The dense artillery fire against the eerie shadow abilities was completely ineffective in stopping the Gulu Beast's attack.
Once these Gulu Beast adapt to the rhythm of the battlefield, opponents like the Metal Fortress, which cannot move and has limited attack methods, will be easily defeated by Gulu Beast.
So far, not a single Gulu Beast has been killed; only a few dozen Gulu Beast have been wounded by artillery fire.
If the metal fortress has no other means of attack besides these cannons, then sooner or later they will all be dragged out of the metal fortress one by one.
In just a few minutes, a third of the metal fortress was torn open, revealing the Cyborg inside.
Benji grinned from ear to ear, unable to contain his delight at how well his offspring had performed.
She would never have performed so powerfully if she hadn't been injected with the blood of the Goddess of Darkness.
Their fighting strength now surpasses that of half of the other wizards' slaves, placing them in the upper-middle tier of the slave army.
This is only the Gulu Beast from the ninth generation onwards. The Gulu Beast from the tenth generation onwards have inherited more of the Goddess of Darkness's Bloodline and are even stronger.
Once the tenth generation grows up, Benji seems to have already envisioned a bright future for their Gulu Beast Clan, where they will become famous throughout the universe.
Ignoring the fantasizing Benji, Leo moved swiftly.
Shadow Walking
One step is 6400 meters.
After a few dozen steps, they found themselves in front of a metal fortress that had not yet been attacked by wizards.
The metal fortress, too, had its mountain-like cover removed, revealing the thick metal walls beneath. All the cannons protruding from the fortress were erected, as if awaiting the arrival of the wizard army.
The lowest passageway was sealed off by a thick metal door, and even the top smoke vent was blocked, turning itself into an impenetrable iron shell.
Half of Diro People's corpse can still be seen in front of the metal gate.
This Diro People probably wanted to escape before the metal gate closed, but unfortunately, he only managed to escape halfway.
"Bang bang bang"
Leo lightly tapped the metal door with his Godslaying Staff, as if checking how thick the metal door was.
The muffled sound that came back indicated that the thickness was over five meters.
Is anyone home? I'd like to come in and drop by.
Yaoyao shouted at the top of her lungs, and her knocking on the door went perfectly in sync with Leo's actions.
Leo froze, startled by Yaoyao's words. He glared at Yaoyao, which frightened Yaoyao so much that she ran to the back of Leo's neck and dared not say another word.
Instead of Yaoyao a response from the metal fortress's master, Yao Yao saw all the cannons adjusted and aimed at her.
"How uncivilized! They knocked so politely and didn't even open the door. They deserve to die."
Yaoyao stared at the rows of dark cannon muzzles and kicked the metal gate in front of her fiercely, but the gate was too heavy to move.
"Fine, if the master won't open the door, then we'll just go in ourselves."
The instant all the cannons roared, Leo took a step and disappeared in front of the metal gate.
The moment Leo disappeared, the metal gate was covered by a barrage of artillery fire, leaving craters over ten meters deep before the cannons turned to other positions.
Perhaps in the minds of the Cyborg inside, the strange alien creature that had just knocked on the door had already been blasted to pieces by their artillery.
In their world, there are no creatures that cannot be killed by cannon fire.
If there are any, it's just that there aren't enough cannons.
However, Leo, using his ability to Shadow Walking, had already appeared behind the metal gate.
This is a square, all-metal tunnel, with scorching heat radiating from its end, making the temperature inside feel exceptionally high.
"It's 93°C; this must be where he refines metals and supplies energy."
Holding the Godslaying Staff, Leo strolled slowly through the passage like an old man taking a walk to digest his dinner after a big meal.
Suddenly, the clicking sound of gears turning came from above the passage. Under Leo's gaze, a small opening appeared in the passage above, and a whip crackling with electricity extended out, lashing out at Leo's position.
"Slap"
The crisp sound echoed continuously in the passage, and amidst the crackling of electric arcs, the whip and Leo narrowly missed each other.
"With its relatively primitive mechanical operation, the technological development of the Rota World has clearly taken a different direction."
"It seems their metal fortress doesn't yet have the ability to activate metal, otherwise so many gears wouldn't be turning."
Leo's eyes weren't on the electric arc whip still lashing at him, but rather on the gear structure inside the passage through a small opening.
The first whip missed Leo, and the ceiling of the passage seemed to awaken as if a giant controlling gears had sprung up.
Small openings appeared one by one in the passage, and electric whips shot out. Within the less than fifty-meter-long passage, forty electric whips appeared, attacking almost every step.
Despite the fierce lashes of the whips, Leo's figure blurred into afterimages within the passage, and not a single whip managed to strike Leo.
A breath later, Leo was already in front of the metal furnace.
With a wave of his hand, a Flash Thunderbolt struck, melting all the gears above the passage and trapping the electric whips inside, unable to move.
This is a metal furnace with a diameter of over twenty meters and an internal temperature exceeding three thousand degrees. The blazing flames are bright yellow, and when Leo peers inside through a small hole, he can feel the intense heat emanating from it.
A small hole can be seen at the bottom of the furnace, through which molten metal is flowing deeper.
Leo touched the remaining dust on the ground; this was the most common type of soil in the Rota World.
These metal furnaces used the soil as fuel simply because it contained combustible components.
It can provide heat energy for metal fortresses and also extract metals from the soil.
Although the amount of metal extracted was small, the amount of soil burned every day was considerable. Little by little, it accumulated and created the metal fortress we see today, which is ten meters thick and three to four hundred meters high.
Looking up, bright yellow flames continuously scorched the top of the furnace, but they did not melt the furnace metal.
"The metal inside the fortress has all been transformed into energy metal, which can fully withstand the intense heat."
"It's not about burning boilers; it's a method of energy supply that directly converts heat energy into elemental energy."
Leo analyzed what he saw, stroking his chin.
"Doesn't that mean their energy efficiency is more efficient than boiling water?" Yaoyao said in surprise.
Before Earth was torn apart by the Wizard World, technology on Earth was at the stage of boiling water.
In other words, apart from a few energy utilization methods that cannot be widely adopted, the main energy utilization method is still to first boil water, use steam to drive gears, and generate a large amount of electrical energy through electromagnetic theory. This is a secondary conversion of energy into electrical energy that humans can use.
Each conversion inevitably involves energy waste. Of the initial 100 units of energy, only 30 units remain after two conversions, meaning most of the energy is wasted.
This isn't because humans on Earth like to waste resources, but because we haven't yet found a more efficient way to utilize them.
The furnace in front of us directly converts thermal energy into elemental energy, with a conversion rate of almost 60% or more in a single pass.
Cyborg have the means to convert thermal energy into elemental energy. No wonder there isn't even a blade of grass to be seen in the Rota World. Probably everything that can be burned has long since been burned away, otherwise they would have been reduced to burning soil.
Just by looking at the vast amount of smoke and dust filling the world, you can tell how much stuff these metal fortresses burned.
If it weren't for the arrival of the wizard army, the future of the Rota World would probably have been destroyed by the greedy burning and extraction of these Cyborg. Either the world would destroy them first, or they would burn the entire world first.
After touring the energy center, there wasn't anything particularly remarkable about it. The only thing that interested Leo was their ability to directly convert thermal energy into elemental energy.
However, the wizarding civilization already possessed this method, but its efficiency was too low, and the wizarding civilization disdained to use it.
Furthermore, if energy were extracted through incineration as is the case in the Rota World, environmentalists would probably be the first to jump out and arrest the wizard who dared to do it, to teach him a lesson about environmental protection.
Leo gets investigated for even emitting a small amount of nuclear radiation, yet he's allowed to burn resources on a large scale; he'd be killed on the very first day.
After looking around but not seeing any upward passage, Leo moved and disappeared in front of the furnace.
The figure reappeared, now inside the passage on the next level.
There were several Cyborg walking hurriedly. When they saw Leo, their metal hands transformed into two sharp knives, like flowing liquid.
With a loud 'boom,' the Cyborg broke the sound barrier and swung down towards Leo's head.
Facing the sudden attack, Leo wore a contemptuous smile, raised the Godslaying Staff in his hand, and uttered a soft sound.
" Thunderclap "
Just as the Cyborg's dagger was about to pierce Leo's head, a violent bolt of lightning shot out from the staff in Leo's hand.
The passage, which was originally only dimly lit, was instantly illuminated as if thousands of incandescent light bulbs had been turned on, so bright that Yaoyao immediately covered her eyes with her paws.
When Yaoyao felt the brightness decrease and removed her claws, she saw that the upper bodies of several Cyborg in front of her had been blasted away, leaving only their legs dangling in the passage.
Following the direction of Leo's attack, one can see that Leo not only blasted these Cyborg to death, but also pierced through the metal wall on the other side of the passage. Through the pierced passage, one can see the scenery outside the metal fortress.
"Sorry, I used a little too much force."
Leo wore a sincere apologetic smile, his face devoid of any murderous intent, making him seem like a good friend of the metal fortress's owner.