Science and Technology Innovation Tower, twentieth floor.
Zhu Dan waved his hand.
"Stop! Something's wrong here."
"What's up, Boss Zhu? I was having a blast killing them!"
The rocks covering Liu Yang's body were smeared with black blood, making him look ferocious.
"Is there danger?"
Zheng Ying cautiously looked around, but apart from some evolved zombies, she found nothing unusual on the twentieth floor.
Zhu Dan scanned the area again and said slowly, "This floor... there isn't a single living person here."
"Huh? You're right. Why are all the offices around us empty? Did they run downstairs? Or did nobody work on this floor to begin with?"
"Something really is wrong. Look, there's clearly stuff inside the office areas, and the doors are barricaded with all kinds of electrical appliances. Where did the people inside go?"
"Could there have been... an alternate passage they escaped through?"
"Then why didn't the people downstairs escape?"
"Well..."
Zhu Dan and the others had already cleared all the zombies from the floors below the twentieth and rescued several hundred survivors.
"Be careful and keep moving. Maybe it's just a coincidence."
After clearing the zombies from this floor, everyone went up through the emergency stairwell.
On the twenty-first floor, there was still not a single person!
"Strange... someone downstairs clearly said his former colleague was trapped on the twenty-second floor and asked us to rescue her. What's going on?"
Through the clear glass, they could see that this floor also had many empty offices with tables blocking their doorways.
"Why does this feel like a locked-room murder mystery?"
"Hiss..."
"It's got that vibe!"
Everyone felt a chill run down their spines. Where were the people?
Zombies that could run, jump, and bite weren't frightening. The unknown was what frightened them most!
"Once we finish killing