Those skeletons had merely been cannon fodder Zhao Fu had sent out to test what methods the player army possessed. The true undead army was still behind them.
The black magic formation now being unleashed was still the Undead Catastrophe, but unlike before, this time it was not a summoning—it was support. It strengthened the undead army's defenses and attacks, accelerated their recovery, and enhanced their calamity attribute.
Only with this black magic formation present could the terror of the Undead Catastrophe truly be revealed. The black magic formation combined with the Calamity King's Ring's power was the union of the Undead Catastrophe and endless calamities, creating the black sea of bones below.
"Quick! Fire!"
Watching the endless skeletons surge toward them like a black ocean, several commanders shouted at the top of their lungs, their voices filled with terror.
The countless stunned players hurriedly came to their senses and loosed arrow after arrow.
"Whoosh! Whoosh! Whoosh..."
The sounds of arrows slicing through the air rang out as arrows trailed streaks of white light toward the countless skeletons with astonishing momentum. Yet when the countless arrows fell into the black sea of bones, they had no effect at all.
All that light-attribute power was blocked by the black aura of calamity, unable to harm the skeletons in the slightest.
Suddenly!
Bone arrows shot back from within the black sea of bones. Player after careless player was struck, and screams instantly rang out across the defensive wall as quite a few players were killed outright.
Very soon!
The black sea of bones was about to crash against the base of the defensive wall. Immediately, several commanders ordered barrel after barrel to be thrown out. The barrels shattered the instant they struck the ground, and oil poured out in streams.
Over a