The cave is not deep, about only more than a zhang, surrounded by purple-black rocks, exuding a rich demonic aura and a faint purple-black halo, but there is no imaginary darkness.

After falling to the ground, Lu Kun looked around.

In front of his eyes, there was a closed cave, about ten zhang long and wide, surrounded by walls composed of purple-black rocks, and the entire cave exuded a purple-black dark light.

The most striking thing is the four black pillars of light in the center, each of which has a diameter of one zhang and is exactly the same size, but the difference is that the thickness of the spiritual light on it is different.

From left to right, the aura of the black pillar of light became thicker and thicker, and the aura emanating from it became more and more amazing.

The leftmost pillar of light, Lu Kun could easily perceive, revealing the fluctuation of the aura in the early stage of foundation building, and to the right was the early stage of the Yudan, and the aura of the two pillars of light on the far right was unfathomable, and nine times out of ten they were at the level above the Yuan Infant Stage.

Because he had communicated with Xu Zihang before, Lu Kun knew very well the role of the four pillars of light.

Each pillar of light corresponds to a different number of layers of the Blood Demon Cave, and Lu Kun is now going to enter the leftmost pillar of light.

Before coming, Lu Kun specially dispersed the mana of the internal organs just in case, because the function of the pillar of light is to test the mana in the body, and only if the mana meets the requirements, can it enter it.

Lu Kun carefully observed the four pillars of light, and the ground and the rocks on the top were arranged with complex prohibitions, and it was these prohibitions that maintained the four pillars of light.

"The pillar of light is full of magical power, and it seems to rely on the demonic energy here. ”

"Although there is no reaction from the muscles and nerves in my body, I may not be able to say that there is a more powerful Yuan Infant Stage Cultivator secretly observing, and my current physical body may not be able to perceive the divine consciousness above the middle Yuan Infant Stage. ”

Lu Kun walked directly to the black pillar on the left, took a deep breath, activated all the initial mana in the muscles, and walked in.

At this moment, Lu Kun felt a special magic power fluctuation sweeping his whole body, repulsing the body, but after encountering the mana fluctuation on his body, the resistance disappeared, allowing Lu Kun to walk in smoothly.

Only then did he put his mind at ease, the realm of the Bone Treasure Period was very different from that of traditional immortal cultivators, and there was no Jin Dan in his body, so this pillar of light would naturally not think that Lu Kun was a cultivator of the Jie Dan Period.

Inside the pillar of light was a magic circle that flashed with spiritual light, connecting the surrounding black pillars of spiritual light, and at the front of this magic circle, there was a square depression, exactly the same size as the Blood Refining Sect token.

Lu Kun took out the sect token on his waist, inlaid it on it, and then injected mana into the token, and soon the entire magic circle lit up.

"The Blood Refining Sect is really cautious in its defense in the Blood Demon Cave, not to mention the many prohibitions outside, the mana must also meet the requirements, and this teleportation circle must be activated with a sect token. ”

"In addition to deducting my contribution points, the old man in the late stage of the Yudan just outside also set up a temporary magic power inside the token, which is also the key to opening the teleportation array. ”

Lu Kun put away the token, walked into the teleportation circle, and was teleported out in a spiritual light.

......

Shaking his head, Lu Kun appeared in a new place, he stepped down from the teleportation circle, and vaguely felt that he had not teleported too far, it was likely to be under the cave just now.

"In front of you is the guardian monster. ”

Ten zhang in front of the teleportation circle, there was a stone gate with a layer of prohibition on it, and in front of the stone gate, there was a huge demon snake.

This demon snake was covered with faint black scales, and its whole body exuded a rather strong magical aura, and the depth felt similar to that of an ordinary second-level peak demon beast.

"I thought Xu Zihang was joking, but I didn't expect it to be a demonic beast, and I don't know where the Blood Refining Sect got the means to cultivate a demonic beast, Xu Zihang encountered a demon wolf, and my current one is a demon snake. ”

When Lu Kun learned about the situation of the Blood Demon Cave from Fang Zheng's mouth, the other party didn't make it clear, but Xu Zihang informed Lu Kun of the information about the Demon Beast.

At the beginning, Xu Zihang relied on the magic talent of the dark spirit root to pass this level, and if he cast the spell with the dark spirit root, in such an area with strong demonic energy, he would not be hindered by the casting of spells, and some spells were somewhat enhanced.

But if other foundation building period cultivators, without cultivating demonic skills, their strength in the demonic qi area is greatly reduced, plus the strength of the demonic beasts is stronger than the demon beasts of the same level, it is even more like a fish in water here, and it will be difficult to pass this level alone.

Lu Kun walked forward slowly, with words in his mouth, his hands gradually flashed two electric lights, and this demon snake immediately raised its head when Lu Kun was within ten zhang of Lu Kun, making a "hiss" sound, and then the black light flashed and rushed over.

The two thick electric lights in Lu Kun's hands were thrown out, and they instantly turned into two power grids, enveloping the area five or six feet in front of him.

This is the Thunder Net Technique that he had just cultivated in the Blood Refining Sect.

As soon as the Thunder Net Technique was thrown, a huge black snake shadow was enveloped inside, and this demon snake was trapped by the Thunder Net Technique for a while, and its body twisted and tried to struggle away.

Lu Kun's face was serious, his hands were closed, the mana on his body surged, and the two thunder net techniques fused together, and the power of restraint increased greatly.

But the demon snake also had a surging magic power, and under the erosion of the magic power, the thunder net melted at a speed visible to the naked eye, and the demon snake's range of activity became larger and larger.

Lu Kun took this opportunity to take out eight purple talismans at once, and hit the demon snake that was about to get out of trouble in front of him, these talismans instantly turned into eight thunder arrows, connected in a line, and shot away at the seven inches of the demon snake.

This is an intermediate primary-level thunder attribute spell, Thunder Light Arrow, as a thunder attribute spell, the power is no less than that of ordinary middle-level intermediate spells, but unfortunately in the demonic energy area, the power has decreased.

With a "boom", the Thunder Net Technique shattered at this moment, and the Demon Snake resumed its action, and the thick snake tail flicked towards the eight Thunder Light Arrows.

Lu Kun seemed to have expected it, and with a twist of his hands, the eight thunder light arrows seemed to be pulled, and instantly synthesized a purple light dazzling electric arrow, and his power increased dramatically, almost approaching the level of intermediate and high-level spells.

With a "crackling" sound, most of the magic power on the tail of the demon snake was scattered, and cracks appeared on the black scales.

After the demon snake was injured, it was extremely angry, its body writhed, and its speed increased dramatically, and it was still more than a zhang away from Lu Kun.

Lu Kun took out five more talismans and threw them out, and five layers of thunder net techniques appeared in front of him, and then he used the same control method to make the thunder net technique superimposed.

"呲呲"

This time, the power of the Thunder Net Technique increased greatly, enveloping the enraged Demon Snake to death.

Lu Kun didn't stop, and took out sixteen thunder light arrow runes, he was sweating profusely, his divine sense fluctuated violently, and he cast a certain spell with great difficulty, and then played these sixteen spirit runes.

The sixteen thunder arrows actually merged directly together, forming an unstable inch-long electric arrow, and the dim cave was filled with purple halos for a while.

With the sound of thunder, the miniature electric arrow directly bombarded the seven inches of the demon snake.

Although the Demon Snake's defense is not weak, the seven inches are the key point after all, and Lu Kun combined the sixteen thunder light arrows, and the power skyrocketed, and this blow easily broke the Demon Snake's seven-inch defense.

The thunder exploded, and the head of the demon snake fluttered and fell to the ground.

Lu Kun exhaled, showing a look of relief, and immediately sat cross-legged, took out a few spirit stones and began to recover.

"It's really tiring to act, I hope there is really a Blood Refining Sect cultivator secretly observing, otherwise I will waste all my thoughts. ”

After a few hours, after the mana in Lu Kun's body had recovered a lot, he didn't move the corpse of the demon snake and walked straight to the stone gate.