A wave of sadness suddenly appeared.

I don't know why, I thought of that string of numbers.

The feet have already followed the string of numbers and stepped on the square, and a sudden change occurred.

There was a loud bang, and the stone chamber seemed to shake for a while, and two large stone slabs suddenly separated from each other on the ground in the center.

A dark hole was revealed.

The mystery of the stone chamber is solved.

There was no joy on Xu Luo's face, and there was still a hint of sadness in his dark and bright eyes.

He didn't understand why Xu Donghao would use that string of numbers as the key to unlock the mystery of the stone chamber.

The combination of numbers was the day of his father's death.

The loud noise has died down.

This cave should be the entrance to the so-called dragon's lair, and the secret that his predecessors have not solved must be able to solve it?

Xu Luo was not sure of this at all.

But he walked resolutely towards the hole.

Whether you believe it or not, there is a dragon or not, but when this opportunity is in front of him, it is impossible for Xu Luo to give up this opportunity after all.

There is a flight of stairs going down.

When there are no steps, the road under your feet immediately looks potholed.

The walls of the passages on both sides are also completely unrepaired.

The air began to get cloudy.

This should be a primitive underground passage, and it feels more like Xu Luo is blocking this section of the passage with a stone chamber to prevent any accidents.

Could this passage be in danger?

The long passage seemed to have no end, and even when a calm person like Xu Luo almost lost his patience, a stone gate suddenly appeared in front of him.

Illuminated by a white beam. Xu Luo could feel that the stone of this stone gate was different from all the stone gates he had seen just now.

It is a stone gate made of all-black stone.

The color alone made him unable to think of what kind of stone it was.

When he walked to the stone door, he put his right hand shut.

Dry and cold.

These two completely different sensations can appear on the same stone door. Xu Luo was extremely surprised. If he hadn't touched it with his own hands, he would have thought it wasn't a stone.

But. The hand can tell him very clearly that this is a kind of stone.

The roughness of the stone, the coolness of metal.

Could it be that the Dragon's Lair is real?

It was precisely because of his complete unfamiliarity with this stone that Xu Luo's current thoughts were immediately caused.

Start taking a closer look with the help of a flashlight beam.

There is no trace of it.

There were no visible buttons, mechanisms or other objects on this two-person tall stone door, which made Xu Luo's heart sink.

Moving forward, to the left and right, it can't be shaken at all.

A strange thought popped into my mind.

Xu Luo took a step back, pulled out the black sheath long knife, and slashed at the stone door.

"Ding" sound. Sparks fly.

A faint white mark appeared on the black stone door.

Xu Luo knew very well the sharpness of this black sheath long knife, and he didn't feel strange in his heart.

He didn't use all his strength, and the fact that the long knife was able to leave white marks showed that the stone gate was not so hard that it could not be broken.

He believed that the people who arrived here were certainly not one or two.

So why is no one able to break it?

There must be something else.

When he began to observe the stone gate again, a frightened expression suddenly appeared on his face.

The white marks left by the black sheath knife were disappearing at a speed visible to the naked eye.

Thirty seconds later, the black stone door was restored to its original state, leaving no traces.

Xu Luo could barely believe his eyes.

This change is completely miraculous and simply cannot be explained by science. To confirm that this is not a delusion. Xu Luo swung his knife again and slashed at the stone gate.

And this time it's been a huge effort.

Deeper knife marks appeared.

But the scars soon began to disappear, even faster than the last time.

This is not an illusion.

Xu Luo put away the knife, stuck it back in his back, and put his hands on the stone door.

He wanted to feel the stone gate again. It's still the same feeling, dry and cold.

Spiritual power suddenly poured out of the body, slowly completely covering the surface of this stone door.

Xu Luo wanted to use this way to explore the mysteries of the stone gate.

Strange things happened suddenly.

The dry, cold feeling suddenly disappeared. I only felt that the black stone door suddenly disappeared in front of me.

Xu Luo looked at it intently.

There was no black stone door in front of him, and his hands were completely pressed into the air.

The spiritual power released by himself still remained the size of the stone gate just now.

There is only one circumstance that can be explained.

He had come to the other end of the stone gate. It's another space entirely.

This kind of thing, which can only happen in fiction, or only in scientific theory, actually happened. Is there really a dragon?

This stone gate is the door of the space arranged by the dragon.

Lowered his hand and pinched his thigh.

It hurts, it's definitely not a dream.

I checked the equipment, and nothing was missing except for the bright flashlight that was placed on the ground.

Xu Luo took a step forward.

"Click"

You can clearly feel the same hard object under your feet.

Another flashlight was taken out of the backpack, and a white light shone at his feet.

It turned out to be a skull.

The skull of a dead man.

Moreover, with the white light emitted by the flashlight, Xu Luo saw more white bones, and the passage that he was about to walk through under his feet was full of the white bones of dead people.

At this moment, without any warning, the entire passage suddenly lit up.

as daylight.

The sudden light made Xu Luo's eyes involuntarily squint slightly, and he involuntarily took a step back under his feet, and hit his back against a wall.

Dry and cold.

It was the black stone door.

I quickly adjusted to the current light and looked ahead.

Xu Luo found that the whole passage was very neat, but there was no light, and this light did not know where it came from, but there was a stone top with obvious potholes overhead.

The neat stone walls on both sides suddenly changed.

As if out of thin air, a huge, mountain-like rock giant appeared in front of Xu Luo's eyes, each one a man and a half tall.

They roared from their mouths and walked towards Xu Luo with a big fist.

The passages were filled with the earth-shattering footsteps of these rock giants.

Xu Luo felt the entire passage tremble.

The black sheath knife was immediately drawn, and the hand axe was held in his left hand.

Dealing with this kind of rock giant, which only exists in fantasy novels, Xu Luo is completely inexperienced and does not dare to be negligent at all.

It's just that there is no bottom in my heart.

In the Dark Age, there has never been such a monster.

And so far, he is not a booster, and his hole card spiritual power should have no effect on this rock-made creature.

He didn't want to be like the man who had nothing but bones left in this passage.

To live.

The right foot suddenly hit the ground, the whole person rushed forward, and the long knife in his right hand slashed at the first rock giant, and this knife Xu Luo did not leave any strength at all.

As soon as the blade touched the body of the rock giant, the rock giant miraculously vanished. (To be continued......)