In the meantime, in the outskirts of Sector 20, beneath the earth and behind walls of black steel and bones, Asad the Necromancer sat at his throne within his Black Citadel while the Grimhold Staff was in his hands.
The area above the shelter had snow as well, but of course, it did not enter the shelter itself.
There was only the coldness in the air, as Asad didn't really install any heaters deep underground. Well, it certainly made sense since, aside from him, his residents were all Undead Creatures.
Asad glanced at the System's warning about the Fourth Zombie Wave.
"Let's see what you bring." He muttered softly as he knew the first batch of the Zombie Horde would help him know what kind of progression he'd face…
'I hope no Armored Zombie in the first batch.' He mused.
After all, if the wave started with such a high level of zombies, then within 24 hours, the escalation might be too much for him, and he might have to escape at some point.