Don't look at the back and forth between the two sides now, but when the physical strength of the mermaid clan is almost exhausted, it is the best time for the merfolk and the dark creatures to officially attack!

Both sides obviously knew this, so the merfolk were trying their best to stall for time, while the merfolk were trying to end the battle as quickly as possible.

However, it is clear that in the case of a close match, it will definitely be easier to delay the time than to completely defeat the other side, so the merfolk now have a superficial advantage, but in fact they are limited everywhere.

In the face of the enemy's attack like teasing pets, all the mermaids held back their anger, but the elders never gave orders, so they didn't dare to act rashly, and now after seeing the appearance of the Great Elder and the Fourth Elder, all the mermaids' eyes were focused on them.

"Organize all the mermaids to assemble......" Hearing the Great Elder's order, all the merfolk became excited.

They all knew the strength of the Great Elder and the Fourth Elder, and the Fishmen had also invaded the Mermaid Clan several times before, but each time they were repelled by the Three Elders, the Great Elder, the Third Elder, and the Fourth Elder, and they believed that this time they would definitely be able to achieve the same result!

Just when the front line of the mermaid clan was full of fighting spirit, the peace in the palace was also broken.

If Ning Shi saw the mermaid who had died in front of the four elders before, then she would definitely be able to find that there was a lot of pollution in that mermaid's body.

If Su Yu knew about this matter, she would definitely be able to surmise that it was the merfolk who began to use the hole cards she had buried in the mermaid clan...... That's pollution.

The inexplicable mermaid who died before was actually polluted and invaded the shark bead, depriving him of the energy that supported his life force, so he died instantly, without warning.

And the black mass that the Great Elder dug out of his corpse was actually a dark creature that had been contaminated and had begun to reproduce itself.

Under normal circumstances, it is difficult for dark creatures to reproduce, unless there is a pollution source as an energy support, but because the pollution invades the shark beads and takes enough energy, as long as the pollution in the bodies of these mermaids who die due to pollution is not cleaned up as soon as possible, it will grow rapidly with the power of the shark beads.

At this time, in the palace, the invisible black mist gradually spread, enveloping the mermaid royal palace like an ice castle.

There are many mermaids who have faintly found themselves with symptoms of discomfort, and they only think it is a delusion at first, until the symptoms of discomfort become more and more severe, and other merfolk around them are in the same situation as them, they realize the problem.

"Don't you all feel uncomfortable......

"I thought I was the only one...... Let's go to His Highness first and see what is going on on His Highness's side......"

These people were all around the four princesses, and one of them chose one of them to go to the fourth princess to report the matter, only to find that the fourth princess, who was supposed to be in the palace, disappeared out of thin air.

The merfolk who found the palace empty endured their discomfort and immediately left the palace to inform the other merfolk outside of the news.

"Your Highness is gone!"

"How is that possible? Didn't we come back with Your Highness? ”

"yes...... We've been at the door and I haven't seen any mermaids go out......"

"I didn't see it either, didn't you look carefully, Your Highness may be in other rooms of the palace."

"Impossible, I have searched every room, and I also called His Highness, but no one responded to me, and even His Highness's personal guards are gone!"

……

At this point, even if they were stupid, they could find out that the situation was wrong, so they didn't care about making their own decisions, some of them stayed behind, and some of them scattered to find several other highnesses and elders.

This was hard to find, and they actually happened to meet people from other palaces in the palace.

As soon as a group of mermaids communicated, it was terrible, and all the highnesses in the entire palace, except for the eldest prince, all disappeared!

Although the eldest prince has not disappeared, it seems that the situation is not very good.

It is said that when the five elders went to look for the eldest prince, they found that no one responded, and the five elders felt that the situation was not right, so they broke in directly, and found that the eldest prince was lying on the ground with a bloodless face, and his life and death were unknown.

But fortunately, because it was discovered in time, the eldest prince's life was not in danger, but he was still unconscious, and the five elders were still taking care of it over there, and the matter at hand was temporarily handed over to the six elders.

The Sixth Elder is the youngest of the six elders, and she is also the least powerful, but because of her rich potential, she still became an elder, but because of her strength, she only arranged a job like the Fifth Elder to take care of the mermaid clan's treasure house for the time being.

If the Fifth Elder was assigned this job because she was trustworthy, then the Sixth Elder was assigned to this job purely because she could only do this at the moment, after all, there was no technical content and the requirements were low.

Therefore, it was the Sixth Elder who suffered the most today, because she had never dealt with such a big, complicated, and difficult job before.

The most fundamental reason for this is because something happened to the second elder.

Because the second elder has an accident and can't work, one of the three elders and the fourth elder needs to share his work, otherwise the work of this barrier should be handed over to the second elder, and the third elder and the fourth elder stay one to help the fifth elder deal with the affairs in the palace, and the other one goes out to help the great elder.

But since the matter has happened, even if the six elders grit their teeth, they have to deal with the affairs in the palace.

The five elders are solving the matter of the disappearance of the five highnesses, and the sixth elder is responsible for arranging and managing the other mermaids in the palace.

After learning about their physical condition, the six elders immediately arranged for the merfolk to examine them, because there were too many victims, so the merfolk doctor's doctors were too busy for a while, so they could only choose a few more serious merfolk to treat them first.

The strength of the physician who was able to be found by the six elders at this time was definitely not simple, so they quickly discovered that the source of these mermaids' discomfort was because of pollution, but they didn't know about the taboo of the mermaid clan's weakness, so they didn't expect that this pollution actually invaded the shark bead.

Therefore, the treatment they give is only a treatment for superficial contamination, which can only alleviate the symptoms of discomfort in these people, but not the root cause.

After these doctors discovered this problem, they could only conduct a deeper examination of these mermaids, and at the same time, they also reported the matter to the five elders.

At the same time that the five elders learned the news, the doctors who stayed behind also discovered an important piece of information that made them break out in a cold sweat......