"What is this..."
Bai Zihe was stunned.
Yesterday, when he checked, he was casual, only probing with his divine sense roughly, without looking at every spot.
But now...
Unintentionally, he actually made such a discovery.
"Swish!"
Without a second thought, Bai Zihe flashed and entered the cave.
The cave was dim.
As soon as he entered, it gave a very bad feeling.
Bai Zihe could even smell a faint musty odor, which gave him a bad premonition.
"Swish..."
Further into the cave.
Stones, walls, had long since rotted and weathered away with the years.
Bai Zihe went deeper and deeper.
He always felt...
There was something inside that inexplicably terrified him.
Suddenly.
Bai Zihe saw a skeleton lying on the side.
A skeleton that had long since rotted beyond recognition, emitting a faint musty odor.
"Is it this thing?"
Bai Zihe poked it with the Zhutian Sword.
Only then did he discover...
This thing was not a human skeleton, but the skeleton of some unknown deep-sea fish.
Fish?
Bai Zihe pondered.
Could it be that these places were submerged by seawater a long time ago, hence the fish bones?
Bai Zihe felt it was not that simple.
After all...
It was a cave he had discovered by breaking through the mountain.
If it had been submerged by the ocean, the cave would have been open, not sealed.
He continued to go deeper into the cave.
A moment later.
Bai Zihe reached the end of the cave.
It couldn't really be called the end.
Because, in front of Bai Zihe, there was a stone door, and what was behind the stone door, Bai Zihe had no idea.
"This is..."
Unintentionally, Bai Zihe actually saw something black on the stone door, as if it were dried blood.
This was not right.
So.
Bai Zihe took out the Zhutian Sword and scraped off all the moss.
Several ancient characters appeared on the stone door.
"Where it is strange, do not open."
What did it mean?
Strange place?
Bai Zihe furrowed his brow slightly.
He really wanted to go in and find out.
"Swish..."
He sent out a wisp of divine sense, trying to penetrate the stone door.
However, his divine sense was completely blocked from the outside, and he could not get in at all. This method was not feasible.
"Forget it."
After thinking, Bai Zihe decided not to go in.
He turned and went out.
"Creak!"
"Creak, creak!"
Just then, a sound came from inside.
Bai Zihe was immediately startled.
Inside...
Could there still be something alive?
Could it be the strange thing described on the door?
"Swish!"
Bai Zihe thrust out his sword, which was the first move of the Tai Xuan Thirteen Swords, "Rainbow Piercing the Sun."
"Hiss..."
The Zhutian Sword immediately pierced deeply into the stone door.
"Riiip..."
He poured his vigorous true essence into it, and the Zhutian Sword immediately blazed with light, splitting the stone door in half!
"Whoosh..."
"Rumble——"
Grit flew, dust billowed.
A moment later, all the dust and smoke dissipated, revealing the true appearance inside.
It was a small, square room.
If calculated...
It should be less than ten square meters.
However, inside there were all sorts of corpses.
Most of them were fish.
The fish were of different species and sizes.
The rest.
Crabs, turtles, octopuses, sharks...
There was everything.
What shocked Bai Zihe even more was.
These marine creatures were all neatly facing the end of the small stone house, as if there was something there, making them queue up.
Bai Zihe looked up.
There...
There was actually a human skeleton.
However, the skeleton had long since weathered beyond recognition, leaving only a skull that allowed Bai Zihe to clearly discern his identity when he was alive.
This made Bai Zihe even more surprised.
So many marine creatures, all coming to surround a human...
It didn't make sense!
Suddenly.
Bai Zihe discovered that the skeleton only had half of its spine left.
The spine should have been pale white, but what Bai Zihe saw was a jet-black section of spine, very strange.
Following the spine down.
Bai Zihe saw the ground of the small stone house.
There...
The color was very dark, and he couldn't see clearly at all.
Bai Zihe walked closer, used the Zhutian Sword to poke away the杂物 nearby, and then saw the truth.
That patch of ground...
It had all turned a strange black.
"Why is this?"
Bai Zihe looked for a long time, but couldn't figure it out.
What was marked on the stone door...
What exactly was it?
And what was making the sound just now?
Bai Zihe was unclear.
Never mind.
He decided to leave this place.
"Creak..."
"Creak, creak..."
Just then, the sound he had heard before came again.
This time.
Bai Zihe heard it clearly.
This strange sound was actually coming from that skull, which had long since rotted beyond recognition!
"Hiss..."
Bai Zihe couldn't help but gasp.
This person had been dead for who knows how many years, and yet their skull could still make a sound. It was truly bizarre.
"Swish..."
Immediately, without hesitation, Bai Zihe directly slashed at the skull with the Zhutian Sword.
A dazzling sword energy instantly flashed out and struck the skull.
However...
To Bai Zihe's surprise.
The skull was not harmed by the sword energy.
It just rolled a couple of times on the ground, then returned to its original position.
Moreover...
A pair of empty eye sockets actually stared at Bai Zihe.
As if it was intentional.
Bai Zihe stared intently and felt a slight dizziness, as if he had been targeted by some strange creature.
What was going on?
"Playing tricks!"
Bai Zihe snorted coldly, a chilling light flashing in his eyes.
"Rainbow Piercing the Sun!"
The next moment, the Zhutian Sword erupted with a shocking radiance.
Brilliant sword energy swept out.
Instantly, a strong wind raged in the small stone house, and countless fish skeletons, etc., were instantly reduced to dust.
Even...
A deep gash appeared on the ground.
It could be seen that the power of this sword was absolutely terrifying.
"Whoosh..."
The next moment, the sword light struck the skull.
The skull instantly shattered into pieces, unable to hold on any longer, fragments scattering all around.
However.
Just as Bai Zihe thought the matter was over.
"Buzz..."
A wisp of black mist rose from where the skull had scattered.
Seeing this wisp of black mist, Bai Zihe's heart trembled, and a bead of sweat appeared on his forehead.
This black mist...
It wasn't the first time he had seen it.
On Dragon Island, when the Dragon Emperor opened the spatial rift and threw the fake Son of Heaven in, he had seen it.
In the Haotian Pagoda.
When he killed his opponents in the Tongtian Pagoda, he had also seen it.
And now... in a real place in the world, he saw it again.