"The Nether Demon Palace is impossible to breach."
Ten thousand meters in the sky, the Golden Roc Great Demon, three hundred meters long and wide, looked as though it had been forged from gold. Bloodlust and savagery filled its eyes, but now its expression also betrayed frustration and fury.
The Nether Demon Palace was a One-Star Heavy Treasure.
The Golden Roc Great Demon had thought that once the Nether Demon Palace opened, the four Great Demons would have a chance of breaching it together.
Once they breached the Nether Demon Palace, whether or not they could kill the Azure Li Lord, at least...
They would have a chance to take control of the Nether Demon Palace, then use it to break through the spatial barrier and leave the Nether Demon World.
"Damn it, Azure Li has actually gained such complete control over the Nether Demon Palace."
Towering fury blazed in the Golden Roc Great Demon's eyes.
The Golden Roc Great Demon and the other three demon kings knew perfectly well that a weak point had appeared in the Nether Demon World's spatial barrier.
It was the Voidrealm-Breaking Formation set up in the Southern Reach!
But...
They were too powerful!
Even with the Six-Ray Sword Formation added to the Voidrealm-Breaking Formation set up by the Stone Ancestor, the Sea Ancestor, and the others, the passage through the spatial barrier could only accommodate Meridian Opening Realm warriors.
For True Martial Warriors, the number who could pass through would drop sharply.
As for those in the Saint Martial Realm, or even the Venerable Martial Realm... there was no hope whatsoever of leaving the Nether Demon World through the Voidrealm-Breaking Formation set up by the Southern Reach's Eight Great Venerables.
That was why the four Great Demons had turned their attention to the Nether