Zhang Fan walked down the stairs slowly.

The detection range of the nanowatch is ten kilometers.

At this time, within the detection range of the nanowatch, this channel has been extending downward.

The ten-kilometer-long dark passage, walking in it, will naturally produce a sense of loneliness and fear.

But Zhang Fan didn't have these feelings.

He's used to being alone anyway.

As for fear, he'd already experienced enough in the 301 lab.

What is this fear now?

The passage went all the way down, and it took about fifteen kilometers to reach the end of the passage.

At the end of the passage is a stone gate.

The stone gate seems to have been forcibly broken.

Next to the stone gate, there is a small stone monument that is only half a meter high.

There are some handwriting engraved on it.

Because of the age, the handwriting on the stele has been blurred, and some of them seem to be missing strokes.

However, the nanowatch has built a model, and it is easy to restore these handwritings.

I saw that what was written on it was: The first teacher was in the tomb of Jiucheng.

Another tomb.

At the back of the tomb, the life of this person is engraved.

Zhang Fan read it again, probably saying that Yu Jiucheng was from the Tang Dynasty.

When you are young, you are good at martial arts, and when you are old, you are good at strange arts (in fact, it is also the so-called cultivation of immortals). For a copy of the "Recipe for Longevity", the family property was exhausted. so that in old age they are destitute.

At the end of the inscription, he advises the world to live in peace and not to pursue those vain things.

However, after Zhang Fan read it, he was shocked in his heart.

There is even a mention of "The Secret of Longevity".

Although it said that the "Recipe for Longevity" was only made up by someone to fool those who pursued immortality, Zhang Fan did have some unexpected effects after cultivating the Recipe for Longevity.

For example, the spirit bead that can kill the spirit warrior in seconds.

In this way, this "Recipe for Longevity" must have a lot of origin.

It seems that I will have to study it well when I have a chance in the future.

But the most important thing at the moment is the power stone.

Zhang Fan immediately walked in through the stone gate.

Behind the stone gate, two passages are divided.

At the end of the passage, there was another door.

One door is engraved with the word "life" and the other is engraved with the word "death".

Zhang Fan took out the energy detector at this time, and first probed in front of the birth gate for a while, but the energy detector did not move.

Then he probed in front of the death door.

Soon, the energy detector reacted, and it showed an energy value of 0.044.

Zhang Fan hesitated to go in.

After all, there is a door to death here, and if you enter from here, will something happen?

But if you enter through the raw gate, I'm afraid it's a trap.

In order to prevent tomb robbery, people deliberately put traps behind the birth gate.

Of course, it is also possible that behind the door of life and death are actually dead ends.

Fortunately, the door to death has been forcibly broken, and it seems that the Shadow Moon group has already entered.

With them in front of the mine, there should be no problem getting in by yourself.

Zhang Fan immediately cautiously entered the door of death.

As he walked, he probed with a nano watch.

After walking for more than 100 meters, the nanowatch detected a dark pit under the ground in front of it.

The pit is covered with a stone slab.

The slate is alive, and if you step on it, you will inevitably fall down and fall into the pit below.

In the pit below, there are thousands of stone nails.

The nails are extremely sharp, and according to the nanowatch, they all have neurotoxins on them.

As long as you fall, you will inevitably be pierced. Even if you don't get stabbed to death, you're sure to die of poisoning.

Zhang Fan built a model through a nano watch, and he can already see that there are two corpses in the pit below.

Obviously, this is someone from the Shadowmoon Group.

Zhang Fan jumped lightly and jumped over the ten-meter-long stone slab.

Not long after walking forward, several more mechanisms appeared.

Inside these organs, there are the corpses of the killers of the Shadow Moon Group.

It seems that although Yu Jiucheng was poor during his lifetime, his apprentice was a big tyrant, and he actually dug a fifteen-kilometer tunnel, and then set up so many anti-theft mechanisms in it.

After walking more than a hundred meters forward, Zhang Fan could see from the holographic map given by the nanometer watch that there was another stone gate in front of him.

And this stone gate is bigger than the previous one.

At this time, the energy detector shows that the energy value has reached 90.334.

It means that it is very close to the power stone.

It is very likely that behind this stone gate is a power stone.

However, this stone gate seems to be very strong, and the people of the Shadow Moon Group used miniature blasting explosives, pulse guns, and cutting machines in front of the stone gate, but they were unable to do any damage to this stone gate.

Zhang Fan simply didn't leave, so he stopped here first, and waited for the people of the Shadow Moon Group to open the stone door before entering.

The people of the Shadow Moon Group really have a lot of tools, and in half an hour, they tried more than twenty kinds of tools.

But the stone gate didn't move.

Eventually, someone suggested, "It seems that we can only use a carbon steel knife." ”

When Zhang Fan heard this, his heart moved: The Shadow Moon Group also has a carbon nanosteel knife?

He searched the memories of the three peak martial artists he had devoured before, and he quickly understood.

It turned out that the last time he was fighting Yue Huanan in the Dead Mountain, the Shadow Blade fell on the Dead Mountain.

Later, the Dead Mountain was melted into lava, and Shadowblade was also annihilated by the lava.

Later, after the magma cooled, the remnants of the Shadowmoon Group went to the Death Mountain to look for some things from the Shadowmoon Group, and stumbled upon the Shadowblade.

Now, this shadow blade is in the hands of the leader ten.

However, the leader of the tenth group was leading people to look for energy stones on the cliff of Shennongjia at this time, and it would take at least an hour to send the shadow blade over.

The group leader said to the more than 100 killers in the group: "Rest and rest first, go up and breathe." ”

Although they are all existences above the peak martial arts, they will also feel uncomfortable staying in such a deep underground for a long time.

So they all turned around and walked upward.

Zhang Fan had nowhere to hide at this time, so he could only turn around and walk up.

It didn't take long for him to come to the exit above.

Soon, he hid behind a pile of rocks more than two hundred meters away from the tent at the exit.

More than ten minutes later, there was already a killer at the exit.

Of the more than 100 people, more than 20 people have come up.

They soon found the bodies of those three peak martial artists.

Suddenly, the entire Shadow Moon group panicked.

But after all, they are the Shadow Moon Group, and they are killers.

I've seen scenes like this a few times.

So they soon calmed down.

One of the killers, who was the first to find the body, shouted:

"Someone is sneaking up, pay attention to concealment! Someone sneaks up, pay attention to concealment! ”

However, he only shouted twice, and the crying stopped abruptly.

Because around his body, a black hole appeared in an instant, and he was directly sucked into this black hole.

When the black hole disappeared and he appeared in front of everyone again, he was already a corpse.