While Chen Gu was studying the creatures that appeared in the rotting swamp, the battle in front of him also reached the edge of the swamp.

Chen Gu's corpse eater vine quickly retreated.

Only four of the six ghoul vines sent out were left, and they were all wounded, and many of the vines on their bodies were severed.

It seems that this strange creature is still very strong in the underground.

Since their debut, the ghoul vines under Chen Gu have been fighting underground and can be regarded as invincible.

The previous ones were either consumed on crafting or elsewhere.

I've never seen this situation like being knocked out.

This made Chen Gu think of an idea in his heart.

"I haven't expanded the number of ghoul vines in the past, that's because these ghoul vines are enough, and now it seems that what I think is too simple, only a large number of synthesis is the foundation of survival in such an environment.

Ghoul vine, go find the materials. ”

Chen Gu gave the order while withdrawing from the confines of the rotting swamp.

The material for the ghoul vine is best found in the woods.

And this time, when looking for materials, there was no need for Chen Gu to deal with them personally, as long as the original corpse eating vine was sent out, a large number of materials would soon be available.

Chen Gu synthesized them again and again, constantly synthesizing those materials into corpse vines.

It's just that this time, Chen Gu didn't use these corpse eaters as new synthetic materials to increase the level of the corpse eaters.

The current corpse eater vines were not the large corpse eaters with eighteen vines in Chen Gu's hands, but the basic ones that only had six vines that appeared at the beginning.

This was enough for Chen Gu.

What Chen Gu needed was the number of corpse eaters, and what they needed was their ability to fight underground.

Looking at the batch after batch of corpse-eating vines in his hands, the smile on Chen Gu's face became more and more obvious.

In the underground battle, Chen Gu has never been afraid of anyone.

It wasn't until the number of this corpse eater vine exceeded a thousand that Chen Gu came back to the edge of the rotten swamp.

He pointed his hand forward, and the ghoul vine rushed into the rotting swamp.

Then Chen Gu took the materials again, and sat on the edge of the rotten swamp, constantly synthesizing.

The synthesized corpse eater vine will leave Chen Gu as soon as possible and find new materials for Chen Gu three times before entering the rotten swamp.

As for the other troops under Chen Gu, they were all around Chen Gu, and they didn't have the idea of stepping into the rotten swamp for half a step.

They all know that the mosquito colonies above the rotting swamps are the worst of all.

All creatures that rush into the swamp will be sucked by these mosquito swarms.

Chen Gu didn't want to fight these guys, Chen Gu's plan this time was to send the ghoul vine in and kill all the way to the depths of the swamp, looking for the Wuchao City that was supposed to be in this location.

It's just that after those corpse eaters were sent out, Chen Gu could only see the experience points of jumping from time to time, but he couldn't see the final results, how they fought, how many enemies they killed, and how many were killed, Chen Gu was not clear at all.

The only thing he could do was keep synthesizing new ghoul vines and releasing them into the rotting swamp when he had enough materials.

Chen Gu kept synthesizing, synthesizing like this.

Until he heard an angry roar from the depths of the rotting swamp.

Hearing this voice, Chen Gu was also stunned for a moment, there were still living things in the depths of the rotten swamp.

Then Chen Gu saw three snake necks more than ten meters high coming out of the rotten swamp, and the three huge snake heads were constantly writhing, as if looking for the enemy.

Because they were far away, Chen Gu couldn't see the details of the snake head clearly, he could only see that the three snake heads were red, blue, and green.

As for whether they were dead or alive, because they were too far away, Chen Gu had no way to judge through the details.

But Chen Gu understood one thing, this should be one or part of the hydra.

When it wasn't provoked before, Chen Gu could still treat it as if it didn't exist, but now it's different.

"All the ghoul vines retreat."

Chen Gu made a choice as soon as possible, and he quickly jumped into the vine carriage and headed out.

After driving the vine carriage away from the rotten swamp twenty kilometers away, Chen Gu stopped.

After waiting for about ten minutes, his ghoul vine returned a part.

Chen Gu took this opportunity to take stock of the situation of the corpse eater.

He kept synthesizing and sending out before, and now the number of corpse eaters that can come back is about 517.

This is clearly not in line with the amount he synthesized before.

I think the rest died in the rotting swamp.

However, Chen Gu's corpse eating vine was not without gains.

All of the Necro Eaters have reached level 3, and some have even reached level 4.

You must know that when the ghoul vine was first synthesized, it was only at the level 1 level.

From this you can see how difficult it is for them to fight beneath the rotten swamps.

Now they all returned to Chen Gu's side, and also let Chen Gu know the situation under the rotten swamp.

In the underneath the rotten swamp, there are about 100,000 of them.

They are not living creatures, but they are not dead creatures either, they cling to corpses buried in the depths of the rotting swamp.

As long as they are out of range of the corpse, they will not pursue.

At the same time, if the nearby corpse is not controlled by this strange insect, there will be no other strange insects coming.

For this reason, the ghoul vine cleared a way out, and the subsequent ghoul vines continued to enter the depths of the rotting swamp.

I thought the rest of the week would go a little smoother.

But they never imagined that there was a rather huge snake ball hidden in the depths of the rotten swamp.

The three snake heads that Chen Gu saw before were just the part of the snake ball that woke up.

There are at least eighteen more snakeheads that are active underwater.

The Necro Vine lost at least half of its battle with them.

If it hadn't been for Chen Gu's order to retreat, maybe the corpse eaters would have all died by now.

"A giant snake ball?"

Chen Gu had thought about the situation under the rotten swamp, but he really didn't expect it to be like this.

"Did the snakes chase you when you withdrew?"

Chen Gu quickly asked about the situation.

However, the response was that there was no information about pursuit, as if the snake ball had been asleep, and when no one approached, the snake ball would not move at all.

Chen Gu suddenly had an idea in his heart.

Maybe this snake ball was a means left behind by the original Nest City.

This may not be bad news.

Thinking of this, Chen Gu quickly took out a written order, imprinted it on it with the breath of the elf, and then beckoned to a corpse vine.

"You take this one more time to that swamp, and if you come across a snake ball, take this out and give it to it."