The thunderous beat of war drums resounded through heaven and earth. Sky Abyss City, towering like a mountain, had been subjected to just a few days of bitter battle, yet everything beyond its walls had already completely fallen. The walls that soared into the sky were battered beyond recognition.
Gap after gap had been torn open, and like floodwaters bursting through a breached dam, a vast tide of demons poured into the city through those openings every moment.
Sky Abyss City, which should have been orderly and well-regulated, had become a battlefield where both sides slaughtered one another.
High in the sky stood the towering city protection array. Its power erupted without restraint, annihilating vast numbers of demons every second, leaving not even bones behind.
Even the demons fortunate enough to survive were usually jointly ground to pieces within a few breaths by the countless warships, fortresses, spirit energy artillery batteries, puppets, and cultivators within the city.
With the Nascent Soul demons yet to enter the city, the several breaches in the walls had become the heart of an unimaginable meat grinder.
Though judging from the surface situation, after the city walls fell, the Demon Side had instead become the side being slaughtered.
Yet everyone clearly understood that the key to it all lay in the city protection array.
So long as no fifth-rank beings appeared, this city protection array, repeatedly improved by Chu Mu, an Array Dao Grandmaster, was practically a true wall of bronze and iron as long as it had sufficient energy.
Even if several Nascent Soul Great Demons arrived together, they would never gain any advantage from this city protection array.
Yet even in the Cultivation World, the law of conservation of energy had to be obeyed. Though spiritual energy was a special form of energy