Ning Yu took out all the soul gems, then transformed and absorbed them, turning them into attribute points and the power of Akasha.

The two people's progress was unusually smooth, and there were even no pursuers to stop them as expected, which made the two people a little suspicious.

They had unknowingly moved very far away from their starting position. These underground passages were interconnected, a bit like building a huge energy transportation network.

Going further, a relatively large square area appeared on the map, and the structure of the surrounding passages began to become more complicated.

“We may have reached a hub or a central location.”

The two of them hid in the dark. Ning Yu took out bread, strawberry milk and other food from the system space and handed some to Shen Yiyue.

"Shall we split up? Let's explore in two directions."

Shen Yiyue suggested that she felt that if they split into two paths, they would be able to destroy the altar and explore faster.

"No, don't set such a dangerous flag."

Ning Yu refused outright. According to this scenario, if they really split up, one of them would definitely be in danger, and they would be too far away to be rescued.

Such plots are too common in film and television works.

"Okay, got it."

Shen Yiyue gently leaned her head on Ning Yu's shoulder, enjoying the moment of tranquility in the darkness.

Ning Yu stopped talking. She couldn't see the other person's face in the dark. She could only feel the other person's breath and temperature.

"ah!!!"

A scream suddenly broke the silence, and the two men immediately put away their food and stood up.

They could all tell that it was a human voice.

However, there were clearly no numbered altars in the square area ahead, which made the two people curious about what was happening there.

"Go there, there seems to be a ventilation duct."

As they got closer to the area, there were more facilities. Ning Yu pointed to a mesh partition above and fired the hook over.

Shen Yiyue followed closely behind Ning Yu. Ning Yu first lifted the partition and jumped on it. Then he pulled Shen Yiyue in with one hand and then closed the partition.

After that scream, there was no other sound, and everything seemed to be quiet again.

They moved forward along the ventilation duct, looking down at each partition they passed.

The area below looks a bit like a factory, with various mechanical facilities of different shapes placed there, and glowing liquids being transferred between them.

Following the conveying lines and looking towards the end, there is a tall cylindrical device. In the center of the device are two finger-like probes, pointing to the center of the device.

All the liquid gathered into the device, and the tip of the probe in the center of the device was emitting a light blue light, as if it was carving something.

Soon, a full glowing ball was condensed by the probe in the middle like 3D printing.

At the moment it took shape, two pyramid-shaped pentahedrons fell simultaneously from the upper and lower sides of the cylindrical device.

The bottom sides of the two pentahedrons are both hollow, and they are mirror images of each other.

They are used to assemble together to form an octahedron, which just covers the luminous object.

Now Ning Yu and Shen Yiyue both understood that this was one of the factories that assemble soul gems.

But where did the energy come from? With this question in mind, they continued to move towards the source of the screams.

A pool of bright red blood slowly seeped out from the crack of the door of a large closed room, which immediately caught Ning Yu's attention.

"There."

She and Shen Yiyue indicated the location, and the two of them observed the distribution of the ventilation ducts and continued to move to the ventilation duct in the enclosed room.

When they got closer, both of them vaguely heard some humming sounds.

That is the struggling sound that can only be made when a person's mouth is sealed.

"Are there any survivors trapped down there?"

The two men looked through the partition and saw what was happening in the room below.

A dozen people in dirty clothes were tied up tightly and thrown in the corner of the room, like lambs to be slaughtered.

They seemed to be tortured by something. Their bodies were shaking and the painful moans from their mouths were muffled by the white cloth covering their mouths.

In the other corner of the room, there stood more than a dozen armed soldiers, guarding a square tent covered with black cloth.

Soon, the poor man who was tied to the ground was dragged by the soldiers and thrown into the tent.

Then came muffled howling and screaming, as well as teeth-grinding biting sounds.

There was a pool of blood at the door, as if someone had tried to escape and was shot dead there.

It failed without a doubt, and that's probably why the screams came from it.

After a while, a zombie wearing a hood was led out. From the appearance of his clothes, it could be identified that it was the poor guy who had just been led in.

There was a big hole bitten on its body, and its body had become much shriveled, as if it had been sucked dry by something.

But even so, it seems to have some other value that can be exploited.

So it was dragged by a soldier using a special traction tool, just like pulling a cow or a horse, and taken to another place.

“Why do you do this?”

When Shen Yiyue saw this scene, she couldn't help but frown.

"I guess those people on the outskirts are probably all awakened ones."

Ning Yu pointed at the remaining people on the ground. There was a ring-shaped object like a torture device around their necks, which was tightly strangling them.

"Perhaps that thing suppressed their abilities."

"This is probably the true origin of the Soul Gem."

Ning Yu already had a vague guess in her mind.

The soldiers below did not drag anyone in at this moment. Instead, two of them walked into the tent and led out a semi-cyborg glutton.

There was blood all over its mouth, and it was obvious that it was the culprit that had bitten the poor guy and turned him into a zombie.

It is not quite the same as an ordinary glutton, not in terms of the cybernetic parts of its body, but in that its entire body is covered with some strange crystals.

These crystals were embedded in its body, or seemed to be growing out of its flesh, which looked very uncomfortable visually.

At this moment it had been controlled, and under the guidance of the soldiers, it walked out of the tent very woodenly. Its walking posture was not very natural, and the crystals on its body also made it seem difficult to move.

Seeing this, Ning Yu basically understood what happened here.

The so-called soul gem is probably something constructed and manufactured in such a bloody way.

This glutton that was taken away will probably become a part of the energy in the light path outside.