Yinfeng Canyon is trending from north to south, winding for more than 2,000 miles, and the mysterious cave that Lao Hei said is located in the depth of the southern region. The position where Su Che was at the moment was still more than five hundred miles away.

Now, Su Che is already a fourth-level Qi cultivator, and staying in the Yin Wind Canyon for a long time is a prohibited behavior. However, the 'Soul Concealing Technique' that he had just learned came in handy, casually imitating the fluctuations of the spiritual power of a prisoner in the Immortal Prison who practiced the third layer of Qi, and I believe that monks below the foundation building period would definitely not be able to see the flaws.

It took more than an hour to reach the destination, and the old black conjured the form of the 'Rat Emperor' to send out a spiritual summon, and soon, a black-haired Rat King came out of the cave not far away, and this area was the territory occupied by its clan.

Under the leadership of this rat king, Su Che and Lao Hei first got into a very inconspicuous small hole, and just a distance inside, Su Che needed to kneel on the ground and crawl like a beast. There are so many caves like cattle in the canyon, and generally speaking, they are not paid attention to by the experienced Tianxuan Sect disciples and scattered cultivators who come here.

After climbing about 20 zhang, the tunnel was much wider, and Su Che was able to stand up and walk normally.

The trend of the tunnel is downward slope, gradually going deep into the ground, zigzag for a long time, still looking bottomless.

"Almost a thousand feet, right?"

Su Che silently calculated in his heart, this tunnel reminded him of the secret medicine garden of Xuanji Peak, and it was also more than a thousand zhang deep into the belly of the mountain.

However, as he gradually deepened, Su Che realized that more than 1,000 zhang was really nothing, and after walking several more than 1,000 zhang, the black-haired rat king who led the way in front of him was still running fast, and he had no intention of stopping at all.

"It's deep enough!"

Lao Hei sensed Su Che's thoughts, and replied with a smile: "It's nothing, the deep one is still to come!"

Keep walking, still walking......

To what extent he had gone deep into the ground, Su Che couldn't figure it out, so he could only estimate it by time, and at the current speed, he had walked for two quarters of an hour, at least forty miles.

Finally, the black-haired rat king stopped, turned his head, and chirped at the rat emperor conjured up by Lao Hei, and Lao Hei relayed: "This rat king said that if it goes any further, it will not dare to go deeper, because there is a very powerful red-tailed fox inside, which can be called the super nemesis of the Yin Wind Rat, and for many years, it has hunted and killed I don't know how many Yin Wind Rats." ”

"Then let it go back, and let's explore it ourselves. "It's just a red-tailed fox, and Su Che doesn't care too much.

Lao Hei could sense Su Che's thoughts, and reminded with a smile: "Master, this red-tailed fox is not ordinary, think about it, the Rat King is already the strength of the third layer of Qi training, and its entire clan has nothing to do with this red-tailed fox, then, the strength of this fox ......"

"Oh?" Su Che wondered, "Didn't you say that there were no mid-level demon beasts in the Yin Wind Canyon, how could that red-tailed fox be so powerful?"

"That's the most interesting thing about the caves. Lao Hei replied: "There is obviously a demon beast hidden that surpasses the strength of the third layer of Qi training, and even Tianxuanzong knows nothing about it. ”

"Well, I've come here, and I'm going to find out. ”

For this kind of mysterious thing, Su Che has developed a high desire to explore, because exploring this kind of thing can often bring a lot of gains. In the cultivation realm, this is called a person's 'good fortune'.

Next, the black-haired Rat King chirped twice, and ran away along the same road, and the image of the Rat King that Lao Hei had conjured up also returned to the Immortal Prison, which became Su Che alone and continued to march into the depths of the cave.

There is no light in the cave, and the human eye is completely invisible, but Su Che has long been accustomed to moving forward with the help of Lao Hei's detection ability, and he can run all the way with his eyes closed.

Still going deep into the ground at an angle, zigzag, and walking for a long time, Su Che suddenly stopped his steps.

Because, Su Che could see with the naked eye that a small red dot appeared in front of the tunnel, and he clearly felt a stream of heat rushing towards him, and the temperature suddenly rose countless times, as if a person had accidentally fallen into a boiling hot pool.

"It's still normal just now, how can it increase so much all of a sudden?"

With suspicion, Su Che took a dozen steps back, and suddenly all of a sudden, the oncoming heat disappeared, and the surrounding temperature became cool again.

What's going on?

Su Che tried back and forth several times, and then determined that there was an invisible barrier that could not be seen or touched in this position, like a transparent diaphragm, blocking the heat flow in front of him, and only by stepping over this diaphragm could he feel a huge change in temperature.

"Is it an artificial barrier, or is it a natural barrier? How can such a thing exist underground?" Su Che silently guessed.

"I don't know. Lao Hei also had no clue, so he could only remind: "This situation must be unusual, master, it's still too late for you to go back now." ”

For Lao Hei, all the information he obtains cannot be hidden from the owner, even if he feels that this matter is very dangerous, he should truthfully inform the owner, as for how to choose, it is up to the master to make his own choice, and he can make a suggestion at most.

"No!" Su Che's choice was very decisive: "Since you have embarked on the path of cultivation, you must have the courage to explore the unknown, otherwise, you will miss countless good fortunes." Besides, if we don't move forward, how can we be sure that what awaits us is a blessing or a curse?"

"Okay, I support any decision made by the host. Lao Hei then agreed, and said: "According to my estimate, the location here is close to ten miles from the surface of the earth, and the heat flow in front of it is likely to be an underground fire vein. ”

"Is that little red dot in front of the tunnel a reflection of the underground fire veins?" asked Su Che.

"I guess so. He replied, "It's too far away for me to be as discerning as you are." ”

Lao Hei's insight ability is only a hundred zhang, beyond this range, what he sees is the same as what Su Che saw with his naked eyes.

Su Che once again stepped over the invisible diaphragm, facing the incoming heat wave, and the speed of his progress couldn't help but slow down a lot.

As the distance gradually approached, the temperature in the tunnel became higher and higher, and soon, Su Che needed a true qi body to resist the high temperature, and if he was an ordinary person, he would have already been roasted and put on the table at this point.

Getting closer......

When I came to the end of the tunnel, it suddenly opened up in front of me, and it turned out to be an extremely open underground space, a strange world of fiery red.

This is supposed to be an underground lava channel, with orange-red magma flowing slowly below, and the surrounding cave walls have shown a glazed character, as if they are covered with a thick layer of red crystal, and the normal color of the soil and rock is basically invisible.

Suche stepped out of the tunnel and continued downstream of the lava river along a narrow passage jutting out of the cave wall on the right. This is the only feasible path, and it is not known whether it is natural or artificially excavated......

After walking nearly a hundred zhang, I turned an arc, and saw that the lava river channel converged into a lava lake there, where the space is more vast, the length and width are incalculable, but the height is more than 30 zhang.

"A huge and majestic furnace hall!" thought Sucher, a vague description that was perfect for describing the scenery.

However, it didn't matter what the scenery was here, what mattered was that Su Che saw a small black island protruding from the lava lake, which was not large in area, more than ten zhang in diameter.

Directly above the island, there is a triangular flag quietly suspended, and on the golden flag, there are some dark patterns embroidered, as if there are two words, the distance is too far, Su Che can't see clearly.

The location of the island is not too far, within the detection range of Lao Hei, so Lao Hei replied: "I can see those two words clearly, but I don't recognize them, they should be a very ancient font, and this kind of script is no longer used in the current cultivation world." I made a note of what they looked like, went back, and found the relevant books to look them up. ”

"This command flag can levitate automatically, it should be a magic weapon, right?" Su Che asked in his heart.

"It must be a magic weapon!" Lao Hei was originally a tool spirit, and his sense of magic weapon artifacts was particularly keen: "It's just that I can't sense whether it has a machine spirit for the time being." ”

At present, Su Che certainly wanted to get his hands on the treasure, but he did not forget that there should be a red-tailed fox with good strength here......

looked around, but there was no trace of the red-tailed fox, and Lao Hei also didn't detect anything.

Su Che visually measured the distance, and the position he was at the moment was about sixty feet away from the island in the lava lake, and he didn't know how to fly, so if he wanted to reach the island, he had to swim through the magma.

Swimming in magma sounds extremely terrifying, but in fact, it is only terrifying for ordinary people, and immortal cultivators can come up with many ways to accomplish such a feat.

For example, Su Che was already a cultivator in the middle stage of Qi cultivation, so he could control the high-grade magic weapon. At the beginning, Luo Lianqiao was captured in the Sealed Demon Domain and his high-grade magic shield was seized. With this magic shield alone, Su Che can not be afraid of the heat of magma.

However, as soon as Su Che sacrificed this cyan magic shield, he heard Lao Hei's warning: "Something in the magma is swimming over, and the speed is very fast...... Hide on the other side of the island and stop for a while!"

(If you like this book, don't forget to collect and recommend, thank you!)