The sound belonged to none of the flying magical beasts they knew.
It was the sound of something slicing rapidly through the air.
Elder Muyu abruptly looked up.
A black dot streaked across the night sky at a speed barely visible to the naked eye, flying precisely over the Corroder army.
The next second, the black dot burst in midair with a pop.
Dozens of smaller metal warheads scattered out of it.
Like dandelion seeds, these metal warheads drifted down in a shower.
The Liches around the Corroders maintained their Dark Barriers.
The warheads falling from the sky passed through the barriers and met the Heavy Armor Demon Soldiers' defenses.
One landed on a shield with a sharp clang.
Then,
"Boom! Boom! Boom! Boom! Boom-"
A dense series of explosions instantly engulfed the entire area!
These were not magical explosions, but pure, savage physical destruction!
When had the Liches, Corroders, and Heavy Armor Demon Soldiers beneath the barriers ever endured bombardment so concentrated and powerful?
The barriers held for only two short seconds before shattering as the Liches were injured!
Across the area struck, Demon Clan soldiers fell amid the rising dust and smoke, wailing in agony.
Among them were the bloated Corroders.
That single Cluster Bomb sent several vulnerable Corroders beneath this barrier to their deaths.
Perhaps the only saving grace was that the Heavy Armor Demon Soldiers, with their exceptional defenses, had not suffered serious injuries.
But before they could count themselves lucky, that familiar whistle slicing through the night sky rang out again.
The Heavy Armor Demon Soldiers: "..."
They instinctively huddled together, protecting themselves tightly with their shields.
"Boom! Boom! Boom! Boom! Boom-"
This time, the Corroders that had only been wounded in the first wave radiated fear.
Then they were swallowed by billowing dust.
Metal