao Cheng fell into the water.

After Xue Yi fell into the water, he understood why Liao Cheng said that with the strength of their Dragoon King, they couldn't dive three thousand meters underwater. It turned out that the pressure in the water of this Killing Continent was at least ten times stronger than that of the Holy Dragon Continent. With Xue Yi's strength, it would be no problem to dive 20,000 meters in the Holy Dragon Continent, but under the huge pressure in the water of the Killing Continent, it would be more than 2,000 meters at most.

However, Xue Yi was not worried, as soon as his soul moved, the ice and snow dragon had already appeared on his body.

Liao Cheng was startled by the sudden appearance of a snow-white ice and snow dragon. After riding on the back of the ice and snow dragon, he looked at Xue Yi in surprise: "You...... Double Dragon Knight?"

In the Killing Continent, although there are also Double Dragon Knights, it is not common, and among a thousand Dragon Knights, it is good to have a Double Dragon Knight. However, in the Killing Continent, everyone is a dragon knight, and four or five years ago, there were tens of millions of dragon knights on the entire continent, so there were nearly 10,000 double dragon knights. Therefore, although the Double Dragon Knight was rare, almost everyone had seen it, so Liao Cheng recognized it at a glance, and the degree of surprise was far less than that of those people in the Holy Dragon Continent when they saw Xue Yi.

Xue Yi only smiled indifferently and didn't say a word, letting the ice and snow dragon take the two of them and dive towards the center of the lake.

If he said that he had not only two, but five dragons, I don't know how Liao Cheng would feel.

In the water, it is the world of the ice and snow dragon, and he took Liao Cheng and Xue Yi to dive quickly towards the bottom of the lake.

Liao Cheng felt the temperature on the ice and snow dragon at this time, and his heart was even more surprised. This person is not only a double dragon knight, but also a dragon is an ice dragon with water attribute mutation, this kind of ice dragon is extremely rare, and the ice dragon will take a lot of advantage when facing the fire and thunder systems.

Thinking of this, he glanced at Xue Yi deeply. As soon as he saw Xue Yi, he felt that Xue Yi was different from ordinary dragon knights, and as he deepened his understanding of Xue Yi, he felt more and more that Xue Yi was not only different from ordinary dragon knights, but also a world of difference.

Soon, the Ice Dragon led the two to the bottom of the lake. Although the bottom of the lake below three thousand meters was already very dark, with the eyes of the two dragon riders, it would not be affected too much, and they saw that at the bottom of the lake, there was indeed a huge cave with a diameter of more than three hundred meters.

With a flick of its wings, the ice dragon rowed into the cavern and continued upstream along the cavern.

The cave was a slope, rising gradually. After swimming more than 5,000 meters, they finally surfaced. The slope still stretched slowly upward, but the entrance to the cave had shrunk at this time, and the diameter was only a hundred meters, and Xue Yi's dragons could not fly in such a narrow hole.

The two of them jumped out of the water, and Liao Cheng released his dragon, and the two continued to fly forward on the dragon.

Xue Yi looked at Liao Cheng's more than thirty-meter dragon, shook his head and smiled bitterly, sometimes, being big is not necessarily a good thing.

However, Liao Cheng controlled the speed of the dragon, and it was not very fast. Because it is not very safe in this cave, there is a good chance that there will be other dangers.

After flying for half an hour, the cave was still dark and silent, there seemed to be no sound, and there seemed to be no danger for the time being.

However, Xue Yi always had a heavy feeling in his heart, as if something was watching him in the dark.

In this hole, there is not a glimmer of light.

Although Xue Yi and Liao Cheng's eyesight was already very strong, they had to have at least a faint light to see. There was no light source at this point, and they couldn't see.

At this time, Xue Yi took out the dragon yuan, and as soon as the faint light of the dragon yuan appeared, the eyes of the two of them suddenly lit up, and it could be seen that it was at least hundreds of meters.

With this light, the two slowly walked forward. The sense of crisis in Xue Yi's heart always existed, so his soul moved, and he put the set of holy dragon battle armor on his body, which made him feel a little at ease.

After flying for more than 20 minutes, Liao Cheng said to Xue Yi: "Now we are still about fifty miles away from the bottom of the mountain. The female slayer dragon's lair is right above us, so we need to be careful. As long as you pass the lair of the female killing dragon, you will be safer. ”

Xue Yi nodded and did not speak.

But at this moment, on the wall of the cave next to him, a black shadow suddenly jumped out and crashed into the two of them at an extremely fast speed.

Xue Yi was shocked and wanted to dodge, but it was too late. (To be continued......)