Ji Tianxing and Yunyao walked through the cave and entered an open passage.
This passage deep underground is more than ten feet high and three feet wide.
The ground and cave walls on both sides are paved with black boulders, flat and neat.
Obviously, this channel was dug manually.
The surface of the black boulder is covered with traces of vicissitudes etched by the years, and it has obviously gone through a long period of time.
Yun Yao frowned in confusion and asked: "It's strange that the Baihua Valley has always been occupied by the Bingdi Flower Demon and the Ten Thousand Corpse Bone Demon. How could an ancient passage appear deep underground?"
Ji Tianxing looked at the end of the passage with solemn eyes and said via voice transmission: "Yao Yao, the Ten Thousand Corpse Bone Demon came out of the Flower Valley before, and this passage may be related to it.
Moreover, I can sense that the end of the passage is probably a demon cave, and there is extremely strong demonic energy coming from it..."
Yunyao nodded slightly and said: "I also sensed that the aura of the Ten Thousand Corpse Bone Demon remains here. It is most likely the lair where it is hiding... Do we still want to go in?"
Ji Tianxing thought for a moment, then a cold light flashed in his eyes, and he said in a deep voice: "The damn Ten Thousand Corpses and Bones Demon caused us such misery that we almost lost our lives!
How can we let it go so easily? Let alone escape like this!"
"Okay, then we have to be more careful!" Yun Yao nodded in agreement with his decision and warned.
Soon, half an hour passed.
The two walked underground for more than ten miles along the dark boulder passage, making several turns during the process.
Finally, the two of them were about to reach the end of the passage.
At your feet is a straight and wide boulder passage, and thousands of feet away in front is a dark hall.
Ji Tianxing and Yun Yao walked side by side, both holding swords and full of vigilance and vigilance.
Yun Yao suddenly frowned and his eyes fell on the wall on the right side of the passage.
I saw a gray-white skull inlaid on the dark stone wall three feet above the ground.
Judging from the appearance, the skull is obviously that of a human warrior, and he is also a middle-aged man.
Ji Tianxing observed it carefully for a while and found that the bones of the skull had been strengthened and were comparable to a soul-level magic weapon.
He could basically conclude that the owner of this skull was a human warrior in the Yuanshen realm during his lifetime.
At this time, Yunyao pointed to the left wall of the passage again.
I saw a skull embedded on the wall on the left, three feet above the ground.
This skull is also a human warrior in the Yuanshen realm.
The two skulls correspond to each other, both looking down at the ground, which looks quite strange.
As Ji Tianxing and Yunyao continued to move forward, they discovered that every ten feet away, a pair of skulls would be inlaid on the rock walls on both sides of the passage.
Such carefully arranged skulls make the dark passage even more eerie and full of eerie and terrifying atmosphere.
"Why are skulls mounted on the walls? Is it some kind of formation or ritual?"
"Perhaps it was deliberately arranged by the Bone Demon of Ten Thousand Corpses to show off his identity or majesty?"
The two walked thousands of feet along the passage, talking and talking in secret.
There are exactly two hundred skulls embedded in the thousand-foot-long passage.
Fortunately, when the two of them reached the end of the passage and entered the main hall, there was no movement on the skulls and no strange phenomena appeared.
The main hall is very wide, with a radius of a hundred feet, but it is not completely dark.
The ground paved with black boulders was carved with twists and turns and dense secret patterns of the ghost clan, which seemed to form a large formation.
The formation is running, and the secret patterns are also lighting up with a dark red or dazzling purple brilliance, constantly flashing, and the light and dark are uncertain.
Following the brilliance of the formation patterns, Ji Tianxing and Yunyao could see that there were countless portraits of gods and ghosts carved on the walls around the hall.
Most of the portraits are of ferocious-looking, ferocious and terrifying demons and evil gods.
In addition, in the four corners of the east, south, west and north, there are four skulls inlaid on the walls ten feet high from the ground.
Those four skulls are also the heads of human warriors.
Although it has gone through thousands of years, it has not turned gray and is still as crystal clear as jade.
Ji Tianxing observed carefully and found that each skull had been tempered by thunder, leaving behind tiny thunder lines.
"These four skulls are all powerful human beings who have transcended the tribulation realm, and they have all experienced at least five thunder tribulations!"
This result made Ji Tianxing and Yunyao frown, and they felt more and more that this hall was weird and must be hiding some secrets.
Fortunately, the four skulls were embedded in the wall motionlessly and showed no abnormality.
Ji Tianxing and Yunyao ignored it for the time being and continued to observe the situation in the hall.
In the north of the main hall, on the ground next to the wall, there is a black altar nine feet high.
The altar was made of unknown materials. It was inlaid with many magic crystals and blood essence stones, emitting a strange rainbow light.
This altar is also very old, having gone through at least a thousand years.
At the top of the altar is a blood pool three feet in diameter.
Ji Tianxing and Yun Yao investigated and saw that the sunken blood pool was filled with purple-black blood and was gushing.
A very pungent smell of blood came from the blood pool and filled the entire hall.
In the blood pool, in addition to the rolling blood, there was also a large group of colorful lights suspended above.
Ji Tianxing took a closer look and saw clearly that there were hundreds of remnant souls in the light group as big as a water tank.
Some remnant souls are ice blue, some are dark red blood, and some are grayish white.
Each remnant soul represents a warrior above the Yuan Shen realm.
But the hundreds of remnant souls are not only those of human warriors, but also those of monsters and beasts, as well as warriors of other races.
Catalyzed by the power of the altar, the colorful light group slowly rotated.
Every quarter of an hour, a wisp of dark red air will fly out of the light group, rising into the air.
Ji Tianxing's eyes followed the airflow and looked upward, and he saw a huge blood-red skull inlaid on the north wall!
It was a hundred-foot-tall skeleton troll. The bones all over his body were dark red, and red light was flowing, as if blood was flowing.
A skeleton troll is embedded in the wall, sitting on a huge bone throne.
The crystal-clear white bones formed a throne twenty feet high, inlaid with green, blue and red gems and crystals.
This scene looked very strange, with a sense of horror and majesty.
Ji Tianxing and Yun Yao were both startled for a moment, looking intently at the blood skeleton and looking at it carefully.
I saw that the body of the blood skeleton was also made of countless broken bones.
Its frame and body shape are almost the same as those of a human woman, but the proportion is more than a hundred times larger.
In the dark red head, there is a pair of deeply sunken eye sockets, which are dark and empty.
It placed its hands flat on the armrests of the Bone Throne, but its wrists were tied to the throne by thick bronze chains.
Even its feet and ankles were wrapped with bronze chains and tied to the bone throne.