"Rumble—!!!"
As over a hundred Giant Arcane Cannons fired, the earth-shattering roar seemed to explode directly beside everyone's ears, even from such a great distance.
The entire Iron Curtain Wall shook violently as an unimaginable explosion erupted within the breach.
A visible shockwave burst forth from the gap, instantly pulverizing everything nearby—whether defenders or slave creatures—into dust.
A massive mushroom cloud of smoke and flame rose into the sky, as though the gates of hell had opened in the mortal world.
But that was not the end. The main cannons of the three Destroyer Warships above the clouds had also completed their final charge.
Three dark-blue pillars of energy, as thick as mountains, descended from the heavens like punishment delivered by the gods. Silent yet swift as lightning, they struck several sections of the Iron Curtain Wall where defensive runes were most densely packed and where the defenders' command nodes were likely located.
There was no deafening explosion, only a strange, teeth-grinding sound of matter being forcibly broken down and annihilated.
The sections of wall that were hit, along with every defender, fortification, and monster atop them, vanished completely and silently, like pencil drawings erased by an eraser.
There were no fragments and no explosions. Only enormous, mirror-smooth gaps remained, vitrified by searing heat.
This terrifying firepower, beyond the limits of imagination, completely shattered the last vestiges of the Tulus defenders' will to resist. The remaining troops fell into immense chaos and panic.
Seizing the opportunity, an even larger new wave of the Slave Creature Legion surged from behind the Allied Legion. Mixed among them were high-ranking demons and war beasts of exceptional size, clearly serving as the main assault force. Like a flood bursting through a dam, they launched their final, unstoppable charge at the Iron Curtain Great Wall,