The city of Beijing was as silent as the dead which stirred in its streets. There was not a sound to be made. And why would there be? All living human beings had long since fled. It had been three months since Zane wiped out the Divine Sword Sect, and during this time he had done nothing but grind.
Grind the undead minions who roamed the streets of Beijing mindlessly. As well as the monsters who managed to escape their ravenous jaws. Whether through overwhelming power and ability, or sheer cunningness.
But the majority of the world's monsters lay outside the domains of the undead. Out in the wilderness. Spawned no doubt by the evolution which was rapidly effecting the world in a deeply unnatural way.