The elevator doors slowly closed, and Bo Yi let out a breath of relief before taking stock of the elevator around him.
The elevator was filled with a stale smell of wood and machine oil, tinged with a faint mustiness. Perhaps because it needed to remain hidden, its interior was not particularly spacious. Its four walls were made of slightly rough wooden planks, with steel plates used only for the floor and ceiling. Scratches of varying depths covered the thick wooden walls, while broad trails left by heavy objects being dragged marked the steel floor near the doors.
A dim yellow pendant light swayed gently overhead, barely illuminating the small space and the control panel beside the doors. Green corrosion coated the old buttons, obscuring their markings until they were almost illegible. Bo Yi studied them for several seconds before realizing that they were marked not with numbers, but with two symbols: up and down.
Bo Yi stared at the buttons for a couple of seconds, then chose the up button.
The upper button lit up with a soft green glow. A moment later, accompanied by the creaking of machinery, the elevator slowly began to move. Amid the low rumble, the entire car seemed to tremble faintly.
Fortunately, the floors were not far apart. Soon, a "ding-" sounded, the illuminated button abruptly went dark, and the elevator doors slowly opened.
Bright light poured into the elevator, revealing a laboratory completely different from the one downstairs-
Although it was the middle of the night, the room was as bright as day. All four walls were painted a soft white, and rows of warm lights hung from the high ceiling, casting a gentle yet brilliant glow. Their light fell on the colorful stained-glass windows set into the surrounding walls, lending the entire