In October, Wei Wuxian's ninth-layer Five Elements Recipe had already entered the Great Perfection realm, and as long as there was a foundation building pill, then the foundation could be built immediately. Tsukidan has a price in the Fang market, only occasionally one or two pieces will flow out from the big sects, and they will only be auctioned at auctions, often several or even dozens of immortal cultivation families compete for it, and ordinary monks don't have to think about it.

Zhuji Dan is more difficult to get, but it is not completely hopeless, and what gives Wei Wuxian the most headache is that the main cultivation method after building the foundation has not yet been settled. The Five Elements Technique only reached the ninth layer of the Qi Refining Period, and this set of Recipes was useless further up.

Therefore, Wei Wuxian decided to break into the Rift Valley of the Heavenly Day, and in order to ensure safety, he purchased a batch of elixirs against poisonous insects and a moonstone. Moonstone is a type of fluorite that can emit a shimmer in the dark, and with his eyesight, just a little light is enough to see his surroundings.

Everything was ready, Wei Wuxian came to the pit again, and the feeling of palpitations was still there, but it was much weaker than last time, probably related to the fact that his current cultivation had greatly improved.

There were finger-thick vines on the edge of the deep pit, and Wei Wuxian followed the vines downward, the speed was very slow, and his divine sense kept enveloping the distance of ten zhang in the vicinity. Ten feet away was enough for him to react with his current skills. The poisonous insects nearby sensed Wei Wuxian's coercion and avoided them one after another, and those stupid and stupid insects who didn't move Wei Wuxian were even more fearless, these guys would never be able to break through his protective Yuangang.

The cave was very wet and cold, and gusts of cold wind blew up from below, condensing into mist when it met the hot air above. Wei Wuxian suddenly stopped, his expression a little solemn, not far below him were layers of giant white cobwebs, they were scattered messily around the cave, and going straight down from the cliff wall would inevitably touch them.

The cobwebs are white in fluorescent light. In the shadows of the cobwebs lurk fierce hunters, the kings of this cavern, no poisonous insect can match them.

Wei Wuxian used his divine sense to carefully confirm that there was no mistake, these guys were a low-level spirit worm 'Abyss Black Spider' mentioned in the 'Cordyceps Record'.

The 'Abyssal Black Spider' is an abyssal creature with eight legs the size of a tabletop, and the spider silk it spews out is tougher than steel wire, and it is extremely difficult to get out if it is entangled in it. In addition, their mouthparts were not only poisonous, but also extremely sharp, and they could tear through the Yuan Light Shield of Qi Refining Stage cultivators, which was why Wei Wuxian was so jealous.

According to the 'Cordyceps Record', this kind of poisonous insect with a pitch-black body generally inhabits the depths of the abyss, and lives by hunting other abyssal creatures, and somehow it appears in this cave.

Wei Wuxian unfolded his senses, and found a total of seven 'Abyssal Black Spiders', and those fellows also spotted him, transmitting messages in voices he couldn't understand, and slowly approached him.

There was a touch between the two sides, and at this moment, suddenly there was a rustling sound from the depths of the cave, as if countless ants were moving forward on the dead leaves. The seven abyssal black spiders stopped, then fell backwards, hiding beneath the cobwebs.

Wei Wuxian also stepped back ten zhang away, looking strangely into the depths of the cave, the rustling sound became louder and louder, and then he saw a group of red-headed centipedes crawling up from below, passing through the cobwebs without a trace of hesitation, directly passing from above, only in an instant the top was stained with an unknown amount, and the red-headed centipedes in the back crawled over these companions who were stuck to the cobwebs, and drilled into a hole a foot wide below Wei Wuxian.

Wei Wuxian's scalp tingled at the sight, these guys were about the same as the group of red-headed centipedes he had seen by the stream when he first entered Snake Pan Mountain, they were slightly larger, and their bodies were extremely sinister, and it took them all half an hour to burrow into the hole, leaving only hundreds of companions who were desperately struggling to survive stuck to the cobwebs.

At this time, seven abyssal black spiders hidden in the shadows crawled out, and they began to clean up the red-headed centipedes trapped in the spider webs, and they seemed to be familiar with the habits of this group of red-headed centipedes.

Wei Wuxian took the opportunity to bypass the cobwebs from the side and continued to sneak down, and several abyssal black spiders glanced at him, perhaps they already had enough food, or maybe they were a little jealous of Wei Wuxian's qi, so they ignored him and continued to be busy dealing with the red-headed centipedes in the cobwebs.

After about forty zhang of descent, Wei Wuxian landed on a soft rotten leaf. He looked around and found that there was a passage near the direction of Lingtian, the mouth of the passage was several zhang wide, and on the other side was a narrow valley road, above the valley road was a line of sky, and the sunlight fell from above, and it was full of Bai Sensen's bones.

Wei Wuxian walked to the opposite valley road, the white bones were the same as those in the pit above the fire refining cave, most of them were human bones, and there were a small number of animal bones. Xin Dao: Is this Imperial Weapon Sect a Refining Sect or a Demon Sect, how can there be so many bones?

He checked the human bones in the valley again, without exception, there were no scars, not like they were injured by sharp weapons, they were all intact. Ten Thousand Bone Pits appeared in the Imperial Weapon Sect continuously, what happened back then, what secrets were hidden in it, all of this made him curious.

Coming out of the valley road, Wei Wuxian walked towards the passage leading to Lingtian, hoping to find something in it.

The inside of the passage is as wide as the outside, which can accommodate three or four people at the same time, and the bottom is relatively flat, with obvious artificial traces, and the cold wind blows out from the inside, with a trace of heaven and earth vitality. Wei Wuxian didn't feel surprised, and said in his heart: There should be another exit ahead.

It is more than ten miles long from Lingtian to the Heavenly Rift Valley, and if this passage reaches the bottom of Lingtian, then it will be at least ten miles long, this is not a small project, and the Imperial Weapon Sect has spent so much effort to dig this passage, it must have the value of making its heart move. This is a very simple truth, that ordinary people can think of it, let alone Wei Wuxian.

The thought of something that could make a sect feel excited was exciting, and Wei Wuxian had some guesses in his heart, but he didn't dare to be sure, because it was too appalling.

The fog in the cave was very heavy, and the fluorescence emitted by the moonstone could only illuminate a distance of ten zhang in the passage, and along the way, Wei Wuxian found a lot of rotten wheelbarrows, which confirmed his suspicions even more.

After walking for a while, there was a faint light in front of him, but it was different from what he expected, it was a faint blue light. Wei Wuxian walked a few steps faster, wondering why this was happening.

The blue light was scattered, distributed over the cave wall in front of it, everywhere, and it was less than three miles from the entrance of the passage. Wei Wuxian carefully observed the things on the cave walls, these glowing things were a bit like jade, and the surface was shrouded in a faint mist, which was cold to the bone.

Wei Wuxian couldn't help but say in shock: "How is it possible, it's actually Hanyu!"