As Ao Cangfeng said, there are obvious traces of artificial excavation on the four walls of the cave. Although the marks of those knives and axes are messy, they are definitely not natural. With the help of the faint light emitted by the fire fold, the three of them walked cautiously, for fear of touching some bad mechanism.

This cave is in the shape of a trumpet, and when they first entered, the three of them could only bow down, but they could not walk more than ten steps before they could stand up and move forward. And when I walked twenty or thirty steps, the scene in front of me suddenly opened up. It turned out that under this ground, there was an underground cave that had been dug out by someone.

The length and width of the cave are about 10 zhang and the height is 2 zhang, and it seems to have been processed and excavated on the basis of a natural karst cave. The cavern was filled with cold moisture, and a strange rancid smell permeated the vast space. On the roof of the cave, there seemed to be a transparent water mirror, which actually let through a touch of bright moonlight.

Bai Xiaoyi was the first to slide in along the slope, he looked at this huge cave with a length of more than ten zhang and a width of more than ten zhang, and couldn't help but admire:

"His uncle, I didn't expect that there was really a hole under this Bao'en Temple. The upside-down stupa is already magical enough, but I didn't expect it to be even more magical. ”

There was a loud bang, and the arrogant wind also slid down after him. He cautiously glanced around and said in a low tone:

"Everyone be careful, I always feel that this so-called yin acupoint is not so simple. ”

There was a disdainful snort from behind her, and Fox Mei'er fell to the ground lightly under the blessing of the wind control technique. She dusted off the dust she had occupied, and said nonchalantly:

"Whatever, we're already down anyway, let's take one step at a time. ”

With a blink of her big eyes, the fox demon girl could barely see the outline of the cave with the help of the moonlight. She frowned slightly, and ordered towards Bai Xiaoyi:

"Idiot, what kind of golden light talisman are you, light up a few for this fairy, it's too dark here. ”

A smile that was more ugly than crying appeared on his face, Bai Xiaoyi twisted the water on his clothes and moaned:

"Grandma, don't you remember? I just fell into the water, and all the charms on my body were stained with water, so I can't use them. ”

Turning her head to look at the fire fold in Ao Cangfeng's hand, which was not much brighter than a candle, Mei'er sighed and said:

"The man is really unreliable, and at a critical time, he has to go out in person. ”

As she spoke, the spell on the girl's fingertips turned sharply, and the purple fire on the six tails behind her instantly soared threefold. With a snort, six bright foxes flew out in a fan-shaped shape with the flick of her tail. The flying speed of the fox fire was extremely slow, and everyone finally saw this cave clearly with the help of the ghostly light emitted by the fox fire.

The cave was about the shape of half a duck's egg, enveloping several people like a bowl. The cave is littered with unidentified bones, too far away to be recognized. In addition, there are five bronze mirrors erected in the cave, the whole of which is made of bronze and mounted on a triangular base. And one of the bronze mirrors happened to be within the direct range of the moonlight on the top of the cave.

As the fox fire flew farther and farther, the three of them also saw that there seemed to be a huge stone door in the innermost part of the cave. The stone door is arched in a circular shape, and there seem to be several sparkling gems above the door.

As soon as he saw that there seemed to be a treasure, Bai Xiaoyi raised his feet and was about to run out.

The arrogant wind on the side grabbed the reckless young man, and said angrily:

"Don't move! Don't you tell you to be careful? Look at the white bones on the ground, there is definitely something strange in this cave! Xiao Yi, don't you know how to open the eyes of the sky, use the eyes of the sky to see if there is anything strange, make sure that everything is safe, let's go in again." ”

Although he was in a hurry to go to the treasure, Bai Xiaoyi, who was a little afraid of death, still followed the instructions of the arrogant wind, closed his eyes and opened his "heart eyes".

Under the strange vision, even if the surrounding darkness does not affect the scenery in the heart. Bai Xiaoyi's divine thoughts gradually spread out to the surroundings, and he saw the entire cave clearly. There were more than a dozen human skeletons scattered on the ground, judging by their outfits and decaying weapons, they seemed to be soldiers of the Shang and Zhou dynasties. The bones of these people are intact, and there are no traces of battle, could it be that they committed suicide here after building this cave or used it for burial?

The young man's mind swept over the bones, and only found some black dead qi remaining on the bones, and there was nothing else unusual. Bai Xiaoyi, who really couldn't see any doorway, continued to explore inside, and everywhere his thoughts passed were the rocks of the cave and the stone platforms of the five bronze mirrors. And at the innermost point is the huge stone gate. Under the vision of the heart's eye, there was a blood-red gem the size of a watermelon directly above the stone gate, and around the ruby, it seemed that twelve jade stones the size of eggs were distributed according to the twelve hours.

As soon as he saw these gems, Bai Xiaoyi instantly opened his eyes, and he exclaimed excitedly:

"It's normal! Everything is normal inside! There are some bones that are about to rot into slag, and there is nothing out of the ordinary!"

As he spoke, the boy strode towards the stone gate in the distance. Shaking his head helplessly, Ao Cangfeng and Mei'er also followed behind and walked towards the depths of the cave.

Along the way, they carefully examined the bones on the ground, and sure enough, as the rogue boy said, they were rotten and unshaped. The scattered swords and shields were also rusted and broken, and they could not be seen at all. After wandering around for a week, Mei'er and Bai Xiaoyi ran to the innermost part to tinker with the stone door, while the calm arrogant wind began to circle around the bronze mirrors.

Stretching out his hand and gently pushing it, the young man with the negative sword found that the bronze mirror could be rotated. A flash of inspiration flashed in his mind, and Ao Cangfeng shouted with both hands, turning the bronze mirror under the direct moonlight.

The bright moonlight swept through the dark cave like a searchlight under the refraction of the bronze mirror. In the surprised gaze of the arrogant wind, the light shone directly on the stone gate.

Bai Xiaoyi and Mei'er, who were checking the stone gate over there, were stunned when they saw a beam of white light projected over. Then he suddenly looked at the arrogant wind on the side of the bronze mirror, turned his head reassuringly, Bai Xiaoyi looked at the top of the stone gate that was more than a zhang high from him, and muttered worriedly:

"His uncle, why is it so high? The gems on it are valuable at first glance, but at such a high place, how can I take it?"

The fox demon girl who followed her was too lazy to take care of this money-hungry teenager, she groped for the fine lines on both sides of the stone gate, and a touch of solemnity gradually appeared on her face. Because she was surprised to find that the symbols carved on the stone door turned out to be a string of incantations. Taking a few steps back cautiously, Mei'er took out the amber chip from her waist and shone it at the stone door.

After three or five breaths, a string of arch-shaped words appeared on the chip:

"Heaven and earth open, and the world turns. The spiritual light gathers, and the ghost door opens. ”

Whispering to the side, the fox demon girl looked at the arched stone door with some horror:

"No, this thing, it's a ghost gate?"

Vaguely hearing the girl's words, Bai Xiaoyi turned his head and asked puzzledly:

"What?

Before he could finish speaking, the arrogant wind who turned the bronze mirror over there actually shone the refracted moonlight directly on the largest ruby above the stone gate in order to better observe the stone gate.

A strange buzz came from inside the gem, and then the huge ruby emitted a blinding red light. Under the frightened gaze of the three people in the cave, the inscriptions on the stone gate lit up one by one, and at the same time, clusters of miserable green flames flew out of the stone gate.

In an instant, those flames attached to the rotten bones on the ground, accompanied by a creepy click, and the bones that had been dead for an unknown number of years actually got up again.

Their scattered bones gradually gathered towards the fire in their bodies, and in a short time they formed a complete skeleton. Those weapons that were so rotten that they could not be seen that a layer of green flames gradually rose. In the two holes on the skull's head, which were originally empty, two dark green ghost fires suddenly burned.

With a groan that seemed to come from the Nine Netherworlds, those skeletons rushed towards Bai Xiaoyi and the others.