Although they teleported from the teleportation array, these teleportation arrays were all one-way, and there was no corresponding teleportation array to teleport them back.

What's more, these teleportation arrays have all been destroyed by Cheng Yu and them, even if these teleportation arrays can be transmitted, they don't have a teleportation array.

And when they came over, they didn't plan to go back immediately, but they had to wait until the reincarnation ghost king attacked the human world to attack the human world together, and then they would join the reincarnation ghost king in the underworld.

However, they never expected that they would not be able to get out of school, and they met Cheng Yu as soon as they arrived in the human world, and they were captured alive by him, and now they have become his slaves.

"Speaking of teleportation arrays, how many teleportation arrays have you arranged in total, and do you still have the ability to arrange new teleportation arrays?" Cheng Yu suddenly thought of the question of the teleportation array and asked.

"We have arranged a total of eighteen teleportation arrays, and these eighteen teleportation arrays have all been arranged. However, these eighteen teleportation arrays have all been destroyed by you, master, and we have no way to set up new teleportation arrays now! Moreover, our teleportation arrays are all one-way, and we can only teleport from the Netherworld, and there is no way to teleport back from the human realm!" one of the first-order ghost kings spoke.

Because these first-order ghost kings teleported over first, they already knew about the situation of the ghost clan in the human world, but the ghost king of Minluo was the last to come over and didn't know the situation here.

Cheng Yu carefully recalled the Nether Crystal that he had collected, it was indeed the number of seventeen teleportation arrays, and the Netherstone of the last teleportation array was taken away!

In this way, if those escaped ghost cultivators really want to arrange a new teleportation array, there will only be the last one, which may be considered good news.

"Will you ghost kings all arrange this teleportation array?" Cheng Yu then asked.

"This....... We don't set up a teleportation array, if the master wants to arrange such a teleportation array, some of these ghost venerables that the master has subdued will arrange a teleportation array. It's just that the teleportation arrays arranged by these ghost venerables are all auxiliary arrays, and the arranger of the main array is still in the underworld, and only he knows how to arrange the main array, so if the master wants to arrange this teleportation array, it is useless!" said the Ghost King of Minluo.

The teleportation arrays are all matched, divided into the main array and the auxiliary array. Although the same type of teleportation array is roughly the same, each set of teleportation arrays will be different.

Otherwise, if you set up a set of teleportation arrays, he will also arrange a set of teleportation arrays, if they are all the same, then which auxiliary array will the main array pass to after passing over? Isn't it a mess?

Therefore, each set of teleportation arrays has its own differences, which distinguishes all teleportation arrays, just like numbering, the first main array teleportation will only come out of exit 1, not exit 2. And the No. 2 main array will naturally only come out of the No. 2 auxiliary array, not from the No. 1 auxiliary array.

This guarantees the accuracy of the delivery without confusion.

The difference between this main array will only be known to the person who arranges the teleportation array, but in order to ensure the secrecy of the teleportation array, the arranger of the teleportation array will only make auxiliary array diagrams, not main array diagrams.

In this way, the secrecy of this teleportation array is relatively safe, and even if these auxiliary array drawings are obtained, they will not be able to arrange a complete teleportation array.

Obviously, these ghost cultivators are like this, and the person who arranged the main array stayed in the netherworld. In this way, the people of the human world have no way to arrange a complete set of teleportation arrays after obtaining the auxiliary array blueprints, and teleport from the human world to the underworld.

"Naturally, I won't arrange this formation, I'll just ask casually!" Cheng Yu nodded and said.

He knew more or less about the situation of the teleportation array, not to mention whether there were any drawings of the main array. Even if there were, they would have to arrange the auxiliary array to the Netherworld, isn't this taking off their pants and farting?

"Master, then how do we go back?" asked the Ghost King with some expectation.

Although he couldn't run away, he still wanted to go back to the netherworld. Although it was lifeless, it felt like that place was the place he should be.

"You don't have to worry about that, I'll naturally have a way to send you back. But you have to remember what I told you, if the reincarnation ghost king still attacks the human world in the end, then I will only ask you. Even if you stay in the Netherworld, I will let you be wiped out, don't blame me for not giving you a chance when the time comes!" Cheng Yu looked at the five ghost kings and said.

The five ghost kings shuddered, their faces changed, and they nodded resignedly, and said, "Yes, master! We will definitely complete the task assigned by the master and ensure the safety of the human world!"

They are now tantamount to making a military order, they are just a ghost cultivator, but now they have to protect the safety of the human world, it is really sad to think about it.

But there is no way, who made them Cheng Yu's slaves? Now that Cheng Yu has given a death order, no matter what, he can't let the reincarnation ghost king get away and attack the human world.

Thinking of this, after they go back, they can only let a few ghost kings constantly make trouble for the reincarnation ghost kings, so that they can continue to fight civil wars.

Neither can the Lone Emperor and the Ghost King be destroyed, nor can the Reincarnation Ghost King be destroyed, this is really not a good errand!

After explaining to a few ghost kings again, Cheng Yu's primordial spirit disappeared into this area.

Seeing Cheng Yu disappear like this, the five ghost kings suddenly breathed a sigh of relief.

"My lord, do we really want to go back?" said the four ghost kings with some concern.

"Otherwise, what else can you do? Do you dare not go?" said the Ghost King of Minluo lightly, unable to hear what kind of mood he was in at this time.

But no matter what, the current Mingluo Ghost King's mood will definitely not be good. Originally, he was high in the underworld, but now he has become a slave of a human being, and he can only see the ghost when he is in a good mood.

"However, we have suddenly returned to the netherworld, how can we explain to the reincarnation ghost king?" "Where do the four ghost kings dare not go, this human being is too ruthless, the kind of soul-burning pain that they will never forget, they don't dare to resist him at all."

"I naturally have my own statement, don't worry about this, the problem is how to make the reincarnation ghost king not attack the human world is the problem. The Ghost King said in embarrassment.

"When the time comes, if we let the reincarnation ghost king know that we are making a hindrance, we are afraid that we will die ugly!" said the four ghost kings with some concern.

The Lonely Emperor Ghost King has always been a big problem for the Reincarnation Ghost King, if they secretly help the Lonely Emperor Ghost King to be known by the Reincarnation Ghost King, the consequences are really unimaginable!

"Otherwise, we won't worry about this when we get back to the Netherworld, and we won't be back anyway. One of the ghost kings said.