Thea slowly breathed a sigh of relief after sending away the evil spirit powerhouse Hax.

She turned her head to look inside the institute, where most of the robots worked were made by researchers.

The creatures that can reach the fifth layer of the abyss are all first-class powerhouses, but this is not the case for robots.

Because as long as the robot has enough materials, it can be made directly in the land of ten thousand bones.

There is no harm to using robots in the country of ten thousand bones, except that it will age faster due to environmental problems.

It is precisely because of this that the sixth-layer research institute of the Abyss, which has accumulated over countless years, can establish a steel empire belonging to evil spirits in this gray and boundless world of bones.

With apprehension, Xia walked into the central research room of the institute.

The research room was anchored to the center of the huge ravine outside by a large boom.

The Six Underworld Crowd paid the price of the lives of many evil spirit powerhouses, and determined that in the deepest part of that ravine, it was the sixth layer of the Abyss-Boundary Ruins.

It was a realm where no living being had ever reached except the Lord of the Underworld.

The purpose of the existence of the Sixth Floor Research Institute is to explore the mysteries in the depths of the Realm Ruins.

There is only one researcher in the central research room, and in order to stay in the land of ten thousand bones longer, it has converted its whole body into a machine.

In addition to the brain, which is used for thinking, the whole body is made of high-precision machine parts.

"Dr. Rhein, what's going on. ”

Xiya, who walked into the research room, took a big look at the situation in the room.

Dr. Rhine was wearing a white lab coat standing in front of the operating table, and his exposed feet, hands, and head were all made of machinery.

In the corner of the research room, there was a pile of skeletons that had just been brought in.

The skeletons in the cage were all unconscious, completely unaware of where they were.

On the wall to Thea's right, there are several liquid culture chambers. The creatures that were being cultivated were strange creatures that looked like a large mass of silt.

Those silty creatures had eyes, small mouths, but no noses.

The body was full of mucus, like a slug, and it was very disgusting.

But those strange things are the most important research results in the six-story research institute.

Because of those silts, I've been to the sixth floor of the Abyss!

The most important research content of the Central Research Institute at present is to see what will happen to the living beings after entering the sixth layer of the Abyss.

This matter is very important, because if you want to explore the sixth layer of the abyss, you must at least ensure that the evil spirit must be alive after reaching the sixth layer.

In the beginning, Dr. Rhine used specially sent evil spirits for his experiments.

After sending the evil spirits to the ruins through a crane made of ghost gold, when they were pulled up, there was nothing left in the crane, even the soul was gone.

Dr. Rheinland was so puzzled by this situation that instead of giving up, he continued to bring in all kinds of evil spirits for experiments.

But in the end, I got nothing.

Until one day, the evil spirit that was pulled back turned into a strange creature like silt.

Dr. Rhine was thrilled by the huge discovery.

After entrusting the task of investigating the characteristics of creatures to other evil spirits, it devoted itself to the study of how strange creatures were born.

Later, after layers of investigation, Dr. Rhein determined that when the evil spirit was sent to the Nether Ruins, there was abyssal blood concentrate embedded in his body!

With this clue, Dr. Rhein began to inlay the demon's body and send it to the ruins.

Result none

In one case, the spirits that were pulled up became all sorts of silt creatures.

Even if the sludge creature was sent back to the sixth layer of the Abyss, it didn't change in any way.

Later, Rhine changed the type of ore, and experiments proved that only the Abyssal Blood Concentrate would work.

Although these research results can cause a sensation in the underworld, they are not enough for the Six Underworld Masses to start exploring the six layers of the Abyss.

Preliminary research results can only prove that the boundary ruins are dangerous enough to directly alter species.

It's worse than death.

Thinking that he was a human being yesterday and has become a dog today, no matter who it is, it must have collapsed in its heart at that time.

Not content with just making creatures of the sludge, Dr. Ryan began to have the Six Underworld gather a large amount of Abyssal Blood Concentrate.

It was prepared to expect different experimental results by changing the variable of Abyssal Blood Concentrate.

However, even if the evil spirit was allowed to enter the sixth layer of the Abyss wearing the armor made by the Abyssal Blood Concentrate, all that came up was a little larger red sludge than before.

The results of such a progressless experiment almost made Dr. Rhein's whole body collapse.

Until one day, when Rhine went to the outside of the research institute to relax, he suddenly had a flash of inspiration, and he set the target of the next experiment on the body of the necromancer.

Since the living beings will turn into silt after entering, what will the dead become when they reach the sixth layer of the abyss?

With this in mind, when the skeletons were sent to the research institute, Rhein immediately began experiments.

However, when Dr. Rhein, who was full of interest, pulled the crane containing the skeleton back from the sixth floor of the Abyss, he still saw a white lump of mud creatures.

However, unlike evil spirits, skeletons do not need to prepare blood concentrate to turn into silt creatures.

Dr. Rhein then tried to inlay the body of the skeleton with Abyssal Blood Concentrate.

But in the end, it was still a lump of silt creatures that hadn't figured out what it was.

Faced with such research results, Dr. Rhine was somewhat anxious.

If no decent research results are produced, then the grand Abyss Six-Layer Research Institute will not be supported by the funds of the Six Underworld United, which will undoubtedly be a catastrophe for Dr. Rhine.

In order to get out of this situation, Dr. Rheinland decided to resort to extraordinary means.

That is to use the Great Elder of the Bone Skull Clan as an experimental subject to see what will happen if he is thrown into the environment of the sixth layer of the Abyss.

The Skeleton Elder carries part of the will of the Ten Thousand Bones Kingdom, and Dr. Rhine believes that it will bring him different research results.

However, there will only be one elder per Skeleton tribe, so the materials for the experiment are very valuable.

In order to ensure the success of the experiment, Dr. Rhein wore armor made from a large amount of Abyssal Blood Concentrate onto the body of the Skeleton Elder.

And now, the experiment is ready!

Dr. Rhine, who was standing in front of the operating table, saw Thea come in and said in his own electronic voice:

"The experiment is ready to begin, and the next moment may occur that will change the entire history of the underworld. ”

Thea of the Heavenly Demon Spirit Clan frowned as he looked at the skeleton elder who was still sitting quietly in the transport cabin made of Ghost Death Gold.

"Why don't you directly use the elders as research materials, can't you use ordinary skeletons for experiments first? ”

Dr. Rhein shook his head: "It's useless, ordinary materials will only get those silt creatures." With it, it's a different story. ”

"No, you are wrong, evil spirit. ”

The elder in the transport cabin transmitted through the Yin Qi, "All you get is a monster from the abyss. ”

"What an abyssal monster. Thea stepped forward and asked, "Do you know what's in the ruins?"

As a commissioner sent by the Six Underworld to investigate the six layers of the Abyss, Thea is of course very curious about what is inside the ruins.

However, Elder Skeleton did not answer Thea's question, and instead fell into a long silence.

Seeing that the other party did not speak, Dr. Rhine was urging it again with curiosity about the unknown, so Dr. Rhine, who did not want to waste time, slowly raised his hand.

"If it really knows what's inside the ruins, then it's sure to be able to bring us useful information!"

With that, Dr. Rhein pressed the red button on the workbench. The transport cabin that the Skeleton Elder was riding in descended several thousand meters with a "boom".

"Wait!"

Thea didn't have time to stop it, "It shouldn't be in such a hurry, it must still have something in its mouth." ”

Dr. Rhein disagreed: "Don't think about it, I've already tried to dig up information from the mouths of the Skeleton Tribe. Controlled by the will of the Ten Thousand Skeletons and with no soul memories, they can't provide any useful information at all. ”

Dr. Thea Sword Rhein has said that this is on it, so he can only stop there.

After about ten minutes, Dr. Rhine was almost out of time, and he pulled the transport pod back.

In the process of returning to the fifth floor, there were no incidents in the transport pod, and it went quite smoothly.

It's just that this time the things that were brought back from the sixth layer of the abyss made Thea and Dr. Rhine frown.

Now in the transport compartment of the two Thea, it is a black and red silt creature.

Unlike the silt creature that had been retrieved before, the silt creature in front of him was one meter and a half tall, five times higher than the previous silt creature, and the content of the strange silt on its body had also increased significantly, and there was even excess silt spewing out of the monster's head little by little.

"Haha, haha......"

"Sure enough, it's exactly what I guessed. ”

Dr. Rhein looked at the monster and laughed.

"The will of the Ten Thousand Skeleton Kingdom is indeed the key to surviving in the Boundary Ruins. ”

"Elder Skeleton carries more will of the Ten Thousand Skeleton Kingdom, so it is born that state is different from that of other living beings and dead souls. ”

Thea frowned as she looked at the strange creatures that were motionless in the transport pod.

"But what's the use of knowing that?"

"We still haven't found a safe way to enter the ruins. ”

Although Xiya said this, even Dr. Rhine, who had become a robot, had an obvious smile on his face.

"No, no, no, there's already a way. ”

"I always thought that the Abyssal Blood Concentrate was the key to keeping living beings alive in the ruins, but unfortunately I was wrong. ”

"The key to true survival is the will of the world, and the Abyssal Blood Concentrate is only the key to the sixth layer of the Abyss. ”

"Only with a strong enough will of the world can we circumvent the transformation of creatures by the Lost Ruins. ”

Xiya swallowed, "You mean to say that those living and dead souls turned into mud because of the transformation of the ruins. ”

Dr. Rhein nodded: "That's right, as long as you have enough world will, you can avoid the transformation of the body by the boundary ruins." The mud life in front of me, which is several times larger than before, is the evidence. ”

Xiya pursed her lips: "But, how do you collect ......?"

"Boom-"

Before Thea could finish her words, there was a sudden explosion in the sixth-floor research institute.

Intruder, appeared!