"It's a bit of a hassle..."

After killing a small team of Minwei zombies, Liu Wen frowned and muttered to himself.

A large number of zombies came down from the place where Liu Wen came down before and entered the underground labyrinth of mutant rats.

And the counterattack of the mutant rats is also near this grove.

As a result, Liu Wenliu faced a very serious problem, and he could not return the way he came.

Liu Wen, who had lost some direction underground, could only frown and move in the opposite direction.

It is not an exaggeration to say that if Liu Wen digs a hole from here and returns to the ground at this time, there will definitely be a large number of mutant rats and zombies around him.

Liu Wen, who didn't want to stand under the dangerous wall, could only choose to stay away from this area.

And Liu Wen will definitely not be peaceful along the way.

Because it was reversed, Liu Wen met the most mutant rats.

Ordinary mutant rats only have the strength of the top grade three, but they have the strength of twelve people, and they are not as good as ordinary Liwei zombies and Minwei zombies.

In the face of these mutant rats, Liu Wen didn't even need to fight in close combat.

Shout!

Shout!

Shout......

As the metal bow in Liu Wen's hand continued to shoot arrows, the top-grade third-grade mutant rat in front of Liu Wen was completely killed in seconds.

As for the occasional spiritual mutant rat, it is not Liu Wenyi's enemy at all.

On the side of the mutant rat swarm, the main enemy is obviously zombies.

Therefore, the mutant rat group did not specifically mobilize a strong spiritual mutant rat group, or the immortal mutant rat came to Liu Wen's unhappiness.

Moreover, in the past half a day, Liu Wen also discovered a problem through observation and reasoning, that is, the mutant rat of the immortal product not only has a powerful elemental attack ability, but also has wisdom no less than that of a human.

Liu Wenke still remembers that these mutant rats were unbearable when they encountered zombies at the beginning.

Even if it is a mutant rat of spiritual products, when it is encountered by zombies, it is easy to be killed by zombies.

However, it didn't take long for the entire mutant rat group to change after the first immortal mutant rat appeared.

The mutant rats, who only knew how to fight against stupid and zombies, suddenly became aware of teamwork and sneak attacks.

The mutant rats of the spirit products began to huddle together and hunt zombies easily.

"It should be almost!"

"The mutant rat that dealt with me has begun to become organized, and I think that I should be paid attention to by the immortal mutant rat in charge of commanding!"

I was glad in my heart, although Liu Wen killed no less than tens of thousands of mutant rats along the way, but he did not encounter any resistance.

When Liu Wen was moving, he felt that the mutant rats that appeared began to huddle a little, Liu Wen no longer continued to move forward, and chose to dig a hole upwards immediately.

Liu Wen was targeted by mutant rats, and he himself was not surprised.

First of all, in the effort of this meeting, the number of mutant rats killed by Liu Wen has reached tens of thousands, among which there are many Wang Pin mutant rats.

With such a big loss, it stands to reason that it should have attracted the attention of the immortal mutant rat with wisdom.

In addition, Liu Wen estimated that he may have approached the center of the underground labyrinth excavated by the mutant rat colony.

This underground palace can't be as simple as this mutant rat colony, it also includes breeding and breeding.

If you don't get it, the resistance that Liu Wen is encountering now is increasing, and it should be that he is close to the activity area of this mutant rat group cub.

Thinking of this, Liu Wen naturally chose to leave as soon as possible.

Otherwise, it will not be fun to be targeted by the mutant rats of the immortal products.

"I grass..."

"Isn't it?"

"At least a 1 in 10 probability, just let me stand up?"

Liu Wen underground, especially in the underground maze of mutant rats, Liu Wen was obviously a little confused.

When Liu Wen finished digging the upward passage and returned to the ground, looking at the tall concrete walls around him, Liu Wen was stunned.

No wonder Liu Wen was confused, the place where he appeared at this time was already in the giant fortress.

It stands to reason that Liu Wen entered the underground grove before, some distance away from the giant fortress.

And Liu Wenneng can choose the location of the giant fortress, where to play is the same as the roulette lottery, the probability is extremely low.

But Liu Wen never imagined that this possibility was only a one-in-ten probability, and he should really be drawn.

"This should be the second wall of the fortress!"

"Mom sells batches, didn't you say that I was in the innermost part of the fortress?"

After checking the surrounding environment a little, Liu Wen's heart swelled up with a burst of unhappiness.

You must know that Liu Wen entered the fortress of the zombie group before, that is, he explored near the outermost layer of the city wall.

Even when he was helping Minako save her parents, Liu Wen didn't go too deep.

This time, it was good, and it appeared directly inside the second layer of the city wall.

Inside the second layer of the city wall, it is obviously where the zombies live, and it should also be the place where the flying zombies live.

What made Liu Wen a little fortunate was that the battle between the zombie group and the mutant rat group was relatively fierce, and there were basically no zombies here.

"Crystal nucleus?"

"Beast Crystal?"

"Lost crystals?"

"Wing Jing?"

"My day..."

Just when Liu Wen was thinking about how to cross the area full of zombies for several miles, Liu Wen was surprised to find that not far from him, there was a small pile of shiny things.

When Liu Wending looked over, what made Liu Wen breathe a little faster was that he found that this small pile of shiny things was full of crystal nuclei.

The crystal nucleus itself is not large, and it is not even as large as a glass ball that children play with.

And the pair that Liu Wen saw was piled up there, at least one or two meters high, and the area Liu Wen didn't count.

Liu Wen estimates that the number of crystal nuclei in this small pile should be no less than one million.

The only thing that made Liu Wen a little disappointed was that the vast majority of these small pile crystal nuclei were ordinary third-level beast crystals.

Although he was a little disappointed in his heart, he did not delay at all and waved his hand to put this pile of crystal nuclei into the dimensional space.

"There's more!"

"There's it too!"

"Mom sells batches, how much is this?"

After collecting this small pile of crystal nuclei, Liu Wen keenly found that around him, he saw at least a dozen piles of crystal nuclei.

Moreover, the height of some crystal nuclei is as high as three or four meters, and the area is several times that of the pile he received.

The two corpse emperors Ying Zheng and Pu Amei, whom Liu Wen met before, obviously did not have the habit of collecting crystal nuclei, except for the mourning crystals, other crystal nuclei could not be looked down upon, which made Liu Wen think that all the corpses should be like this.

It's just that at this time, seeing the piles of crystal nuclei piled up everywhere in this group of corpses, the total number is more than 10 billion, Liu Wen suddenly felt like he was stunned by happiness.

In the face of huge interests, Liu Wen was already a little dizzy, completely ignoring the fact that this is the lair of zombies, and began a crazy collection journey!