It's just that this waterhole is very deep, Chu Nan dived down dozens of meters, and the lack of Xuan power in the Xuan Vein came for a while.

Chu Nan didn't insist anymore, and surfaced, just dealing with those strange monkeys almost consumed the Xuan Power in his body, in this dangerous place, it is better to find a place to recover the Xuan Power first.

Chu Nan dug a hole in the mountain wall behind the waterfall, and began to recover after laying out a simple hidden Xuan Array.

Xuan decided to move, but Chu Nan opened his eyes as a spirit, the Xuan Force is much richer than the outside world, but the problem is that the Xuan Force in the air also contains many other unknown miscellaneous forces, these miscellaneous forces are like heavy metals in the gas, or the kind with hairy edges, after being drawn into the body from the pores of the whole body, there will be an indescribable feeling of swelling and the pain of being pricked by needles.

However, when these Xuan forces gathered in the Chaos Dantian, those miscellaneous forces were removed by the Chaos Dantian, and the remaining trace of pure Xuan Power entered the first Xuan Vein.

This trace of pure Xuan power made Chu Nan a little surprised, because the speed of absorption was even faster than absorbing the best Xuan Jing, there was only one drawback, and the process was a little painful.

"It's painful, but it's still within the range of tolerability, so if you don't try it again, it's really gratifying. Chu Nan said to himself.

Chu Nan sat down cross-legged again, and the Xuan Force, which was fused with many miscellaneous forces, poured into his body again, causing his body to be in sharp pain from head to toe.

But the speed at which the trace of pure Xuan power poured into the first Xuan Vein was also getting faster and faster, which directly made Chu Nan ignore the intense pain.

As time passed, the pain Chu Nan felt became lighter and lighter, and in the end, there was only a little numbness left, and Chu Nan was completely immersed in cultivation.

I don't know how long it took, Chu Nan trembled, and a muffled sound came from his body, and a mysterious force shot out from his body.

Chu Nan opened his eyes, his eyes were filled with joy, and said, "I didn't expect to break through the sixth Xuanqi so quickly, I thought it would take a while." ”

Feeling the fullness and strength of the Xuan Power in his body, he found that the flesh and bones of his body had also changed, the skin was tighter and more elastic, the muscles were full of toughness, the blood flow was surging and powerful, and the bones were also strengthened a lot.

Chu Nan came out of the cave, and a fierce man plunged into a deep pool of water and began to dive down.

This time, Chu Nan didn't have much effort to withstand the water pressure and came to the bottom of the deep pool.

A dazzling light at the bottom of the pool illuminated the dark water, Chu Nan was surprised to hold a stone pillar that stretched out from the bottom of the pool, and found that these dazzling lights at the bottom of the pool were all emitted by pieces of the best Xuanjing, each of these superb Xuanjing has the size of a head, it is really incredible, in the outside world, the standard size of the best Xuanjing is the size of a baby's fist, the bigger it is, the more valuable it is.

Chu Nan picked up a piece of the best Xuanjing, and pulled it twice in the mud and sand at the bottom of the pool, and found that there was a hard rock layer underneath.

He looked around, and found a little light in the mud and sand not far away, which would be overshadowed by this dazzling light if he didn't look closely, but he found that this light was a little different, for its light was very soft and mysterious.

Chu Nan kicked his legs and dived over, picking up the surface layer of sediment, and suddenly, a crystal-like leaf was exposed, and when he touched it with his finger, there were ripples in the leaves.

"Could it be the seven-grade elixir crystal marrow grass...... Chu Nan opened his mouth wide, and the pool of water was suddenly poured in, and he reacted and closed his mouth, but the action of pulling the mud and sand under his hand became more and more gentle.

Soon, a crystal clear, one-foot-tall dream plant was fully revealed.

"There will be no mistake, this is definitely the Seven Rank Crystal Essence Grass. "Chu Nan is extremely excited, this is the main medicine of the seven-grade Xuan Elixir Jing Yu for the pith potion, according to legend, the Xuan cultivator who cultivates the king will stop here for life when he reaches the realm of the ninth-level Xuan King, and he will be depressed for the rest of his life, as if a beautiful woman who has stripped naked in front of you is making a gesture to you, at your mercy, but you just can't get hard. Unless they take the Crystal Jade Replacement Elixir, they will be able to break the shackles and break through the restrictions of the Xuan Decision, so that they will have the opportunity to step into the realm of the Xuan Emperor.

"Haha, Lao Tzu has no worries about food and clothing in this life. Chu Nan laughed in his heart, digging up this kind of heavenly treasure type elixir requires special methods and special preservation, but it is not a problem for him.

Chu Nan carefully dug out this seven-rank crystal marrow grass and stored it in a special box.

But at this moment, Chu Nan suddenly noticed a slight vibration coming from the bottom of the waterhole, and when he looked back, he saw that the mud and sand under the waterhole behind him were surging upward, and the stone pillar he had held on to was also rising.

Chu Nan's heart jumped, how dare he stay any longer, and swim towards the waterhole like an arrow from the string.

"Boom"

A huge head was lifted from the mud and sand, looking like a dragon head carved out of a stone, and the thing that Chu Nan had originally regarded as a stone pillar turned out to be the horn on the top of its head.

A pair of brown eyes swept over the place where the seven-rank crystal marrow grass had grown, and when it realized that the thing it was guarding was missing, it immediately became furious.

"Roaring ......"

The stone dragon completely broke out of the mud and sand at the bottom of the pool, its body was ten meters long, and its belly had four pairs of claws, and its whole body looked like it was carved from stone, but it was very flexible when it moved.

Chu Nan's speed in the water was very fast, but this stone dragon was obviously faster, and he broke through the water in an instant and chased after him.

"What a monster this is. Chu Nan turned his head and looked at it, and his heart was stunned.

At this moment, Chu Nan saw that the stone dragon opened his mouth, his scalp suddenly exploded, his body was stiff, and he slammed his palm into the air, causing the force of the shock to roll over a few times.

A column of water passed by like electricity, Chu Nan snorted in the water, and the huge force shook his chest and abdomen, making his five organs agitate, and almost spurting out a mouthful of old blood, fortunately he wore the Qingyun inner armor given by Dean Qu, otherwise his internal organs would definitely be damaged.

Barely dodging a blow, the stone dragon immediately opened its mouth, and three more jets of water shot out of its mouth.

Chu Nan spit out a mouthful of bloody blisters, desperately agitated the mysterious power in his body, forcibly used the Chu clan to change direction in the water, and conjured up a phantom, which instantly appeared on the top of the stone dragon's head.

"Kill!"

Chu Nan roared wildly in his heart, holding the firewood knife in both hands and slashing at Shi Long's head.

At this moment, Chu Nan suddenly sensed the fluctuations of the Xuan Array in the firewood knife, and his Xuan Power was connected to the prismatic crystal space through the passage Xuan Array.

With a muffled sound of "bang", the firewood knife exuded a faint ghostly light, and the killing knife method he split suddenly increased greatly, and the stone chips splashed on the head of the stone, cutting a deep hole, and the firewood knife was also stuck on it, and there was a trace of blood oozing out at the knife edge.

The stone dragon was ferocious under the injury, and its huge body stirred on the waterhole.