The inner city of Lethe Castle is huge.

It occupies almost half of the entire Lethe City.

Before.

The entire inner city is full of undead armies, all of which are commander-level existences, and their management mode is similar to that in the bone plain, with slavery as the mainstay, the city lord enslaves twenty subordinates, and these twenty subordinates enslave the rest of the undead creatures step by step.

This is also the army mode of the Corpse King City.

And because of this model.

Therefore, similar to the Bone Plain, this kind of first-order birthplace is very unpopular with the two cities and the city lords.

Because of the existence within this first-order birthplace.

The vast majority of them have been enslaved by people, and the undead creatures who have not been enslaved are also very arrogant, and very few will be willing to hand over the soul fire, so it is impossible to join the undead legions in the two cities.

……

Fortunately.

At this time, the inner city has become empty.

The lord of the city took a batch.

Now another group has been divided into groups, going to the outer city to participate in the battle against the undead creatures in the birthplace.

In the entire inner city, except for a few undead creatures in charge of guarding, there are almost no surplus undead armies.

This is convenient for Chen Feng.

It didn't take much effort to find the entrance to the hedron cave very quickly.

It is located on the left side of the main hall of the castle.

Entrance.

It is guarded by six lord-level undead creatures.

"Who are you?"

An undead skeleton asked, alert.

Chen Feng didn't say a word, and waved the death demon scythe in his hand.

"Hoo ......"

Ninety-nine demon spirits surged out of the scythe in an instant, surrounding the six guards in the blink of an eye.

Sharp claws flickered.

The demon spirits almost didn't use any effort, and directly killed the six lords on the spot.

Chen Feng carried the Death Demon Scythe and slowly walked towards the mine.

The mine is deep.

Tilt down.

There was a special aura fluctuating from it.

All the way.

In the mines, there are also many undead armies who are responsible for patrolling and guarding the mines.

Chen Feng was not polite.

Lead the demons and sweep all the way.

Soon, we came to the location of the white crystal.

On the two walls of the mine, there are gray-white crystals the size of thumbs.

It's rare, almost, every one or two meters apart, that's where there are one or two white crystals.

Chen Feng slashed a few times with the Death Demon Scythe in his hand, and found that the stones next to these spars were extremely hard, even if it was a slash with all his strength, it would take nearly twenty slashes to dig out a spar.

"I can't do it."

"If you mine, it's too slow, you can't mine much at all."

"Time is limited."

……

Chen Feng decisively gave up digging and immediately went deeper into the mine.

As we go deeper.

There are fewer and fewer undead armies in charge of guarding.

The strength is getting stronger and stronger.

But.

For Chen Feng, this is not a matter at all, as long as it is not the existence of spiritual power incarnation, there is basically no need to worry.

Divine liquid and godhead fragments, after being integrated into the skill runes and magic power, are not ordinarily powerful.

……

All the way.

It's almost a god who kills a god, and a Buddha who kills a Buddha.

Push sideways.

……

With the depths.

The spars on the mine wall have also changed, from the white crystal at the beginning, to the black crystal later, and even at the end, there are golden crystals with golden light.

This golden crystal is a good thing that rarely flows out of the City Lord's Mansion.

It is said that with it, the fire of the soul can be strengthened to the extreme.

Chen Feng was very hot-eyed.

After trying it with the Death Demon Scythe in his hand, Chen Feng was quickly speechless, and slashed out nearly fifty knives in a row, which was to get a golden crystal down.

This......

"No, you must go to the core of the mine." Chen Feng gritted his teeth and gave up digging.

Outside rumors.

In the mines.

The golden crystal is the highest grade of the spar.

Chen Feng didn't believe that this golden crystal was the highest-level spar, if there was no treasure to enhance spiritual power, how could the undead creatures in the birthplace make such a big move?

Previously, it was only the Yellow Spring that detonated the jungle of the dead.

Chen Feng is not sure yet.

Right now.

Now that they have all chosen to attack the city, it can be determined that there are definitely other good things in this cave besides gold crystals.

……

All the way.

Chen Feng followed the mine road, continued to go deeper, and soon came to a hall.

A big hall.

Compared to the mine, I don't know how many times it is bigger.

The entire hall is the size of four or five basketball courts.

The walls were covered with sparkling golden crystals, and in the middle of the hall was a cave that sloped downward.

throughout the underground halls.

There are almost fifty undead creatures gathered, and the strength of these undead creatures is much stronger than the undead creatures in the original mine.

As soon as I saw Chen Feng coming.

This group of undead creatures, without saying a word, directly carried their weapons and rushed up to kill.

"Kill ......"

Plain as day.

They all received the message.

Chen Feng is the intruder.

Chen Feng sighed and shook his head: "Why bother? ”

"I know that I am invincible, but I still want to kill it."

"What's the difference between that and looking for death?"

……

Of course.

Chen Feng also understood that these undead creatures had no choice at all.

They all surrendered the existence of the soul fire.

Something happened in the mine.

Death is also inevitable.

……

Didn't think much about it.

With a wave of the Death Demon Scythe in Chen Feng's hand, the ninety-nine demon spirits quickly slaughtered it, fighting with this group of undead creatures.

……

The battle ended quickly.

There is no suspense.

The army of the undead that came to the slaughter was all destroyed.

Chen Feng walked slowly, leading the ninety-nine demon spirits to the passage in the middle of the hall.

The passage is not very long.

On the four walls, there are all golden crystals with golden light.

Densely packed with a large area.

Walked a distance of about fifty meters.

Chen Feng came to a somewhat special place.

It's an underground space.

Not too.

It's only a few dozen squares.

Right in the middle of the space.

A colorful spar stood in the middle of the space, emitting wisps of colorful light, reflecting the entire underground space into colorful colors.

This spar.

Not too.

Only half a meter high.

It is a bit like a wine jug, the spout of the jug, glowing with seven-colored streamers, and the whole jug-shaped spar, vaguely, seems to have some special connection with the entire mine.

"Could it be that this is a treasure that can enhance spiritual power?" Chen Feng whispered, and then dispersed his spiritual power and attached it to the spar.

Suddenly.

Chen Feng's whole person became refreshed, and more importantly, his spiritual power seemed to have improved slightly.

Meantime.

Chen Feng could also feel that the energy on this spar seemed to be missing a wisp, not much, but it was indeed decreasing.

"That's right, that's it." Chen Feng's eyes flowed with joy, and then he immediately picked up the Death Demon Scythe, and was about to start digging.

But I don't want to.

On the hedron.

At the spout, all of a sudden, there were extremely intense seven-colored streamers.

In the streamer.

There was even a faint hint of holiness.

"It's ......"