They cautiously made their way into the pit, and found that there seemed to be a fierce war going on around it. With-Dream- . lā

Zhou Yang was not surprised at all, the reason why the mutant ghoul appeared here was because he was attracted by a terrifying battle.

On one side of the battle are humanoid creatures devoured by mutated ghouls, and on the other side, a group of powerful spirits.

These spirits are not weak, each of them has the strength of the realm of all things, but that humanoid creature is even more terrifying, and the spirit of the food tripod estimates that it has the strength of the Jindan or even the Purple Mansion realm at the least.

So those spirits were quickly slaughtered by this humanoid creature, and this was the end of the matter.

But then came several incredibly powerful spirits, and they easily crushed the humanoid creature.

The spirits didn't seem to want to kill the humanoid, and wanted to capture it alive.

Unexpectedly, at the last moment, the humanoid creature fled.

It was also at this time that the mutant ghoul seized the opportunity to sneak up on the creature and devoured it.

After devouring the humanoid, the mutant ghouls grew in strength and came to this place again to attack the spirits.

The mutant ghoul is stronger, so no one in this place can stop its sneak attack, and in the end, except for one or two fish that slipped through the net, the rest of the spirits were devoured by the mutant ghoul.

But there was one thing that made Zhou Yang jealous, because in the description of the Spirit of Eater, Zhou Yang knew that the mutant ghoul did not encounter the spirits that killed the humanoid creatures in the end.

Therefore, when Zhou Yang entered this pit, he was extremely cautious, worried that these spirits would make a comeback.

From the description of the Spirit of the Food Ding, Zhou Yang estimated that these spirits were likely to have reached the Purple Mansion Realm.

Although Zhou Yang is not afraid, it is also a trouble.

The group walked cautiously towards the pit, and found no one else along the way.

No danger was found along the way, which also emboldened them, and they split up in pairs and divided into two groups to search for the pit, hoping to find some useful clues.

Zhou Yang and Wang Yuyan were in a group, they searched in this pit, and found no one else, but they saw many rooms.

These rooms are filled with countless measuring cups, flasks, and other utensils, and it seems that they are all research rooms.

"Research room?" Zhou Yang said to himself, if this is a research laboratory, then what is the object of research, and where are those researchers?

Could it be the spirits in the mouth of the Eater's Spirit?

Zhou Yang knew that the time when the mutant ghoul entered this ruin was actually not very far from when this ruin had just merged into this Yin Capital.

But at that time, there were already such terrifying spirits in this ruin.

Zhou Yang didn't know when these spirits entered the ruins.

Zhou Yang had some doubts in his heart, but there were no clues, so Zhou Yang couldn't find any clues.

"Brother Zhou, come over here" At this time, Wang Yuyan's voice came from beside her.

Zhou Yang's heart tightened, and he hurriedly ran over.

Seeing Wang Yuyan standing on the side without danger, Zhou Yang breathed a sigh of relief.

"What did you find?" After knowing that Wang Yuyan was not in danger, Zhou Yang was also curious about what she had found.

"Just come and take a look," Wang Yuyan said with a little surprise, obviously surprised by what she had found.

Zhou Yang came to Wang Yuyan's side and looked at the small room in front of her, and soon, there was a hint of surprise in his eyes.

"What is this?" He walked into the small room, a look of surprise in his voice.

In front of his eyes, there were huge glass silos, and in these glass silos, there were various biological necromancy, soaked in some kind of liquid.

There are even unknown races.

"Are these races the subjects being studied?" After Zhou Yang was surprised, he quickly figured out the situation here.

Obviously, these races are the subject of study.

It's just that Zhou Yang didn't expect that the research objects in this research room would be so wide, from living beings to dead souls, to all kinds of alien races, almost all-encompassing, and even many races were unrecognizable to Zhou Yang.

"What are they trying to figure out?" The weekend was even more confused.

He and Wang Yuyan walked into this research warehouse, and found that it was gradually going deeper and deeper into the ground, and saw a larger research room.

There are numerous research bins in this research room, but some of them have long since broken down, and the subjects of them have long since left.

Zhou Yang felt that the humanoid creature that the mutant ghoul had devoured before might also be one of the subjects of this study.

He walked up to one of the research chambers, this was a race similar to the three-headed dog of hell, and it was not difficult to see its ferocity just by its appearance.

But at this moment, this creature similar to the three-headed dog of hell has long since lost any breath, and it is obvious that it has been dead for a long time.

He continued to look at the other research bins, which were being studied by a myriad of strange subjects, almost any race.

But they have a common feature, that is, they have all been dead for a long time, and Zhou Yang opened the Heavenly Eye to look at their death time, and found that the time of their death was almost the same time period.

"What happened at that time?" Zhou Yang wondered in his heart, "Is it when that terrifying existence is attacking the city?" ”

Zhou Yang felt that this should not be the right answer.

He always felt that these laboratories should have been built after the destruction of the city

This was not Zhou Yang's unwarranted speculation, because he had seen some records of this city.

In the records, this city was once a huge city, and it was also a hegemon in the underworld on that side of the original world.

But one day, this city provoked a certain terrifying existence, and was easily destroyed by others.

However, this is not the reason why Zhou Yang guessed that these spirits came to this city later.

The main reason is that Zhou Yang has seen in the records that this city used to be the territory of the Bone Clan, and the Bone Clan is very repulsive to ghosts, and even the two parties will find a way to devour each other when they encounter each other.

The relationship between the two races, like the corpse race and the ghoul, is that they are both naturally compatible races.

As a result, the Ghost Clan usually can't live in peace with the Bone Clan.

This is also Zhou Yang's guess that these spirits, that is, the ghost clan, came to this city after the city was broken.

However, Zhou Yang is very strange, how could these ghosts come to this city to do research?

Or are these ghosts not from the same world as this bone city?