At Zhang Chen's speed, Edgeworth flew, a distance of three thousand miles, of which he stopped to ask for directions, and it took a total of a week.

In the early morning of the second week, the golden crow rises in the east, and the warm sun pours down.

From the top of the lookout, you will see a patch of steep and towering mountain peaks, within a radius of a hundred miles, there is hardly any green to be seen, all covered by rocks, even some grass and trees are withered and dying.

The mountains are deserted and desolate.

This used to be the Demon Sect's Blood Refining Hall, the lair of the black-hearted old man, after the fall of the black-hearted old man, the Blood Refining Hall collapsed, and the entire Kongsang Mountain was no longer seen as a disciple of the Blood Refining Hall.

Although the Blood Refining Hall is gone, the lair of the black-hearted old man is at the foot of Kongsang Mountain, in the ruthless sea of the Necromantic Abyss.

Jumping down from the flying sword, it landed on a high mountain, hanging the flying sword on his waist, and his eyes swept around.

The inner circle within a radius of 100 miles is the range of Kongsang Mountain, but the main peak is in the middle.

Raising his gaze slightly, his gaze fell on a bare and majestic mountain a few miles away, Zhang Chen's figure flashed, and he walked towards the main peak in an instant.

…

…

As time passed, the sun was shining until noon.

Behind the main peak of Kongsang Mountain, looking at the dark entrance of the cave in front of him, a solemn look flashed in Zhang Chen's eyes.

In front of me is a huge half-mountain cave, located in the shade of the mountain and the back of the sun, slightly inclined downward, only the entrance of the cave is a little bright, and further down is pitch black.

Standing five or six zhang away from the entrance of the cave, Zhang Chen could feel the wind blowing out of the cave in bursts, brushing his face, and it was cold to the bone.

At the same time, there was a faint rustling sound, like whispering, like a ghost crying, which made people's hearts numb.

Ten Thousand Bat Ancient Caves.

Located under Kongsang Mountain, it is the tomb of the black-hearted old man of the Demon Sect Blood Refining Hall and the Golden Lady of the Hehuan Sect, and the only entrance is this cave.

More than 800 years ago, the black-hearted old man saw that the empty Sangshan was full of spiritual energy, and set up this cave in order to resurrect the beast god and enslave the people, and hid a lot of strange treasures into it, but in the end, the beast god failed to resurrect, and the black-hearted old man also died in the cave.

The cave is full of dangers, many mechanisms, and dangers.

If there are no Demon Sect disciples now, it is best, if there are Demon Sect disciples here, it will be a hard battle to break in by yourself.

It is a matter of life and death, he has to be cautious no matter what, but in order to improve his strength, Tianshu must also go and observe.

Thinking of this, Zhang Chen took out the saber at his waist and slowly stepped into it.

As soon as the front foot stepped into it, the yin wind was biting, Zhang Chen's eyes were like electricity, and he was running the exercises, and the aura was swirling, isolating all the yin qi around him.

As soon as he took a few steps, he smelled a strange smell, his index finger brushed over the Sumeru ring, and a fist-sized night pearl appeared in his hand.

The night pearl emits a glittering light, illuminating all the two feet around the body.

Glancing at the feces on the ground, Zhang Chen's eyes raised slightly, and his pupils shrank slightly.

I saw that at the top of the cave, a dense black bat hung on it, and there was no end in sight.

Rao is Zhang Chenyi is bold, and his heartstrings are tense at this moment.

Ten thousand bats ancient cave, ten thousand bats are named, the first level is ten thousand bats valley, in which the number of bat demons is countless, at night will come out of the hole to forage for food, within a radius of 100 miles is not a single inch of grass is caused by these bat demons.

The bat demon slept during the day and foraged for food at night, Zhang Chen restrained his breath to the extreme, and his steps were gentle, without alarming them.

…

…

Over time, after half a quarter of an hour.

Leaving the tunnel of the Valley of Ten Thousand Bats, Zhang Chen breathed a sigh of relief in his heart, it was really not an ordinary danger, no wonder eight hundred years ago, the black-hearted old man would build his nest in it.

The righteous monks will have to deal with these things before they reach the lair.

Regardless of the advanced cultivation, monks below the sixth level of the foundation may run out of spiritual energy at any time and hate on the spot.

Looking back at the deep darkness, Zhang Chen held the Night Pearl and continued to walk inside.

Fortunately, there seemed to be no trace of the Demon Sect disciples, which made him feel quite relaxed, but he still remained vigilant.

After about half a pillar of incense, a light suddenly bloomed in the darkness ahead, illuminating the passage extremely clearly.

Taking the Night Pearl back to the Sumeru ring, Zhang Chen's footsteps paused, and his eyes raised slightly.

In front of him was a wide, straight passage, and in front of it was an incredibly large space. A hundred zhang high above is the top of the rock cave, and at the foot of the ten zhang is the ground, and on the ground a few zhang away, there is a huge stone filled with a strong light.

It is this boulder that illuminates the entire space.

There are also strange patterns on the boulder, forming three ancient seal fonts of dragons flying and phoenixes dancing.

Necronomicon!

The second line of defense of the Ten Thousand Bat Ancient Cave seems to be picturesque, but it is actually full of dangers.

Among them, there are countless undead, turned into acquaintances, sucking people's energy and cultivation, and it is easy to be fatal if they do not resist in time, and the general spells have a general effect on these undead, and only some talismans and Taoism that restrain evil demons can restrain them.

His gaze was withdrawn from the stele, Zhang Chen looked forward, and saw that behind the stele, there was a huge abyss that suddenly opened.

The light emitted by the boulder illuminated the cave dome, but it could not penetrate half a minute into the abyss behind it.

The footsteps came from far and near, Zhang Chen looked down, it was pitch black, and he couldn't even see the other end of the abyss, only a lifeless and gloomy darkness.

"This is the Necronomicon Abyss, and the Merciless Sea is below."

With that, Zhang Chenxian took off his sword, jumped up, turned into a sword light and swept towards the abyss.

At the same time, the thunder flashed all over his body, which was the second stage of the thunder law.

In this kind of place, even if he is already a Jindan monk, he still has to take all necessary measures, and if there is an accident, he will slip away immediately.

The necromantic abyss was bottomless, Zhang Chen controlled the speed, and after dozens of seconds, it fell steadily to the ground.

Zhang Chen stood with his sword in his hand, the thunder arc permeated his whole body, his eyes scanned the surroundings, and a cold aura spread.

At the same time, an inexplicable spiritual force interfered with his mind and consciousness.

In this regard, Zhang Chen's mind was one, silently reciting the mantra of purifying his heart, the thunder arcs were intertwined, and white smoke rose from the surroundings.

The undead in the Necromantic Abyss are all spiritual remnants, and Lei Fa has great restraint on the undead.

He himself is a Jindan realm, so these undead can't pose any threat to him at all.

Walking in the abyss of the dead, after half a ring, Zhang Chen heard the sound of waves in his ears, chasing the source of the sound.

The footsteps stopped, and a ripple appeared in Zhang Chen's heart.

Looking at the waves crashing on the shore, that dark and deep sea, it is hard to imagine that there is such a strange place underground.

The Sea of Nine Shades, the Sea of Mercy.

…

…

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