Tang Yanqing spoke nonchalantly, yet there was a small sense of pride gathering at the corners of his eyes and smile. Luo Xiansheng, however, showed a slight change in his expression.
Tang Yanqing was unconcerned, speaking as he stood in the elevator, glancing through the glass wall to estimate the difference in height between this private elevator and the public one opposite.
— Since there's a mystery floor, there must be a difference in the stopping height between this elevator and the ordinary one. Finding that difference means finding the location of the mystery floor.
Tang Yanqing observed for a while, then turned and decisively pressed the emergency call button on the elevator control panel.
No alarm sounded as expected in the elevator; instead, it came to an abrupt halt. The elevator doors opened, revealing a floor.
Tang Yanqing laughed aloud: "Little Sound, I've discovered your secret."
