"Granny? Granny?" Mo Daidai called out softly as if the old lady had left.
The next second, the corridor's overhead lights flickered a few times before suddenly dimming. Yang Xiao's heart skipped a beat, cursing inside that things had gone wrong—it was probably midnight already.
No longer hesitating, Yang Xiao immediately left and headed towards the emergency exit on the left side of the corridor. But before he could get close to the heavy-duty safety door, he abruptly stopped in his tracks upon hearing a strange noise coming from behind the door in the emergency stairwell.
"Bang."
"Bang."
...
Yang Xiao turned and ran. It was the sound of a ball being slapped—the Ball-slapping Ghost was coming, and Yang Xiao had not expected it to arrive so quickly.