As for ghosts and vampires? Meng Yuan didn't plan to send out these things, because the vampires had very poor underwater combat capabilities, and ghosts would also be affected by the seawater, so it was the same with or without them.

Three days is not a long time, but it is not a short time. Originally, Meng Yuan planned to use the opportunity to summon soldiers to hide for three days in an attempt to paralyze the mermaid. But people don't seem to be fooled, but they are also preparing for war. This made Meng Yuan puzzled all the time, and couldn't understand how these mermaids found themselves?

If he found himself, why didn't he attack before Meng Yuan formed an army? If not, what are they preparing for war? In short, all this made Meng Yuan look at it very dazed, and he didn't understand what these mermaids thought.

However, since he was ready for war, there was no need for Meng Yuan to give up, so after the last batch of undead were summoned, Meng Yuan immediately launched a war against the mermaids.

Woo~~Woo woo~~~~~

The long horn sounded underwater, and it was obvious that the other party had also discovered Meng Yuan's every move, and at the moment when Meng Yuan ordered the army to set off, the other party also gave a combat order.

Boom~~~~

In an instant, the water was turbulent, making the originally clear sea water become turbid, and the explosion made Meng Yuan dizzy, although there were no fireworks, but the power of the magic explosion was very huge, and the stirred up mud and sand were tumbling in the water, looking more powerful than the explosion on the ground.

The undead moved silently, without shouting, without wailing, without fear, and they remained in formation and moved silently, as if the explosion had nothing to do with them.

Soon, the cannon fodder of the undead rushed to the mermaid's camp with rounds of magic and launched a merciless melee battle.

While the magic of that round seemed to be very powerful, in fact, the first round was the most effective, and the later rounds were much less effective, due to the fact that the first round was dense with undead and the water was still clear, so it was easy to spot the target and strike with precision. The next few rounds were the opposite, after withstanding a round of dense attacks, the undead team was obviously much thinner, and the cover of the muddy water greatly reduced the magic in the later rounds. Therefore, the undead were able to take the opportunity to rush to the mermaid's camp and launch a melee attack.

And at this time, the undead began to exert their power, although the skeletons were only a first-class class, but they were stubbornly standing in front of the mermaid's battle array with their fearless momentum, and then the lichs in the rear began to release poisonous mist frantically forward.

If the poisonous mist is on the ground, the power is just average, because the people on the ground have many ways to prevent the invasion of the poisonous mist, and even only a gust of wind is needed to blow the poisonous cloud away. But in the sea, on the contrary, everything contaminated by the poisonous mist turned pale green in an instant, and the sea water gradually dispersed with the aftermath of the explosion just now, which made the lich's attack power instantly multiply.

In an instant, wails and shouts mingled. After hearing this voice, Meng Yuan had a smile on his face, because the undead clan were all bones and did not have the vocal cords, so those wails were obviously mermaids', so Meng Yuan was very happy~~

However, Meng Yuan's smiling face quickly froze, because he saw a large group of mermaids suddenly appear on both sides and in the sky above, and their movements were also familiar to Meng Yuan, that is, the action of preparing magic!

"I'm rubbing! How did I forget it was in the sea! The sea can run to people's heads! ”

But before Meng Yuan could react, the mermaid gave Meng Yuan another one and let him know what undersea combat was. I saw that a group of even more beautiful mermaids suddenly appeared in the rear, they were wearing equipment that looked like armor, holding a one-meter-long shell, neatly arranged behind Meng Yuan, it was obvious that they wanted to completely block Meng Yuan's retreat. Now it is full of mermaids, both front, back, left, right, and top. And Meng Yuan finally understood why the mermaids didn't attack him for three days, it was obvious that these mermaids were using this time to arrange the battlefield, and then wipe out Meng Yuan! Now Meng Yuan has been completely surrounded by three hundred and sixty degrees without dead ends.

"I'll rub it! Is this a fish? Is this a fish? ”

Meng Yuan roared viciously twice and then immediately activated the stealth device, it was obvious that it was too late to retreat now, if he continued to stay, then Meng Yuan was likely to be bombarded by the other party, so Meng Yuan decisively made a wise choice, that is, to be invisible, and then use these undead to attract the attention of the mermaid, and then quickly leave the battlefield by himself.

As for the direction of detachment? Meng Yuan smiled! The loss is so big, if you don't get some money back, how can it be Meng Yuan's character? And this is also a rare opportunity, so that the mermaids have run out of the city, if it is usual, it is estimated that it will be difficult for Meng Yuan to get in, right?

Therefore, how could Meng Yuan let go of this God-given opportunity? Therefore, after Meng Yuan left the battlefield, he gave an order to the undead, that is, to let them scatter and delay as much time as possible.

As for Meng Yuan himself, he laughed twice and then swam in the direction of the city gate.

Originally, the city gate during the war should have been closed here, but no matter how you look at this battle, the mermaids won, so they actually opened the city gate and groups of mermaids are still rushing to the battlefield. And Meng Yuan also took this opportunity to sneak into the city.

The mermaid's city was beautiful inside, even more beautiful than the scenery Meng Yuan had seen outside. Although the city is surrounded by coral, it is indeed sparkling and beautiful like a fairyland, with many light sources, including fish, underwater plants, and some gem-like things, which exude colorful light and illuminate the whole city beautifully.

And Meng Yuan did not hesitate after entering the city, but sneaked in the direction of the largest building in the middle.

It seems that the mermaids have won the battle, so they don't seem to have the mood of war, and they still go on with their lives peacefully, as if they don't care about the battle outside. They were laughing, playing, chasing each other.

And Meng Yuan only smiled at all this and continued to sneak over, because Meng Yuan's goal was very clear, that is, the other party's palace-like building, whether it was the treasure inside or the mermaid inside, was the target of Meng Yuan's action this time. And Meng Yuan believed that he had only one chance to act, because once something happened in the city, those mermaids fighting outside would definitely come back to help, so what Meng Yuan had to do was to rob as much as he could, and then run away quickly.