Since it was winter, and countless monsters trampled on it, the grass and trees on the wilderness withered, and it was basically bare earth and rubble.

It's about forty kilometers away from Lin'an City, behind the monster army.

Most of the monsters in this vicinity are very powerful, and many of them make Zhang Ran feel a sense of threat, and he doesn't dare to approach easily, so he can only bypass from afar.

From this, it can be seen that most of the monsters who bear the cannon fire in front are weaker monsters, which are commonly known as cannon fodder.

And these stronger monsters, hiding behind, are sharpening their teeth and claws, waiting for their chance.

Zhang Ran leaned down slightly, his size belonged to the very short group among the monsters, which was not eye-catching.

He turned his head quickly, taking in the scenery around him, nervously searching for traces of the so-called hole.

In an area of several square kilometers, looking for a hole, and it is possible that it will be hidden by monsters, the difficulty rises sharply.

Every hour of delay would cause the monsters to advance a long distance, so he couldn't relax right now.

Three hours later, Zhang Ran swept over a piece of land again, only to find that the soil was a little soft.

And there is also new soil.

On this boundary, basically every inch of land is trampled by monsters of several tons.

So this place is extremely abnormal.

Zhang Ran glanced around, but didn't notice the existence of monsters around, so he used his ability to sneak in.

But he didn't notice that behind it, a grass just opened its eyes at this time and saw this scene.

.........

Sure enough, Zhang Ran went deeper, and the underneath was swarthy, and it turned out to be a huge hollow, bottomless.

At this time, he was about fifty meters underground with the help of soil.

And beneath him is the bottomless abyss.

The walls were peculiar, not soil, not rocks, but a peculiar crystal, black, slippery to the touch, cold and piercing.

And it was very hard, and I tried it with my claws, leaving only a shallow white mark on it.

The crystal-made walls support the entire cavern and won't collapse, no wonder it's so strong.

Zhang Ran quietly went down the wall, the air in the cave was not circulating, it was a little stuffy, and it was very humid.

On his head, there is an underground water layer, but it is also isolated by this crystal, and there will be no leakage, but it is inevitable that there will be water droplets condensed on the crystal wall.

As he progressed deeper, the space became more and more open, like a spacious underground plaza.

"Is this the passage they have opened?"

Zhang Ran stood on the ground, and similarly, there was a solid crystal wall under his feet, which was very solid.

There are places above the crystal wall that emit a faint shimmer of light, making it not particularly dark.

Under the fluorescence, Zhang Ran saw a pile of gray-black substance and walked over.

Some of them looked like carapaces that had faded from some kind of insects, and they were very hard, and Zhang Ran crushed them with all his strength.

I took out the communicator and looked at it, and there was really no signal underground.

He groped his way along the passageway, and saw quite a few of them on the side of the road, the kind of carapace material, piled aside.

After walking for several kilometers, Zhang Ran almost felt that there was no end to this passage.

At this time, he suddenly noticed that there seemed to be a little light in the distance, like a sky full of stars, beautiful.

"Have you arrived at the place?"

He couldn't help but be vigilant, when the time came, he just had to find a corner and hide it, and then go back to the ground and call the head office.

Getting a little closer, Zhang Ran finally saw the builder of this project.

Clad in a carapace made of hedrons, their thick forelimbs and sharp claws allow them to dig through the dirt without difficulty.

They resemble gem crystals in the Black Souls, and are clad in armor made of various crystals.

After digging up the earth, they actually ate it, and then secreted a black liquid from their mouthparts, which served as a building material and became the support of the passage.

The construction site is very large, and as far as the eye can see, there are hundreds of these creatures more than one meter tall working hard.

Hold your breath, be still, and slow down.

Zhang Ran quietly reached forward and hid the light blue crystal that Tan Wenwei had given him in a small pile of dirt.

The process was very smooth, the darkness shrouded, coupled with Zhang Ran's excellent concealment, did not make any movement.

Just get out of here and the mission will be a success.

Rumble!

At this moment, the route he had come, the direction of the passage, suddenly there was a loud noise.

"Oops! What's wrong? ”

He didn't have time to dodge, because of the sound, all the gem crystals stopped hearing the sound and looked in his direction.

This kind of insect has lived in the dark for a long time, and its visual degradation is very serious, but Zhang Ran's size is one size larger, which still attracted their attention and caused a commotion.

Rumble!

There was another loud bang, like the sound of something collapsing.

It's too late, you need to leave quickly.

The commotion became more and more intense, and many gem crystal insects were already moving in this direction, faintly showing a tendency to surround them.

Although he didn't know what kind of accident happened behind him, Zhang Ran knew that he needed to evacuate here as soon as possible now, otherwise he would only have a dead end if he attracted powerful monsters.

You must know that there are countless powerful monsters in this area, among which there are many B-class monsters, and there are even A-class monsters.

Zhang Ran slammed his foot on the ground and threw backwards, but his move angered these gem crystals, and they also jumped up and pounced on him.

"It's so good at jumping."

A gem crystal worm actually jumped directly in front of him from a distance of hundreds of meters, and a pair of sharp claws directly grabbed him.

Boom!

Zhang Ran dodged the blow, and at the same time kicked on the spar carapace on its body, kicking it out more than ten meters away.

The gem crystal worm rolled on the ground and got up, but it didn't suffer any damage.

Roar!

There was another loud roar from the direction of the passage, and the sound wave almost turned into substance, like a blade cutting into Zhang Ran's scale armor.

Although he was not injured, Zhang Ran knew that this was probably the most powerful monster he had ever seen, and the roar alone had such a lethal power.

Zhang Ran's eyes were calm, he understood that if he was not careful, he might really die today.

A snow-bright giant blade took shape in his hand, this is a slashing knife, he wants to kill these monsters as soon as possible.