When the Undead and Shura were destroyed, a Hell Magic Crystal would condense.
However, in the Ghost Hell Region, even the Hell Magic Crystals condensed by killing the Undead would quickly dissipate. Only the Hell Magic Crystals condensed by the Hell Shura could condense for a relatively long time.
And on the Great Taboo Day of the Second Dark Realm, there was a Feast of the Undead.
At that time, the countless Undead that had been destroyed, under the power of the two moons, the Hell Magic Crystals of the Undead could float in the air for a relatively long time.
But now, they were in Cloud Sky City, so when the countless Undead and Shura were destroyed by lightning, the Hell Magic Crystals did appear, but they were almost immediately turned to ashes.
So, even if the Shura Vulture wanted to revive these Undead, it was too late.
In this great battle, Yang Dingtian gave an energy jade box to almost every Infinity Grandmaster-level powerhouse.
They only had one mission, which was to rush up and harvest the Hell Magic Crystals the moment the Undead and Shura were killed.
This time, too many Undead were destroyed, no less than 100 million.
Logically speaking, there should be some harvest.
In the end, there was no harvest!
In the incomparably crazy hunting, countless low-level Undead and Shura didn't even have the chance to produce Hell Magic Crystals before they were directly turned to ashes.
As for the higher-level Undead and Shura, after being destroyed by lightning, the Hell Magic Crystals disappeared in the blink of an eye. It was very difficult to even see them, let alone harvest them.
Yang Dingtian concluded that after the Undead above the Grandmaster-level were destroyed, the Hell Magic Crystals could be seen with the naked eye. They would appear in an instant and then disappear, so fast that it was impossible to harvest them.
And after the Grandmaster-level Shura was destroyed, the Hell Magic Crystals that condensed could exist for less than 0.1 seconds.
As for the Undead above the Half-saint level that were killed in the end, after being destroyed by lightning, the Hell Magic Crystals that appeared could last for less than half a second.
And the Shura above the Half-saint level could stay in the air for more than half a second.
So, in this feast, although most of the Undead's energy essence was wasted.
But, there was still a very, very rich harvest.
But how much harvest?
He didn't know, and had no way of knowing.
Because it was stored in the energy jade box, it couldn't be opened.
As soon as it was opened, it would completely dissipate.
As for Yang Dingtian, he wore the Magic Spirit Mist Cloak and quickly flashed to harvest those Hell Mana Crystals.
He used his soul ring to harvest these Hell Magic Crystals.
Everything happened too quickly. From the beginning to the end, it took less than half a second.
In short, the number of energy jade boxes that were handed over to Yang Dingtian was more than a thousand.
In other words, they had captured at least a thousand Hell Magic Crystals.
And Yang Dingtian's harvest was the only clear one.
Because he had the Nether Ghost Emperor in his soul ring.
He had captured a total of nineteen Half-Saint Hell Magic Crystals and nine Saint Hell Magic Crystals.
Of course, his gains were not the greatest.
The ones who benefited the most were the Mermaid Queen Violets and Naru, the two Saint-level experts. They were also wearing the Demonic Spirit Mist Cloak.
All Hell Magic Crystals had to be refined by the Nether Ghost Emperor before they could be used by humans.
Therefore, according to the agreement, he had to give a third of the Hell Magic Crystals that he refined.
In other words, Yang Dingtian had to give him six Half-Saint Hell Magic Crystals and three Saint Hell Magic Crystals.
Unfortunately, the Nether Ghost Emperor's current cultivation was not enough to refine the Saint Hell Magic Crystals. He couldn't even swallow them directly.
Therefore, in the end, he refined the Energy Essences.
In total, there were six Level 15, three Level 16, three Level 17, and one Level 18!
Of course, this was only a small part of the harvest.
Although there weren't many Master Level, Great Master Level, and Infinite Great Master Level Hell Magic Crystals.
But the Energy Essences of Half-Saint Level and above had a fixed location and a clear target. Moreover, they were destroyed one after the other and not at the same time.
Therefore, most of the most precious Hell Magic Crystals should be in his hands.
Next, the more troublesome part was how to take these Hell Magic Crystals out of the energy jade boxes and give them to the Nether Ghost Emperor to refine.
Of course, there were two ways.
The first way was to go to the Ghost Nether Region.
However, that would be no different from courting death.
Once the Ghost Emperor Wentian found out about the crushing defeat here, he would probably be heartbroken and hate Yang Dingtian to the bone.
If Yang Dingtian dared to enter the Ghost Nether Region, he would definitely use all means to kill Yang Dingtian.
Although more than half of the Saint Level, Half-Saint Level Undead and Shura Level Undead had died in this battle.
But in the Underworld Empire, there were still Half-Saint Level Undead and Shura Level Undead and Shura Level Undead.
Of course, if the speed of entering and leaving was very, very fast.
Perhaps it would be a different story.
What he was afraid of was that the Nether Ghost Emperor had set a huge trap in the Underworld Empire and was waiting for Yang Dingtian.
This way, not only would he capture Yang Dingtian, but he would also be able to snatch back the precious Hell Magic Crystals.
The second way was, of course, to borrow the Evil ways' Underworld Ghost City.
It was still very dangerous there, but it should be much better than the Underworld Empire.
… …
After Yang Dingtian collected all the energy jade boxes, the few of them immediately held an emergency meeting in the air.
Should they go to the Underworld Ghost City and take out the Hell Magic Crystals and transfer them into the soul ring for the Nether Ghost Emperor to refine?
Naru and the Mermaid Queen expressed that there was no need for discussion and that they should immediately go to the Underworld Ghost City.
Because now was the Evil ways' most chaotic time, the Queen Devil Queen must have suffered a huge blow. When she came back to her senses, she would definitely close the Underworld Ghost City.
There was no time to lose.
Yang Dingtian collected all the energy jade boxes at the first moment. Then, he, Naru, and the Mermaid Queen Violets wore the Demonic Spirit Mist Cloak and flew to the Underworld Ghost City as fast as they could.
Thus, a funny thing happened.
The Queen Devil Queen and Prince Li Ming led all the Evil Spirit Warriors back to Sky Demon City as fast as they could.
Yang Dingtian and the other two wore the Demonic Spirit Mist Cloak and flew to Sky Demon City as fast as they could.
The Mermaid Queen Violets, for some reason, was carrying a huge destructive bomb.
Fortunately, she was a Saint-rank powerhouse. Carrying such a huge destructive bomb, her flying speed was definitely not fast.
In the end, a funny thing happened.
Yang Dingtian and the other two arrived at Sky Demon City earlier than the Devil Queen and the others.
Yang Dingtian did not dare to enter the Empire of Darkness.
But the Underworld Ghost City was not a problem at all.
Yang Dingtian and the other two arrived above the Underworld Ghost City and saw the huge pyramid at first glance.
That thing was the undead's teleportation array.
"Let's blow up this pyramid later," the Mermaid Queen Violets said.
So, this was what she was planning.
However, this was indeed the best opportunity because the rear of the Evil ways was completely empty.
He really did not know what the Devil Queen was thinking. She did not even leave behind a single Saint-rank powerhouse in such an important rear. Only a group of Dark Dragons, Dark Evil Dragons, and Destructive Earth Dragons were left behind. What was the use of that?
Yang Dingtian and the other two immediately went into the Underworld Ghost City. They were about to open the energy storage and transfer the Hell Magic Crystal inside into the Soul Ring.
However, they were stopped by the Netherworld Ghost Emperor.
"Stop!"
Yang Dingtian was shocked. "Why?"
The Netherworld Ghost Emperor said, "This Underworld Ghost City is greatly lacking in Netherworld Energy.
Once the Hell Magic Crystal is taken out, it will instantly turn into ashes. "
Yang Dingtian asked, "This is already the Underworld Ghost City. Why is there still insufficient Netherworld Energy?"
The Netherworld Ghost Emperor said, "Will your crystal power unit be running all day long?"
With this, Yang Dingtian understood.
This Underworld Ghost City had been modified by Shura.
However, most of its Netherworld Energy was supplied by the Empire of Darkness's Skyreach Imperial Capital.
The modified Underworld Ghost City was equivalent to an electrical circuit that could transmit the Netherworld Energy converted by the Empire of Darkness to every corner of the Ghost City.
This did not mean that Shura could create a real Underworld Ghost City.
If that was the case, Yang Dingtian did not understand. If the Devil Queen wanted to invade the Central Continent, how would she build the Ghost City in the Central Continent?
Could she dig a huge tunnel from the bottom of the sea and transmit the Empire of Darkness's energy to the Central Continent?
In order to provide the Netherworld Energy for the Underworld Ghost City, the Skyreach Imperial Capital had to desperately extract energy from the mainland.
Therefore, when the undead were not around, even when the sky was dark, the Skyreach Imperial Capital would cut off the supply of Netherworld Energy to the Underworld Ghost City.
If there was no Netherworld Energy in the Underworld Ghost City, wouldn't they have come for nothing?
"We didn't come for nothing. At least we can blow up this pyramid. This way, the undead and Shura will never be able to enter the human countries again," the Mermaid Queen Violets said.
Then, she immediately took action. She drilled a big hole in the ground and buried the huge destructive bomb under the pyramid's energy array.
At this time, the Evil Warriors had already flown back.
Violets said, "Should we wait?
Will the Devil Queen activate the Netherworld Energy in the Underworld Ghost City? "
Yang Dingtian shook his head and said, "That's impossible. Now that the undead and Shura's army have been wiped out, there's no need to waste energy activating the Netherworld Energy. Let's go …"
Violets nodded and directly activated the crystal ignition device of the destructive bomb.
Then, the three of them retreated from the Underworld Ghost City as fast as they could.
As for the huge amount of Hell Magic Crystals, they would have to think of another way.
…
At this time, the Devil Queen handed over the authority of the Evil ways to Prince Li Ming.
Prince Li Ming looked in the direction of Cloud Sky City and said word by word, "Yang Dingtian, the next battle is between you and me!"
Then, he turned to look at the pyramid below and said slowly, "Next, there will be more than ten Saint-level undead and dozens of half-Saint-level undead entering the human countries.
Every night, they will carry out fatal assassinations on the upper echelons of your Council of Light.
From now on, Yang Dingtian, your Council of Light will never have a day of peace. Every day, one of your trusted subordinates will die! "
Before he could finish his sentence, a voice rang out.
"Boom!" Suddenly, there was an earth-shattering explosion.
Then, the huge pyramid's energy array was instantly torn apart.