Initially, they thought that the thick fog enveloped the later part of the staircase because of the increasing height, but it was not the case. The cloud of fog was abnormal. It was as if the staircase was split in the middle, with an invisible screen acting as a boundary and separating the fog-free area from the foggy area.
Long Zhao Feng and Xiao Yue stopped short from entering the foggy area. Both of them hesitated to take another step.
When they looked down at their boots, they could clearly see that it only took one step forward to be completely engulfed within the fog. Although they squinted at the cloud of fog, they could make up neither shape nor movement. It was not even clear whether another flight of stairs was hidden within the fog.
Long Zhao Feng picked up some pebbles from a side of the staircase.
"What are you doing?" Xiao Yue asked in a whisper.
"Let's see," Long Zhao Feng whispered back.
