Li Ang's thoughts didn't last long.
RUMBLE. RUMBLE.
The sound of bricks and stones rubbing against each other sounded again in the passage. Li Ang grabbed the cup and the plastic tubing from the floor, rushed to the wall panel, and forcefully pressed the red button.
Indeed, just as the letter had said, after he pressed the button, the inner door of Room C opened with a click. Li Ang quickly stepped into the circle on the floor, waiting for the outer door to open—this time, the door opened much slower, creeping like a snail.
The moment the door opened just wide enough for one person to pass, Li Ang, unable to wait any longer, rushed out. The instant he poked his head into the passage, he only saw a figure in an outfit stepping into Room D next door and disappearing from sight.
"Stop! Don't run!"
Li Ang sprinted to the door of Room D and slapped it, but got no response.
"Damn it."
