Chapter 520

The countdown display read 13 hours.

BlackPea looked up at the numbers and frowned.

"Thirteen hours? I thought the Black Fog already reached Floor 8."

Harper did not answer right away.

She stared at the mechanical timer for a moment, sorting through all the information she'd gathered so far.

Black Fog swallowed one floor upward at regular intervals, forcing all players to keep climbing higher. The