Inside the sarcophagus, a palm-sized little turtle with a green glow was lying there motionless, his eyes were also closed, I don't know if it was dead or alive, but with such a vision, obviously this incredible turtle was still alive, seeing this, Yan Lin swallowed his saliva, he was really confused now, what is this thing?

But at this moment, the voice of the system suddenly sounded.

"Ding!"

"Discover the Holy Beast Xuanwu Yuanshen, please kill the host as much as possible, and you will get the Xuanwu Inner Dan!"

"Xuanwu! this is Xuanwu?"

Yan Lin was taken aback, and after reacting, he hurriedly waved the sword in his hand, and this sword was accurately slashed at the little turtle's body, but things were not as Yan Lin imagined, his sword seemed to be cut in the air, without any obstacles, but when he was stunned, something incredible happened.

The green light on the little turtle's body gradually faded, and soon it was already dim, but this was not over, the next moment, the little turtle turned into powder in an instant, and disappeared into the sarcophagus, and what replaced it in that place was a green ball, standing there motionless.

"Ding!"

"Congratulations to the host, you found the Xuanwu Inner Dan, please collect it!"

"It turned out to be really Xuanwu Neidan, great, now the four holy beasts Neidan have gathered, senior brother, the time for them to ascend is not far away" Hearing the sound of the system, Yan Lin's hanging heart finally relaxed, and looked at the Xuanwu Neidan in the sarcophagus, Yan Lin walked to the side of the coffin and picked up Neidan with his hands.

Looking at the Xuanwu Inner Pill in his hand, Yan Lin's brows furrowed slightly, this Xuanwu Inner Pill was unremarkable, I didn't expect it to be a treasure that mortals must take to become immortals, fortunately, I was lucky enough to kill the fire Qilin and get the Qilin Inner Pill to wash the mortal fetus, otherwise, now I really have the idea of swallowing it alone.

"Huh, what is this? Where is the blood?"

Yan Lin stood up in surprise. Just now he was holding the Xuanwu Inner Dan and spinning and playing, who would have thought that there would be a drop of bright red blood sticking to the other side, which looked so sticky that he couldn't shake it off.

"Heh! It's sticky."

Yan Lin flicked it with his hand and couldn't bounce it off, and suddenly became a little curious, however, at this moment, the voice of the system rang out again.

"Ding!"

"Discover the basalt essence blood, this essence blood contains the power of longevity. I hope the host will eat as much as possible!"

"It turned out to be Xuanwu essence blood, how is this possible?"

Hearing the prompt sound of the system, Yan Lin's pupils widened, and he hurriedly looked at the drop of blood on the inner pill, not that he didn't believe it, but it was too incredible, the Xuanwu just now was not a living body, where did it come from? Therefore, the essence blood on this Xuanwu Inner Pill has been preserved?

In fact, Yan Lin didn't know that this essence blood was not what he thought, and the reason why there was a drop of Xuanwu essence blood on the Xuanwu Inner Dan was left. This is because this drop of Xuanwu essence blood is the first drop of essence blood that the little turtle bred before it was completely transformed into an entity by the primordial gods, and only when the essence blood reaches a certain amount, the little turtle can be transformed into an entity just now, as for how much essence blood is needed. No one knows about this, it depends on whether its own bloodline is strong or not, but. Unfortunately, it was directly stabbed to death by Yan Lin, an uncaring guy, with a sword, which can be said to be an extremely unjust death.

Although it is unbelievable, but the information given by the system Yan Lin still believes it very much, since this is the Xuanwu essence blood, how can he not take possession of it, and use his hand to pick up the Xuanwu essence blood on the inner pill, Yan Lin swallowed it in one bite, this kind of treasure, he didn't dare to chew it at all, who knows if the effect of chewing will be greatly reduced, and there are risky things, he never does it.

"Ding!"

"Congratulations to the host, you have taken the creation of heaven and earth, and you have consumed the essence blood of the longest-lived Xuanwu Holy Beast in heaven and earth, and you have obtained a very long life, please keep up the good work!"

"Very long, what is this concept, why is there no clear indication of longevity?"

Yan Lin was slightly stunned, he thought that he could know how many thousands of years he could live, but he didn't expect this to be the result, but although he was a little regretful, he was also very satisfied, it would be good to have something unexpectedly, if he was still eating the bowl and looking at the pot, he would be struck by lightning one day.

Putting the Xuanwu Neidan into his system package, Yan Lin looked at the sarcophagus again, in addition to the Xuanwu Neidan, there was a skeleton in the sarcophagus, this skeleton was already only a bone, not even a strip of cloth, you can imagine how long it has been dead.

The skeleton should be the top ten martial artists, but this doesn't matter, now Yan Lin is staring at a golden book placed under the skull, this book is a bit thick, two palms together are so thick, Yan Lin walked to the side, moved the skull with his hand, picked up the golden book below, patted the dust on it, and the four big characters appeared, it was the Xuanwu Sutra.

"Ding!"

"Congratulations to the host, you have discovered a copy of the Xuanwu True Scripture, which is a complete martial art that records the mortal chapter and the immortal chapter, and it is one of the six great strange books of heaven and earth, may I ask if it is included?"

"Collect!"

Yan Lin said without hesitation, although he knew that he didn't have enough potential points to cultivate, but it didn't take up space, so he affirmed it, the Xuanwu True Scripture is one of the six great strange books of heaven and earth, and it will not be accepted in vain.

After looking at the cultivation conditions of the Xuanwu Sutra, it is the same as 1000 potential points, which is no different from his own Qilin Sutra.

Suddenly, the cave shook for a while, and the surrounding rubble continued to pour down, as if there had been a great earthquake, not only that, but there was also a roaring sound of fierce beasts in the loud noise, and the sound was getting closer and closer.

"Fire Qilin!" Yan Lin's eyes opened, in the Lingyun Cave, only the Fire Qilin could cause such a momentum.

Without hesitation, Yan Lin hurriedly ran towards the entrance of the cave with his sword, but he stopped after only running two steps, and looked at the martial arts of the Xuanwu Sutra engraved on the surrounding rock walls.

The martial arts of the Xuanwu Sutra are very powerful, and they must not be allowed to exist in the mortal world. This was Yan Lin's thoughts.

After scanning around carefully, and finding that there was no more missing, Yan Lin quickly rushed out of the hidden stone room of the top ten martial artists and came to the passage outside, he stood in place and stared closely at the depths ahead, although the front was gloomy, he could feel that the fire qilin was rushing towards him.

Sure enough, as Yan Lin expected, after seven or eight breaths, a strong red light suddenly illuminated the pitch-black area in front of him. There was a corner, and the figure of the fire unicorn could not be seen, but the next moment, almost in the blink of an eye, a huge fiery red monster rushed over, this monster had a horse's mouth, antlers, long beards, and a cow's body, and it was covered in flames, and the scales and armor on its body were one by one. It's like fish scales, dense, and countless.

"Evil beast, let you taste my awesomeness!"

"Aeolian legs!"

Yan Lin burst into tears. Then he flew up, and his two feet kept kicking out a round of Changhong, which was extremely powerful and amazing. In an instant, it bombarded the body of the fire unicorn that was running, "bang!" A wail sounded, and the fire unicorn was instantly knocked out by Changhong's strength.

"Not bad. The Divine Wind Howl I used 800 years of skill to exert failed to kill you, you really deserve to be an ancient divine beast!" Looking at the fire unicorn that fell in the distance, Yan Lin couldn't help but praise from the bottom of his heart.

But Yan Lin didn't expect that at this time, the fire unicorn actually got up, and then he didn't even look at Yan Lin, and ran away directly towards the depths.

"How can it be so easy?" Yan Lin smiled slightly at the corner of his mouth, and instantly turned into an afterimage and chased in the direction ahead.

The speed of the fire unicorn was very fast, but Yan Lin was faster, and it didn't take long for Yan Lin to catch up behind the fire qilin, but Yan Lin didn't make a move, because if he wanted to kill the fire qilin, the fire qilin was already dead before, and the reason why he didn't do it was because he wanted to live the fire qilin and catch the fire qilin as a mount.

After chasing behind the fire unicorn for a while, Yan Lin suddenly felt that something was wrong, the fire unicorn seemed to be taking himself in circles, and he didn't run to a deeper place, and he also noticed that there was a passage where the fire unicorn had not left, and the other passages had turned around and around.

What the hell is going on, is there really something around here that the fire unicorn can't let go?

The more Yan Lin thought about it, the more he felt that it was possible, and secretly thought about it, a smile appeared on his lips, he had already thought of a good idea.

When a man and a beast were about to approach the passage that the fire unicorn had not entered again, Yan Lin directly jumped and slashed, and shouted: "Evil animal, look for death, the sun sets in Huangquan!"

"Boron boron!"

A huge sword qi destroyed the several passages in front of it, and the gravel fell one after another and blocked the direction of progress, the fire qilin was startled, and quickly turned around, wanting to run to the other side, but as soon as it turned around, it immediately stopped its body and roared, because there was already a person standing there, and this person was Yan Lin.

"Now it's up to you where you forgot to run" Yan Lin held the sword and approached the fire qilin step by step, in his opinion, the fire qilin was already in his control, and his god of the wind was not in vain, unless, it entered the passage that had never entered.

"Roar!"

The fire qilin roared unwillingly, and then ran directly into the passage that had not been entered.

Yan Lin was slightly stunned, this fire unicorn was so powerful in human nature, he knew that it was impossible to run out of his encirclement, and he didn't have time to think about it, Yan Lin ran in without hesitation.

"It's so gloomy!" After entering, this was Yan Lin's first feeling.

Originally, it was very dark inside, but there was a fire unicorn in front of the road, and Yan Lin could see the situation in the passage clearly, there was only one road in the passage, and there were no other horizontal intersections, and he chased for some time, suddenly, the fire unicorn roared, and then jumped over, and disappeared at the entrance of the cave in an instant, without the fire unicorn, the passage where Yan Lin was located instantly became pitch black.

"Oh no! there's a pit ahead."

Yan Lin was taken aback, he couldn't have imagined that there was a deep pit in this cave, he didn't have time to think about it, Yan Lin ran a few steps with the distance in his memory, and then learned to jump with the fire unicorn, and instantly walked out of the passage, the reason why he was not afraid of the bottomless pit below was because he was gambling, and the gambling fire unicorn was not willing to commit suicide at all.

In addition to this reason, there is another reason that the time is too urgent, who knows if there is an exit below, this Lingyun Cave is extremely mysterious, I don't know where it is deep, if the fire unicorn runs away, with the nature of the fire unicorn, I am afraid that it will not be with the fire unicorn from now on.

"Fire Qilin!" was still in the air, and Yan Lin instantly saw a ball of fire light below running in one direction, and that direction turned out to be a dragon vein!

The dragon vein is actually the backbone of the emperor, this emperor is not the meaning of the emperor of that dynasty, but the emperor who fought with Chiyou in ancient times.

Yan Lin was not mistaken, the area of this pit is not very large, only two basketball courts are about the same size, and the skeleton sitting on the throne and holding a big sword directly above is the emperor, and the stone tablet next to him is engraved exactly: The emperor's mausoleum. (To be continued......)