After arranging the affairs of Aurelia and Winlessa, the next day, Kael'thas received the news.

The orc warlock has already sent it.

However, Sylvanas and Lotherma did not return, and they seemed to be doing something else, so they only sent a message to say that they were safe, but the specific actions were not explained.

Two legendary pros, there seems to be nothing to worry about.

Kael'thas didn't think too much about it, but he had to put a stop to the Arcane Path.

Aurelia is on her way to the troop with her sister, and Sylvanas and Lotherma have not yet returned, so the LibraryWizard issue can only be put off for the time being.

The first thing to do now is, of course, the demonic experiment.

After waiting for a few hours, the orc warlock was quietly transported to Silvermoon City, and after careful selection, one of the most timid fellows was escorted to the Tower of Death, while the others were arranged in Silvermoon City's secret prison.

The prison of Silvermoon City is not only guarded by powerful elves, but also has many mysterious magical surveillances, and it is impossible for the warlocks of these high-ranking professions to escape.

Kael'thas arrives at the lab after being informed by the mages.

The golden circle had lit up, and a haggard and panicked orc surnamed male was placed in the middle.

He didn't dare to move even though he held the staff, because there were dozens of elven mages with indifferent expressions standing around the circle, ready to turn this orc to ashes at any time.

"Your Highness."

When Kael'thas entered, the old mage from last time took the lead in saluting.

Although he is an old mage, except for some gray hair and eyebrows, his appearance is similar to that of an adult elf.

"Is that him?"

Kael'thas took a few steps forward and glanced at the orc warlock, and after confirming his strength, he asked:

"What about soul shards?"

Even a warlock needs soul shards to summon demons.

"Your subordinates have seized enough debris from the outside world."

The old mage frowned, took out a few purple diamond-shaped crystals from his pocket with some disgust, and said:

"These fragments were originally made by the orcs, and they are enough for us to experiment."

They separated all the pieces from the orc warlocks, so that the warlocks could not summon powerful demons and be kept under control, and when they experimented, they only had to give the pieces to the warlocks.

"Well, let's get started."

When Kael'thas saw the debris, he immediately announced the start of the experiment.

The old mage walked up to the orc warlock, gave him a few cold words of warning, and then handed the warlock a fragment.

The orc warlock nodded in agreement.

"You asked him to summon Hellhounds?"

Kael'thas, who was quite good at hearing, heard the old mage's command, and his face was a little surprised:

"How did you get him to summon this?"

The most dangerous thing for a mage is the Hellhound, which silences the mage's spells. Although there were so many mages present, it was impossible for this orc warlock to pose much of a threat, but it still surprised Kael'thas.

"This is the test, Your Highness, the hellhound does not carry evil flames on it, and it is also the demon of our highest interest."

"We want to see if this circle can work for it."

The old mage replied that order didn't matter too much to them.

Kael'thas had no choice but to let them go.

The orc warlock recited the incantation, and his speed was very fast, and in a matter of seconds, a purple circle formed under his feet.

A disgusting aura poured out of the void, and then the horrible-looking Hellhound stepped out.

The soul fragment in the orc warlock's hand was eaten by it, and then the hellhound stood in the golden circle, looking at the mages around him with a fierce look.

"Kill it!"

The golden circle did not work, and the old mage immediately gave the order.

Several spells had been prepared to cover the circle from all sides, and the Hellhound wailed, and in a moment it was burned to ashes.

Its high level of magical resistance was useless in the face of numerous mages - "Failed? ”

Kael'thas asked, frowning.

"Yes, Your Highness"

The old mage's face showed regret, and then he cheered up again:

"We'll move on to the next trial right away."

He walked over to the orc warlock, and after giving some more orders, he handed over another soul fragment.

This time, it's to summon the Voidwalker.

Kael'thas was a little puzzled, Voidwalkers weren't technically demons. They can be more closely described as a new type of life form that is produced by the accumulation of energy from shadow energy. They are created by the shadows around them.

However, the Voidwalker is known for its superior defense and vitality, and can be used as a meat shield, which may explain why the mages put it in second place.

The orc warlock recited the incantation, and as the fragments of his soul vanished, a shadow elemental body gradually formed.

But the elemental body had only just taken shape, and it suddenly let out a wailing sound.

"Wow!"

The orc warlock also folded his head and wailed.

The mages were overjoyed to see that the Voidwalker's shadow body was gradually turning golden.

"Protect that warlock from being eaten by the contract!"

The old mage spoke to the others, and immediately some of the mages recited a spell to protect the souls of the orcs.

The Void Walker is transforming, and the contract with the orc warlock is changing, which is an act that causes an essential change, which will make the contract between the orc and this race disappear, so it will bring huge pressure to the orc warlock.

A moment later, the Voidwalker transformation was complete, and an even smaller, golden-flame elemental body took shape.

It resembles the fire elemental in appearance, but in a completely different nature.

"Probe."

Some blue ribbons fluttered around the Void Walker, and it didn't hurt the Void Walker, so the new creature blinked its pure eyes without the slightest resistance.

"Health and resilience are all in line with the requirements, and the skills, although uncertain, should retain the characteristics of the Voidwalker."

After exploring, the other mages were pleasantly surprised to come to the conclusion that the essence of the Void Walker had not changed.

The experiment was successful.

[Could it be that only elemental bodies and demons controlled by evil flames are possible?] 】

Kael'thas thought that this was the only way to explain why the Hellhounds had not been converted.

Demon creatures that are supposed to be dominated by ** cannot be converted, while demons dominated by elements and flames can.

Later experiments gradually proved that this is the correct surname.

The Hellfire Transformation, the Void Walker Transformation, and the Burning Dread Horse Transformation succeeded, and the other demons such as the Succubus, the Regional Hound, and the Demon Guardian all failed.

Of course, there is also a little imp who is not considered powerful, and does not even need to be summoned by soul fragments, and the conversion is successful.

(To be continued)