There were no more Arcane minions on the spiral staircase, and the Legion was confident that they hadn't set any traps here, and even though it hadn't been a demon for a long time.

"The smell of evil energy is very faint, which proves that no demons have been here for a long time, but there are traces of evil energy left on the metal recently, which proves that this tower, which was used as an evil energy amplification device, has just been used recently." Benny stroked the walls all the way, feeling something. "It seems that the Legion is so confident in its engineering skills that it hasn't even sent anyone to maintain it, or is it not part of the Evil Amplification Device?"

"Basically, only the upper floors of the tower are part of the installation." Illidan walked in the front and said without looking back. "The Legion is not a fool who only uses force, although many demons do seem stupid, but you should have seen the Eredas, since Kilgardan and Akmund joined the Legion, these Eredans have become the brains and leaders of the Legion, most of the evil devices are also designed by them, those Gurcan are just crappy mechanics, their only advantage is that they never worry about death, and their souls can sometimes be 'wasted' for the Legion."

"Why, don't you know any of this?" Illidan looked back, his tone almost trademark with disdain. "You said you knew the Legion well."

"Understanding the Legion doesn't mean that I have to understand how the Legion's device works and how it works!" Benny didn't look at him, his eyes slightly closed, and continued to feel the tiny indentations that appeared on the wall from time to time, some of which seemed to be like evil runes, which were difficult to detect with the naked eye.

"You hate me, and I don't like you, Mr. Illidan, but that doesn't seem to mean we have to hurt each other, besides, after this incident, I suggest that the two of us don't come forward and send a more 'sensible' adjutant, otherwise I'm afraid I'll be tempted to get those disgusting green tattoos on your body after all!"

"Ahem, ahem~" Khadgar staggered in surprise and almost crashed into Kael'thas. "What is he doing?"

"Provoked?" Kael'thas spread his hands indifferently, the spinning staircase keeping them just out of Illidan's point of view. Or was he just expressing his thoughts? Hasn't he always been like this, don't make a fuss, look at these evil energy devices, the way demons carve runes is very peculiar, I suspect that they are made of special materials when the metal is smelted, and Quel'Salas has also done this, the advantage of this is that when the magic circle is operating, it will reduce the loss of energy, and indirectly amplify the power of the large magic circle, so that the magic circle is not easy to be destroyed, but it is also quite difficult to do so, because the one who can strike iron is not necessarily a magician, and a magician is generally not a blacksmith. ”

"We have time to study these things." Khadgar rolled his eyes, he and Kael'thas had been messing around together in the Magic Tower for a long time, and his little bit of His Majesty's pride could have been ignored by Khadgar. "Aren't you afraid of them fighting?"

"It doesn't matter if you fight." Kael'thas pursed his lips and touched the wall with a flaming strike, and saw that the not-so-sharp blade easily made a scratch on it, as if it had touched a key point, revealing a spark of evil energy the size of a spark, he stopped to look at it before continuing to walk down the stairs.

"Do you think our collaboration with that Night Elf demon is necessary?"

Khadgar shook his head.

"But that Sagrete keystone is of some use."

"You should also know what your Excellency Speaker is planning, it is nothing more than another tribe, and the word cannon fodder ------ is very appropriate." Kael'thas picked the corners of his mouth. "Our own strength is still a little thin in the end."

Illidan had no intention of fighting the human, he just sneered disdainfully as usual.

Benny's punch hit the cotton, like two people scolding the street, one mouth is like a river, and the other is looking at each other very calmly, and responds with 'hehe'.

"Huh?" Illidan suddenly drew his twin blades with a thud, and Sylvanas frowned, because Illidan was not targeting them, they reached the end of the stairs, and Illidan was aiming at the blue ocean outside the palace gate.

"Arcane Sea!" Khadgar and Kael'thas who followed up had solemn faces, and they lost their ease just now.

It is like a natural rock cave, black metal is coming outside the exit of the stairs, and there are irregular rocks outside, but these rocks seem to be coated with a layer of blue fluorescent dye, a thin layer of blue mist fills the cave, the whole cave is empty and nothing, roughly the whole cave is quite large, the unnatural blue makes the cave present a disturbing and strange feeling.

The attentive Sylvanas saw some traces of manual excavation, as if someone was digging these caves, but it stopped halfway through, and she pointed it out to Benny, who nodded.

"It should be that the legion found out that they couldn't corrupt the corpses of the Titans, so they just stopped the useless project."

"There are seals." Kael'thas suddenly looked at the doorframe at the end of the metal staircase, on which rows of green runes were depicted, flickering runes proving that they were still working. "It should be to prevent the overflow of mana, this unrestrained arcane will corrode natural creations like evil energy, and will produce a large number of arcane creatures just now, the legion must have built this building here for this reason, the so-called evil energy amplification device should have been built to seal this place, and ------"

Kael'thas crossed Illidan, crouched down, and reached out to touch the blue rock.

"These rocks have not been eroded for a long time, and their physical properties have not been changed, which should be the reason why the energy of the evil energy amplification device has been transferred elsewhere."

Benny glanced vaguely at Khadgar, who understood what he meant and nodded slightly.

Illidan, who had been observing left and right, did not speak, but stepped into the cave with his double knives in his hands, and the first time his hard hooves stepped on the blue soil, Illidan frowned, the arcane energy here is not like the kind of violent and aggressive primordial magic, but it is not the orderly energy of Azeroth that has been regulated by the magic net, this kind of magic he once felt, in the lake called the 'Eternal Spring' ten thousand years ago.

"It's not just arcane energy." Benny sniffled. "This is the blood of the Titans, this is the sea of blood."